CN119432300A - A fluorine-containing modified high-performance polyurethane caulking adhesive material and preparation method thereof - Google Patents
A fluorine-containing modified high-performance polyurethane caulking adhesive material and preparation method thereof Download PDFInfo
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- CN119432300A CN119432300A CN202411588705.XA CN202411588705A CN119432300A CN 119432300 A CN119432300 A CN 119432300A CN 202411588705 A CN202411588705 A CN 202411588705A CN 119432300 A CN119432300 A CN 119432300A
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- fluorine
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- performance polyurethane
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000011737 fluorine Substances 0.000 title claims abstract description 74
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 74
- 239000000463 material Substances 0.000 title claims abstract description 63
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 51
- 239000004814 polyurethane Substances 0.000 title claims abstract description 51
- 230000001070 adhesive effect Effects 0.000 title claims description 42
- 239000000853 adhesive Substances 0.000 title claims description 41
- 238000002360 preparation method Methods 0.000 title claims description 19
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 43
- 229920000570 polyether Polymers 0.000 claims abstract description 43
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 30
- 239000003607 modifier Substances 0.000 claims abstract description 30
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004970 Chain extender Substances 0.000 claims abstract description 22
- 239000003085 diluting agent Substances 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 22
- 239000004014 plasticizer Substances 0.000 claims abstract description 22
- 229920005862 polyol Polymers 0.000 claims abstract description 22
- 150000003077 polyols Chemical class 0.000 claims abstract description 22
- 239000012948 isocyanate Substances 0.000 claims abstract description 13
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims description 29
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 21
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 21
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical group OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 18
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical group CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 18
- 239000002904 solvent Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 15
- 239000011707 mineral Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- 239000000806 elastomer Substances 0.000 claims description 12
- 239000003999 initiator Substances 0.000 claims description 12
- SAOKZLXYCUGLFA-UHFFFAOYSA-N bis(2-ethylhexyl) adipate Chemical compound CCCCC(CC)COC(=O)CCCCC(=O)OCC(CC)CCCC SAOKZLXYCUGLFA-UHFFFAOYSA-N 0.000 claims description 9
- 235000019738 Limestone Nutrition 0.000 claims description 8
- 239000006028 limestone Substances 0.000 claims description 8
- KWXGJTSJUKTDQU-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoro-8-iodooctane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)I KWXGJTSJUKTDQU-UHFFFAOYSA-N 0.000 claims description 7
- QUKRIOLKOHUUBM-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl prop-2-enoate Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCOC(=O)C=C QUKRIOLKOHUUBM-UHFFFAOYSA-N 0.000 claims description 7
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 7
- 229930006000 Sucrose Natural products 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 7
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 7
- YFSUTJLHUFNCNZ-UHFFFAOYSA-N perfluorooctane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000005720 sucrose Substances 0.000 claims description 7
- KKYDYRWEUFJLER-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F KKYDYRWEUFJLER-UHFFFAOYSA-N 0.000 claims description 6
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 6
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 3
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 3
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- NFPBWZOKGZKYRE-UHFFFAOYSA-N 2-propan-2-ylperoxypropane Chemical compound CC(C)OOC(C)C NFPBWZOKGZKYRE-UHFFFAOYSA-N 0.000 claims 1
- URLKBWYHVLBVBO-UHFFFAOYSA-N p-dimethylbenzene Natural products CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims 1
- 238000011049 filling Methods 0.000 abstract description 38
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000002209 hydrophobic effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 3
- 150000002221 fluorine Chemical class 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 229920003225 polyurethane elastomer Polymers 0.000 description 5
- 238000001291 vacuum drying Methods 0.000 description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- DJOWTWWHMWQATC-KYHIUUMWSA-N Karpoxanthin Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1(O)C(C)(C)CC(O)CC1(C)O)C=CC=C(/C)C=CC2=C(C)CC(O)CC2(C)C DJOWTWWHMWQATC-KYHIUUMWSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 208000037921 secondary disease Diseases 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a fluorine-containing modified high-performance polyurethane joint filling material which comprises 20-35 parts by weight of polyether polyol, 20-35 parts by weight of filler, 5-10 parts by weight of fluorine-containing modifier, 5-10 parts by weight of cross-linking agent, 5-10 parts by weight of chain extender, 10-20 parts by weight of plasticizer and 2-5 parts by weight of diluent, wherein the B part comprises modified isocyanate, and the mass ratio of the A part to the B part is 2:1. The modified fluorine-containing material has good fluidity, is convenient for construction and joint filling, introduces a fluorine-containing modifier with low surface energy, reduces the surface energy of the material, enhances the hydrophobic property of the material, and finally adopts a cross-linking agent with maleic anhydride functional groups to remarkably improve the adhesiveness with a mixture through grafting reaction on a polymer chain.
Description
Technical Field
The invention relates to the technical field of highway asphalt pavement crack repair materials, in particular to a fluorine-containing modified high-performance polyurethane crack pouring adhesive material and a preparation method thereof.
Background
In the long-term service process of the highway, the road surface can gradually show damage phenomena such as cracks, pits, crazes and the like under the continuous action of multiple factors such as traffic pressure, natural environment conditions and the like. The pavement diseases not only form threat to driving safety and riding comfort, but also further promote the aging process and damage aggravation of the pavement. Among them, cracks are one of the most commonly occurring types of diseases, and their potential influence is particularly remarkable. If no timely and effective treatment measures can be taken on the crack problem, the serious limitation or even interruption of the traffic capacity of the whole highway is most likely caused. Aiming at the main defect of the crack, the current main repairing means is to inject sealant into the crack, so as to realize the sealing and reinforcement of the crack, thereby inhibiting the further expansion of the defect.
The crack pouring glue repairing technology is to pour the crack pouring glue material into the crack bottom to repair the road surface firmly and permanently. The novel pavement can effectively prevent secondary diseases caused by crack diffusion and propagation, and the pavement evenness and the traffic safety are ensured. However, the traditional crack repairing capability of the crack pouring adhesive is limited, and when the crack repairing capability is affected by factors such as weather, temperature, precipitation and the like, especially precipitation factors, the adhesive strength of the traditional crack pouring adhesive after soaking is greatly reduced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The invention is provided in view of the problems of the prior fluorine-containing modified high-performance polyurethane crack pouring adhesive material and the preparation method thereof.
The invention aims to provide a fluorine-containing modified high-performance polyurethane joint filling material and a preparation method thereof, wherein the fluorine-containing modified high-performance polyurethane joint filling material has good fluidity and is convenient for joint filling and use in construction, a fluorine-containing modifier with low surface energy is introduced, the surface energy of the material is reduced, the hydrophobic property of the material is enhanced, and finally, a cross-linking agent with maleic anhydride functional groups is adopted, and the adhesiveness with a mixture is obviously improved through grafting reaction on a polymer chain.
In order to solve the technical problems, the invention provides the technical scheme that the fluorine-containing modified high-performance polyurethane joint filling material comprises an A component and a B component;
the component A comprises the following raw materials, by weight, 20-35 parts of polyether polyol, 20-35 parts of filler, 5-10 parts of fluorine-containing modifier, 5-10 parts of cross-linking agent, 5-10 parts of chain extender, 10-20 parts of plasticizer and 2-5 parts of diluent;
the component B comprises modified isocyanate, and the mass ratio of the component A to the component B is 2:1.
As a preferable scheme of the fluorine-containing modified high-performance polyurethane joint filling material, the polyether polyol comprises one or more of pentaerythritol-based polyether tetraol, sucrose polyether and hexahydroxy polyether, and the filler is one of limestone mineral powder and basalt mineral powder.
As a preferable scheme of the fluorine-containing modified high-performance polyurethane crack pouring adhesive material, the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodine, perfluorooctyl sulfonic acid and heptadecafluorodecyl trimethoxy silane.
As a preferable scheme of the fluorine-containing modified high-performance polyurethane crack pouring adhesive material, the cross-linking agent is one of maleic anhydride grafted polypropylene and maleic anhydride grafted ethylene-vinyl acetate copolymer, and the chain extender is 1, 4-butanediol.
As a preferable scheme of the fluorine-containing modified high-performance polyurethane crack pouring adhesive material, the plasticizer is one or more of dioctyl phthalate and di (2-ethylhexyl) adipate, and the diluent is dibutyl phthalate.
As a preferable scheme of the fluorine-containing modified high-performance polyurethane joint filling material, the modified isocyanate in the component B comprises one or more of hexamethylene diisocyanate, terephthalene diisocyanate, polymethylene polyphenyl isocyanate, liquefied diphenylmethane diisocyanate and isophorone diisocyanate.
A preparation method of fluorine-containing modified high-performance polyurethane crack pouring adhesive material comprises the following steps:
Stirring polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent for 1-2h at 300r/min to obtain a component A;
And step two, the component B comprises modified isocyanate, and the component A and the component B are fully mixed according to the mass ratio of 2:1 to obtain the fluorine-containing modified high-performance polyurethane joint filling material.
As a preferable scheme of the preparation method of the fluorine-containing modified high-performance polyurethane joint filling material, the cross-linking agent is a maleic anhydride grafted ethylene-vinyl acetate copolymer, and the specific preparation process of the maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows:
(1) Mixing maleic anhydride, an initiator and a solvent according to the mass ratio of 2:1:10, stirring for 10-15min at 300r/min, and fully dissolving;
(2) Mixing the mixed solution in the step (1) and elastomer rubber according to the mass ratio of 10:1, stirring for 10min at the temperature of 60 ℃ at the speed of 300r/min, extruding and granulating on a double-screw extruder after the solvent is completely volatilized, and vacuum drying the granules at the temperature of 50-60 ℃ for 6h to obtain the polyurethane elastomer rubber.
The preparation method of the fluorine-containing modified high-performance polyurethane joint filling material comprises the following steps that polyether polyol comprises one or more of pentaerythritol-based polyether tetraol, sucrose polyether and hexahydroxy polyether, filler comprises one of limestone mineral powder and basalt mineral powder, fluorine-containing modifier comprises one of perfluorooctyl ethyl acrylate, perfluorooctyl iodine, perfluorooctyl sulfonic acid and heptadecafluorodecyl trimethoxysilane, chain extender comprises one or more of 1, 4-butanediol, plasticizer comprises dioctyl phthalate and di (2-ethylhexyl) adipate, diluent comprises dibutyl phthalate, initiator comprises one of dicumyl peroxide and benzoyl peroxide, solvent comprises acetone, and elastomer rubber comprises ethylene-vinyl acetate copolymer.
The invention has the beneficial effects that:
(1) The fluorine-containing modified high-performance polyurethane joint filling adhesive material has good fluidity at first and is convenient for construction joint filling.
(2) The fluorine-containing modified high-performance polyurethane joint filling material is based on the surface free energy theory, and the fluorine-containing modifier with lower surface energy is introduced, so that the surface energy of the joint filling material is reduced, the hydrophobic property of the joint filling material is enhanced, and the adhesive property of the joint filling material in a water-immersed state is further ensured.
(3) The fluorine-containing modified high-performance polyurethane joint filling material adopts the cross-linking agent with maleic anhydride functional groups, and the adhesiveness with the mixture is obviously improved through grafting reaction on a polymer chain.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of a test piece of the fluorine-containing modified high-performance polyurethane joint filling material and a preparation method thereof.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Referring to fig. 1, there is provided a fluorine-containing modified high-performance polyurethane joint filling material, which includes an a component and a B component;
the component A comprises the following raw materials, by weight, 20-35 parts of polyether polyol, 20-35 parts of filler, 5-10 parts of fluorine-containing modifier, 5-10 parts of cross-linking agent, 5-10 parts of chain extender, 10-20 parts of plasticizer and 2-5 parts of diluent;
the component B comprises modified isocyanate, and the mass ratio of the component A to the component B is 2:1.
The polyether polyol comprises one or more of pentaerythritol polyether tetrol, sucrose polyether and hexahydroxy polyether, and the filler is one of limestone mineral powder and basalt mineral powder.
Specifically, the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodine, perfluorooctyl sulfonic acid and heptadecafluorodecyl trimethoxy silane.
Wherein the cross-linking agent is one of maleic anhydride grafted polypropylene and maleic anhydride grafted ethylene-vinyl acetate copolymer, and the chain extender is 1, 4-butanediol.
Further, the plasticizer is one or more of dioctyl phthalate and di (2-ethylhexyl) adipate, and the diluent is dibutyl phthalate.
Wherein the modified isocyanate in the component B comprises one or more of hexamethylene diisocyanate, terephthalene diisocyanate, polymethylene polyphenyl isocyanate, liquefied diphenylmethane diisocyanate and isophorone diisocyanate.
A preparation method of fluorine-containing modified high-performance polyurethane crack pouring adhesive material comprises the following steps:
Stirring polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent for 1-2h at 300r/min to obtain a component A;
And step two, the component B comprises modified isocyanate, and the component A and the component B are fully mixed according to the mass ratio of 2:1 to obtain the fluorine-containing modified high-performance polyurethane joint filling material.
Wherein the cross-linking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer, and the specific preparation process of the maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows:
(1) Mixing maleic anhydride, an initiator and a solvent according to the mass ratio of 2:1:10, stirring for 10-15min at 300r/min, and fully dissolving;
(2) Mixing the mixed solution in the step (1) and elastomer rubber according to the mass ratio of 10:1, stirring for 10min at the temperature of 60 ℃ at the speed of 300r/min, extruding and granulating on a double-screw extruder after the solvent is completely volatilized, and vacuum drying the granules at the temperature of 50-60 ℃ for 6h to obtain the polyurethane elastomer rubber.
The polyether polyol comprises one or more of pentaerythritol polyether tetraol, sucrose polyether and hexahydroxy polyether, the filler is one of limestone mineral powder and basalt mineral powder, the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodide, perfluorooctyl sulfonic acid and heptadecafluorodecyl trimethoxy silane, the chain extender is 1, 4-butanediol, the plasticizer is one or more of dioctyl phthalate and di (2-ethylhexyl) adipate, the diluent is dibutyl phthalate, the initiator comprises one of dicumyl peroxide and benzoyl peroxide, the solvent is acetone, and the elastomer rubber is ethylene-vinyl acetate copolymer.
Example 1
A fluorine-containing modified high-performance polyurethane joint filling adhesive material and a preparation method thereof are provided:
The fluorine-containing modified high-performance polyurethane joint filling adhesive material consists of a component A and a component B. The component A specifically comprises 25 parts of polyether polyol, 25 parts of filler, 10 parts of fluorine-containing modifier, 10 parts of cross-linking agent, 10 parts of chain extender, 15 parts of plasticizer and 5 parts of diluent, wherein the total mass is 100 parts. Component B comprises a modified isocyanate. The mass ratio of the component A to the component B is 2:1.
Wherein the polyether polyol is pentaerythritol-based polyether tetrol;
the filler is limestone mineral powder;
The fluorine-containing modifier is perfluoro octyl ethyl acrylate;
the cross-linking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer;
The chain extender is 1, 4-butanediol;
the plasticizer is adipic acid di (2-ethylhexyl) ester;
The diluent is dibutyl phthalate;
the specific preparation process of the maleic anhydride grafted ethylene-vinyl acetate copolymer comprises the following steps:
(1) Mixing maleic anhydride, an initiator and a solvent according to the mass ratio of 2:1:10, and stirring for 15min at 300r/min to fully dissolve;
(2) Mixing the mixed solution in the first step with elastomer rubber according to the mass ratio of 10:1, stirring for 10min at the temperature of 60 ℃ at the speed of 300r/min, extruding and granulating on a double-screw extruder after the solvent is completely volatilized, and vacuum drying the granules at the temperature of 60 ℃ for 6h to obtain the polyurethane elastomer rubber;
Wherein the initiator is dicumyl peroxide;
The solvent is acetone;
The elastomer rubber is ethylene-vinyl acetate copolymer;
stirring polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent for 1-2h at 300r/min to obtain a component A;
And fully mixing the component A and the component B according to the mass ratio of 2:1 to obtain the fluorine-containing modified high-performance polyurethane joint filling material.
Example 2
A fluorine-containing modified high-performance polyurethane joint filling adhesive material and a preparation method thereof are provided:
the fluorine-containing modified high-performance polyurethane joint filling adhesive material consists of a component A and a component B. The component A specifically comprises 30 parts of polyether polyol, 30 parts of filler, 5 parts of fluorine-containing modifier, 10 parts of cross-linking agent, 10 parts of chain extender, 20 parts of plasticizer and 5 parts of diluent, wherein the total mass is 100 parts. Component B comprises a modified isocyanate. The mass ratio of the component A to the component B is 2:1.
Wherein the polyether polyol is sucrose polyether;
the filler is limestone mineral powder;
The fluorine-containing modifier is perfluorooctyl iodide;
the cross-linking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer;
The chain extender is 1, 4-butanediol;
the plasticizer is adipic acid di (2-ethylhexyl) ester;
The diluent is dibutyl phthalate;
the specific preparation process of the maleic anhydride grafted ethylene-vinyl acetate copolymer comprises the following steps:
(1) Mixing maleic anhydride, an initiator and a solvent according to the mass ratio of 2:1:10, and stirring for 13min at 300r/min to fully dissolve;
(2) Mixing the mixed solution in the first step with elastomer rubber according to the mass ratio of 10:1, stirring for 10min at the temperature of 60 ℃ at the speed of 300r/min, extruding and granulating on a double-screw extruder after the solvent is completely volatilized, and vacuum drying the granules at the temperature of 55 ℃ for 6h to obtain the polyurethane elastomer rubber;
Wherein the initiator is benzoyl peroxide;
The solvent is acetone;
The elastomer rubber is ethylene-vinyl acetate copolymer;
stirring polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent for 1-2h at 300r/min to obtain a component A;
And fully mixing the component A and the component B according to the mass ratio of 2:1 to obtain the fluorine-containing modified high-performance polyurethane joint filling material.
Example 3
A fluorine-containing modified high-performance polyurethane joint filling adhesive material and a preparation method thereof are provided:
The fluorine-containing modified high-performance polyurethane joint filling adhesive material consists of a component A and a component B. The component A specifically comprises 30 parts of polyether polyol, 30 parts of filler, 10 parts of fluorine-containing modifier, 5 parts of cross-linking agent, 10 parts of chain extender, 20 parts of plasticizer and 5 parts of diluent, wherein the total mass is 100 parts. Component B comprises a modified isocyanate. The mass ratio of the component A to the component B is 2:1.
Wherein the polyether polyol is hexahydroxy polyether;
the filler is basalt mineral powder;
the fluorine-containing modifier is perfluorooctyl sulfonic acid;
the cross-linking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer;
The chain extender is 1, 4-butanediol;
the plasticizer is adipic acid di (2-ethylhexyl) ester;
The diluent is dibutyl phthalate;
the specific preparation process of the maleic anhydride grafted ethylene-vinyl acetate copolymer comprises the following steps:
(1) Mixing maleic anhydride, an initiator and a solvent according to the mass ratio of 2:1:10, and stirring for 10min at 300r/min to fully dissolve;
(2) Mixing the mixed solution in the first step with elastomer rubber according to the mass ratio of 10:1, stirring for 10min at the temperature of 60 ℃ at the speed of 300r/min, extruding and granulating on a double-screw extruder after the solvent is completely volatilized, and vacuum drying the granules at the temperature of 60 ℃ for 6h to obtain the polyurethane elastomer rubber;
Wherein the initiator is dicumyl peroxide;
The solvent is acetone;
The elastomer rubber is ethylene-vinyl acetate copolymer;
stirring polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent for 1-2h at 300r/min to obtain a component A;
And fully mixing the component A and the component B according to the mass ratio of 2:1 to obtain the fluorine-containing modified high-performance polyurethane joint filling material.
Comparative example 1
The only difference from example 1 is that no fluorine-containing modifier was added.
Comparative example 2
The only difference from example 1 is that no crosslinking agent is added.
Comparative example 3
The only difference from example 1 is that no fluorine-containing modifier and no crosslinking agent are added.
The fluorine-containing modified high-performance polyurethane joint filling adhesive materials prepared in the examples and the comparative examples are subjected to performance test.
The polyurethane grouting material prepared above was subjected to bonding strength test, asphalt concrete test pieces and cement concrete test pieces were molded according to waterproof paint for road and bridge (JC/T975-2005), and bonding jigs were adhered to both sides of the test pieces with high-strength epoxy resin adhesive, as shown in FIG. 1. Placing a test piece bonded with a clamp for 24 hours under standard conditions, then placing the test piece in a water bath at 45 ℃ for 3 days, and finally adopting a tensile testing machine to perform bonding performance test, wherein the loading rate is 10mm/min, and the bonding strength A is calculated according to the following formula:
wherein:
q-the bonding strength of the joint filling adhesive A, wherein the unit is megapascals (MPa);
p-the peak force applied to the test piece in newtons (N);
m, the bonding area of the joint filling adhesive material and the test piece is expressed as square centimeters (cm < 2 >).
TABLE 1 adhesive strength of different samples
The fluorine-containing modifier has obvious effect of improving the water-immersed adhesive strength of the polyurethane joint filling material, the example 1 and the comparative example 2 show that the cross-linking agent has obvious effect of improving the adhesive strength of the polyurethane joint filling material, the comparative examples 1-3 and the comparative example 3 show that the cross-linking agent can obviously improve the adhesive strength of the polyurethane joint filling material, but the adhesive strength of the polyurethane joint filling material can not reach the optimal state under the water-immersed condition, and the fluorine-containing modifier with lower surface energy can ensure the excellent water-immersed adhesive performance, and the adhesive strength of the polyurethane joint filling material compounded by the fluorine-containing modifier and the cross-linking agent is improved by 120.4 percent compared with the adhesive strength of the conventional material.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (9)
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