CN111808264A - Polyurethane foaming raw material - Google Patents
Polyurethane foaming raw material Download PDFInfo
- Publication number
- CN111808264A CN111808264A CN202010719633.3A CN202010719633A CN111808264A CN 111808264 A CN111808264 A CN 111808264A CN 202010719633 A CN202010719633 A CN 202010719633A CN 111808264 A CN111808264 A CN 111808264A
- Authority
- CN
- China
- Prior art keywords
- polyurethane foaming
- parts
- polyester polyol
- white
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005187 foaming Methods 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 title claims abstract description 31
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 31
- 239000002994 raw material Substances 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 62
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 13
- 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 abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 4
- 238000004321 preservation Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000004831 Hot glue Substances 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- -1 polymethylene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
-
- 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
- C09J175/06—Polyurethanes from polyesters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a polyurethane foaming raw material, and belongs to the technical field of foaming materials. The invention comprises white material and black material; the mass ratio of the white material to the black material is 1.1-1.4; the black material is diphenylmethane diisocyanate; the white material is prepared from the following raw materials in parts by weight: 35-45 parts of polyester polyol I, 35-50 parts of polyester polyol II, 15-35 parts of polyester polyol III, 1-2 parts of water and 2-4 parts of auxiliary agent. The polyurethane foaming raw material can be used for bonding two irregular contact surfaces, can be uniformly filled in the two irregular contact surfaces, has good heat preservation performance and larger viscosity, and is suitable for popularization and application.
Description
Technical Field
The invention belongs to the technical field of foaming materials, and particularly relates to a polyurethane foaming raw material.
Background
With the development of the technology, parts with uneven contact surfaces need to be adhered together and have the function of heat preservation on some products. For example, flat vacuum insulation panels (hereinafter referred to as "VIP panels") are bonded to the cabinet with the condenser on both sides of the refrigerator cabinet. The condenser is a round long pipe (the outer diameter is 4.7mm), the long pipes are arranged on two sides of the product in an S-shaped dense mode (the interval of each row is about 100mm), when the VIP plate is directly attached to the condenser, due to the blocking of the outer diameter, the attachment is not tight enough, and a gap is reserved in the middle. This can cause the VIP panel to debond, affecting appearance. Meanwhile, the edge effect of the VIP board is increased, and the heat insulation performance of the VIP board is influenced, so that the heat insulation performance of the whole product is reduced. It is comparatively common to adopt the hot melt adhesive injection machine to spout the hot melt adhesive that one deck thickness surpassed the condenser external diameter on the refrigerator curb plate among the prior art, then paste the VIP board, but this mode hot melt adhesive quantity is great, and the cost is higher, and hot melt adhesive thermal insulation performance is relatively poor simultaneously, influences whole thermal insulation performance. Therefore, it is desired to develop a polyurethane foaming material in order to solve the above problems.
Disclosure of Invention
The invention aims to provide a polyurethane foaming raw material, and solves the existing problems.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a polyurethane foaming raw material, which comprises a white material and a black material; the mass ratio of the white material to the black material is 1.1-1.4;
the black material is diphenylmethane diisocyanate;
the white material is prepared from the following raw materials in parts by weight:
further, the polyester polyol I has a hydroxyl value of 310mgKOH/g and a viscosity of 2500-.
Further, the polyester polyol II has a hydroxyl value of 410mgKOH/g and a viscosity of 2000-4000(25 ℃ C.)/mPas.
Further, the polyester polyol III had a hydroxyl value of 310mgKOH/g and a viscosity of 13000-23000(25 ℃ C.)/mPas.
Further, the auxiliary agent comprises a catalyst and a stabilizer.
The invention has the following beneficial effects:
the polyurethane foaming raw material can be used for bonding two irregular contact surfaces, can be uniformly filled in the two irregular contact surfaces, has good heat preservation performance and larger viscosity, and is suitable for popularization and application.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention relates to a polyurethane foaming raw material, which comprises a white material and a black material; the mass ratio of the white material to the black material is 1.1-1.4;
the black material is diphenylmethane diisocyanate;
the white material is prepared from the following raw materials in parts by weight:
among them, the polyester polyol I is preferably CF-6320 available from Nanjing Kangplast chemical Co., Ltd, having a hydroxyl value of 310mgKOH/g and a viscosity of 2500-.
Among them, the polyester polyol II is preferably CF-8420 produced by Nanjing Kangplastde chemical Co., Ltd, having a hydroxyl value of 410mgKOH/g and a viscosity of 2000-4000(25 ℃ C.)/mPas.
Among them, polyester polyol III is preferably CF-6300, manufactured by Nanjing Kangplastde chemical Co., Ltd, having a hydroxyl value of 310mgKOH/g and a viscosity of 13000-23000(25 ℃ C.)/mPas.
Wherein the auxiliary agent comprises a catalyst and a stabilizing agent.
The refrigerator heat-insulating layer is also formed by foaming polyurethane foaming materials, although the refrigerator heat-insulating layer and the refrigerator heat-insulating layer in the prior art are both polyurethane materials, the refrigerator heat-insulating layer and the refrigerator heat-insulating layer are obviously different from each other, and the polyurethane foaming raw materials of the refrigerator heat-insulating layer and the refrigerator heat-insulating layer in the prior art are mainly different from the polyurethane foaming materials commonly used in the prior art in that:
(1) black materials: the black material of the polyurethane foaming raw material adopts diphenylmethane diisocyanate (MDI for short); in the prior art, the black material of the common polyurethane foaming material is polyphenyl polymethylene polyisocyanate, crude MDI or PAPI for short, which is an oligomer of MDI;
(2) white materials: the white material is a mixture, and the white material of the polyurethane foaming raw material is a mixture consisting of a plurality of polyester polyols (the content ratio is more than 95 percent), water and an auxiliary agent; in the prior art, the white material of the common polyurethane foaming material is a mixture of a plurality of polyether polyols (the content ratio is more than 95 percent), water and an auxiliary agent;
(3) foaming agent: the polyurethane foaming raw material does not need a foaming agent; in the prior art, a common polyurethane foaming material must use a foaming agent, which is cyclopentane, 245fa, LBA and the like generally;
(4) free density after molding: the free density of the polyurethane foaming raw material after foam molding is 50-60kg/m3(ii) a In the prior art, the natural density of the common polyurethane foaming material after foam forming is 20-25kg/m3；
(5) Viscosity of raw materials: the polyurethane foaming raw material has higher viscosity; in the prior art, the viscosity of common polyurethane foaming materials is low.
The first embodiment is as follows:
a polyurethane foaming raw material comprises a white material and a black material; the mass ratio of the white material to the black material is 1.2;
the black material is diphenylmethane diisocyanate;
the white material is prepared from the following raw materials in parts by weight:
the preparation and use processes of the polyurethane foaming raw material are as follows:
step one, mixing white materials according to parts by weight under the condition that the material temperature is 16-20 ℃, and storing the mixture in a white material tank;
step two, storing the black material in a black material tank under the condition that the material temperature is 16-20 ℃;
step three, injecting white materials and black materials into an inner cavity of a material injection gun head at high speed and high pressure at the same time, and spraying the mixture at a part needing to be bonded through a gun head nozzle after the mixture is fully mixed;
and step four, keeping a certain pressure on the two parts to be bonded for 15-60 seconds, and after the black material and the white material are reacted, removing the pressure after curing, and simultaneously completing bonding.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A polyurethane foaming raw material is characterized by comprising a white material and a black material; the mass ratio of the white material to the black material is 1.1-1.4;
the black material is diphenylmethane diisocyanate;
the white material is prepared from the following raw materials in parts by weight:
2. the polyurethane foaming material as claimed in claim 1, wherein the polyester polyol I has a hydroxyl value of 310mgKOH/g and a viscosity of 2500-4000(25 ℃) mPas.
3. The polyurethane foaming material as claimed in claim 1, wherein the polyester polyol II has a hydroxyl value of 410mgKOH/g and a viscosity of 2000-4000(25 ℃) mPas.
4. The polyurethane foaming material as claimed in claim 1, wherein the polyester polyol III has a hydroxyl value of 310mgKOH/g, and a viscosity of 13000-23000(25 ℃ C.)/mPas.
5. The polyurethane foaming raw material according to claim 1, wherein the auxiliary agent comprises a catalyst and a stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010719633.3A CN111808264A (en) | 2020-07-23 | 2020-07-23 | Polyurethane foaming raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010719633.3A CN111808264A (en) | 2020-07-23 | 2020-07-23 | Polyurethane foaming raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111808264A true CN111808264A (en) | 2020-10-23 |
Family
ID=72860883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010719633.3A Pending CN111808264A (en) | 2020-07-23 | 2020-07-23 | Polyurethane foaming raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111808264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113637136A (en) * | 2021-07-26 | 2021-11-12 | 万华建筑科技有限公司 | Mixed foaming agent combined polyether and polyurethane hard foam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148493A (en) * | 2007-10-31 | 2008-03-26 | 无锡双象化学工业有限公司 | Polyester type ultra-low density polyurethane resin for shoes |
| JP2015505336A (en) * | 2012-01-18 | 2015-02-19 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Method for producing rigid polyurethane foam or rigid polyisocyanurate foam, rigid polyurethane or polyisocyanurate foam and method for using the same, polyol component |
| CN108409934A (en) * | 2018-03-09 | 2018-08-17 | 旭川化学（昆山）有限公司 | Height rebound Low temperature-resistanpolyurethane polyurethane sole raw material and preparation method thereof |
| CN109400839A (en) * | 2018-10-16 | 2019-03-01 | 上海东大聚氨酯有限公司 | A kind of flame retardant combination polyethers, fire-retardant polyisocyanurate foam and preparation method thereof |
| CN109749613A (en) * | 2018-12-20 | 2019-05-14 | 上海东大聚氨酯有限公司 | A kind of environmentally friendly spraying combined polyether, polyurethane foam and its feedstock composition and preparation method |
-
2020
- 2020-07-23 CN CN202010719633.3A patent/CN111808264A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148493A (en) * | 2007-10-31 | 2008-03-26 | 无锡双象化学工业有限公司 | Polyester type ultra-low density polyurethane resin for shoes |
| JP2015505336A (en) * | 2012-01-18 | 2015-02-19 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Method for producing rigid polyurethane foam or rigid polyisocyanurate foam, rigid polyurethane or polyisocyanurate foam and method for using the same, polyol component |
| CN108409934A (en) * | 2018-03-09 | 2018-08-17 | 旭川化学（昆山）有限公司 | Height rebound Low temperature-resistanpolyurethane polyurethane sole raw material and preparation method thereof |
| CN109400839A (en) * | 2018-10-16 | 2019-03-01 | 上海东大聚氨酯有限公司 | A kind of flame retardant combination polyethers, fire-retardant polyisocyanurate foam and preparation method thereof |
| CN109749613A (en) * | 2018-12-20 | 2019-05-14 | 上海东大聚氨酯有限公司 | A kind of environmentally friendly spraying combined polyether, polyurethane foam and its feedstock composition and preparation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113637136A (en) * | 2021-07-26 | 2021-11-12 | 万华建筑科技有限公司 | Mixed foaming agent combined polyether and polyurethane hard foam |
| CN113637136B (en) * | 2021-07-26 | 2023-01-31 | 万华建筑科技有限公司 | Mixed foaming agent combined polyether and polyurethane hard foam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5179143A (en) | Process for the preparation of compression molded materials | |
| EP3097132B1 (en) | Process for making rigid polyurethane or urethane-modified polyisocyanurate foams | |
| CN108623771B (en) | Hydroxyl-terminated polyurethane prepolymer and preparation method thereof | |
| CN106317365B (en) | Bio-based polyurethane sprayed-on plastic foam with high-content biological sill | |
| CN110776869B (en) | High-temperature-resistant high-strength polyurethane structural adhesive and preparation method thereof | |
| CN103923290B (en) | A kind of two component raw material of hard polyurethane foam and constructional method thereof being applicable to low temperature environment | |
| JP2002507261A (en) | Metal panel with sandwich structure | |
| AU616026B2 (en) | Process for the preparation of compression molded materials | |
| CN109422862B (en) | Rigid polyurethane foam systems and their use | |
| CN102079803A (en) | Full-water-type combined polyether and application method thereof, and polyurethane rigid foam composition | |
| CN111808264A (en) | Polyurethane foaming raw material | |
| CN107163220A (en) | A kind of polyurethane foam system and the refrigerator based on it | |
| CN113150230B (en) | Thermal insulation polyurethane plastic and preparation method thereof | |
| CN112552474B (en) | Composite material for preparing low-density heat distribution pipeline by spray coating method | |
| CN108102346A (en) | A kind of flame retarded rigid polyurethane foams feedstock composition | |
| EP1138709A1 (en) | Process for the preparation of rigid foams based on isocyanate | |
| ES2910300T3 (en) | Procedure for the manufacture of open-cell rigid foams containing urethane groups and isocyanurate groups | |
| CN112521569A (en) | Production process for low-point horizontal casting polyurethane for heat-insulating pipeline | |
| CN109320679B (en) | Environment-friendly combined polyether for high-self-adhesion stainless steel freezer cabinet, preparation method and application | |
| EP3144333A1 (en) | A polyurethane composite element and the preparation process thereof | |
| CN106832212B (en) | Storage-type electric water heater polyurethane rigid foam material and preparation method thereof | |
| US12325804B2 (en) | Foaming material, and thermal insulation cabinet and method for preparing same | |
| KR102497290B1 (en) | Polyurethane laminate and preparation method thereof | |
| CN119529214A (en) | A composition for polyurethane foam material and its preparation method and application | |
| CN113801287A (en) | Polyether composition, polyurethane rigid foam using polyether composition as raw material and preparation method of polyurethane rigid foam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201023 |
|
| RJ01 | Rejection of invention patent application after publication |