Detailed Description
The invention will be further understood by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definition provided in the present disclosure, the definition of the term provided in the present disclosure controls.
As used herein, a feature that does not define a singular or plural form is also intended to include a plural form of the feature unless the context clearly indicates otherwise. It will be further understood that the term "prepared from …," as used herein, is synonymous with "comprising," including, "comprising," "having," "including," and/or "containing," when used in this specification means that the recited composition, step, method, article, or device is present, but does not preclude the presence or addition of one or more other compositions, steps, methods, articles, or devices. Furthermore, the use of "preferred," "preferably," "more preferred," etc., when describing embodiments of the present invention, is meant to refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. In addition, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
In order to solve the above problems, a first aspect of the present invention provides a PVC edge banding with good wear resistance, which is characterized in that: the anti-wear coating comprises, by weight, 75-125 parts of PVC resin, 10-30 parts of low-melting-point glass powder, 30-55 parts of an anti-wear agent, 3.0-6.0 parts of a heat stabilizer, 5-16 parts of a plasticizer and 0.3-1.0 part of a lubricant.
The addition of the low-melting-point glass powder can improve the chemical resistance, weather resistance and yellowing resistance of the PVC edge banding, and in some preferred embodiments, the low-melting-point glass powder is spherical, the crystal structure of the low-melting-point glass powder is rhombic, so that the glass powder has better lipophilicity and hydrophilicity, has excellent compatibility and dispersibility in the coating, can be better compatible with a polyethylene wax plasticizer, and enables the PVC edge banding to have better scratch resistance and hand feeling performance. In some more preferred embodiments, the low melting glass frit has a particle size of 5000 mesh.
In some preferred embodiments, the antiwear agent comprises at least one of alumina, silicon carbide, silicon nitride, aluminum nitride, diamond, titanium dioxide, silicon dioxide.
In order to reduce the cost, in some preferred embodiments, the antiwear agent comprises 25-50 parts of aluminum oxide and 5-15 parts of silicon carbide. In some more preferred embodiments, the weight ratio of the alumina to the silicon carbide is (2-3): 1.
in order to improve the comprehensive mechanical property of the PVC edge banding, in some preferred embodiments, the granularity of the aluminum oxide is 1000-3000 meshes, and more preferably 2000 meshes; the granularity of the silicon carbide is 1000-2000 meshes, and 1500 meshes is more preferable. Silicon carbide with too coarse a particle size can significantly reduce the physical properties of the sheet because too large silicon carbide is an impurity for PVC edge seals, while too coarse silicon carbide tends to wear the extruder screw and barrel. The mesh number of the alumina has great influence on the wear resistance and physical properties of the sheet, the alumina with large particle size has high wear resistance coefficient and good wear resistance, but can reduce the physical properties of the PVC resin; the alumina with the fine particle size can not obviously reduce the physical property of the PVC resin, is easy to disperse uniformly during mixing, does not generate large abrasion to a screw machine barrel of an extruder, but the smaller the particle size is, the smaller the abrasion resistance coefficient is, the abrasion resistance can be greatly reduced, and the effect of improving the abrasion resistance of the sheet can not be achieved.
In some preferred embodiments, the alumina is alpha-alumina, the alpha form being hexagonal closest-packed, Al3+The PVC edge banding has the advantages of large lattice energy, high melting point and high hardness, and can improve the hardness and the wear resistance of the PVC edge banding, and also can improve the thermal stability and the acid and alkali resistance of the PVC edge banding.
In some preferred embodiments, the silicon carbide is beta-silicon carbide, has a cubic crystal structure, belongs to a diamond crystal form, and is compounded with hexagonal closest-packed alpha-alumina, so that complementary advantages of different crystal structures can be realized, and the resistance of the PVC edge banding to friction modes from different types and different forces can be enhanced.
In some preferred embodiments, the thermal stabilizer comprises at least one of a calcium zinc composite stabilizer, a calcium barium composite stabilizer, and a barium zinc composite stabilizer.
In order to improve the thermal stability, light stability, initial colorability and color retention of the PVC edge banding, in some preferred embodiments, the heat stabilizer is a calcium zinc composite stabilizer. In some more preferred embodiments, the calcium zinc composite stabilizer has an intrinsic viscosity of 2 to 5dL/g at 25 ℃ in order to improve the uniform mixing of the calcium zinc composite stabilizer with the PVC resin.
In some preferred embodiments, the plasticizer comprises at least one of polyethylenes, oxidized polyethylenes, phthalates, aliphatic dibasic acid esters, fatty acid esters, benzenepolycarboxylic acid esters, polyol esters, epoxy hydrocarbons, alkyl sulfonates.
The addition of an antiwear agent can improve the hardness and abrasion resistance of the PVC resin, but the high hardness particles such as alumina and silicon carbide can hinder the fluidity and plasticity of the PVC resin. In order to solve the problem, in some preferred embodiments, the plasticizer comprises 5 to 15 parts of polyethylene wax and 0.2 to 1.0 part of oxidized polyethylene wax, and the polyethylene wax and the oxidized polyethylene wax have good lubricity and good compatibility with PVC, so that the secondary bond between molecules of PVC resin can be weakened, the mobility of molecular bonds of PVC resin can be increased, the crystallinity of the molecules of PVC resin can be reduced, the plasticity of the molecules of resin can be increased, the flexibility of the molecules of resin can be enhanced, and the processing is easy.
In order to reduce the time for uniformly mixing the polyethylene wax and the PVC resin and improve the efficiency and reduce the cost, in some preferred embodiments, the melt viscosity of the polyethylene wax at 120 ℃ is 900-1600 mm2/s。
In order to improve the dispersion uniformity of alumina and silicon carbide in the PVC edge sealing strip, in some preferred embodiments, the viscosity of the oxidized polyethylene wax at 140 ℃ is 150-300 cps, and the oxidized carboxyl functional group enables the molecular chain of the oxidized polyethylene wax to have a certain amount of carbonyl and hydroxyl groups, when the viscosity at 140 ℃ is 150-300 cps, the oxidized polyethylene wax has good compatibility with PVC resin in the raw material mixing and extruding process, and meanwhile, the binding property with alumina, silicon carbide or other inorganic oxide anti-wear agents is improved, if the viscosity is too low, the anti-wear agent particles are not favorably bound with the PVC resin, and if the viscosity is too high, the flowability is poor, and the dispersion uniformity is influenced. In some more preferable embodiments, the acid value of the oxidized polyethylene wax with the oxidized carboxyl functional group is 12-18 mg KOH/g, so that the oxidized polyethylene wax has excellent external lubricity, stronger internal lubrication effect and coupling effect, on one hand, the effect of hindering the movement of the PVC resin by the antiwear agent is reduced, and on the other hand, the uniform dispersion of the particles of the antiwear agent is promoted. Thereby improving the comprehensive mechanical property of the PVC edge banding.
In some preferred embodiments, the lubricant comprises at least one of stearic acid, calcium stearate, glyceryl stearate, paraffin wax.
The invention also provides a preparation method of the PVC edge banding with good wear resistance, which comprises the following steps: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Because the wear-resistant material is added, the traditional screw extruder can cause great wear to the screw during extrusion, and can damage a machine to cause production stop when the traditional screw extruder is used seriously, so the invention adopts the extruder which is processed by nitriding process to heat, extrude and granulate the screw.
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Examples
The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to the examples.
Example 1
Embodiment 1 provides a PVC edge banding with good wear resistance, which is prepared from 100 parts by weight of PVC resin, 20 parts by weight of low-melting-point glass powder, 40 parts by weight of an antiwear agent, 5 parts by weight of a heat stabilizer, 10.5 parts by weight of a plasticizer and 0.5 part by weight of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 10 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Embodiment 1 also provides a PVC edge banding with good wear resistance and a method for manufacturing the same, comprising the following steps: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Example 2
Embodiment 1 provides a PVC edge banding with good wear resistance, which is prepared from 125 parts by weight of PVC resin, 20 parts by weight of low-melting-point glass powder, 40 parts by weight of an antiwear agent, 5 parts by weight of a heat stabilizer, 10.5 parts by weight of a plasticizer and 0.5 part by weight of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 10 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Embodiment 1 also provides a PVC edge banding with good wear resistance and a method for manufacturing the same, comprising the following steps: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Example 3
Embodiment 1 provides a PVC edge banding with good wear resistance, which is prepared from 75 parts by weight of PVC resin, 20 parts by weight of low-melting-point glass powder, 40 parts by weight of an antiwear agent, 5 parts by weight of a heat stabilizer, 10.5 parts by weight of a plasticizer and 0.5 part by weight of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 10 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Embodiment 1 also provides a PVC edge banding with good wear resistance and a method for manufacturing the same, comprising the following steps: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Example 4
Embodiment 4 provides a PVC edge banding with good wear resistance, which is prepared from 100 parts by weight of PVC resin, 20 parts by weight of low-melting-point glass powder, 40 parts by weight of an anti-wear agent, 5 parts by weight of a heat stabilizer, 10.5 parts by weight of a plasticizer, and 0.5 part by weight of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 15 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Embodiment 4 also provides a PVC edge banding with good wear resistance and a method for manufacturing the same, including the steps of: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Example 5
Embodiment 5 provides a PVC edge banding with good wear resistance, which is prepared from 100 parts by weight of PVC resin, 20 parts by weight of low-melting-point glass powder, 40 parts by weight of an antiwear agent, 5 parts by weight of a heat stabilizer, 10.5 parts by weight of a plasticizer and 0.5 part by weight of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 10 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 8 parts of polyethylene wax and 1 part of oxidized polyethylene wax; what is needed isThe melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Embodiment 5 also provides a PVC edge banding with good wear resistance and a method for manufacturing the same, comprising the following steps: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Comparative example 1
The comparative example 1 provides a PVC edge banding with good wear resistance, and the preparation raw materials comprise, by weight, 100 parts of PVC resin, 20 parts of low-melting-point glass powder, 20 parts of an antiwear agent, 5 parts of a heat stabilizer, 10.5 parts of a plasticizer and 0.5 part of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 15 parts of alpha-alumina and 5 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Comparative example 1 also provides a PVC edge banding with good wear resistance and a method for making the same, comprising the steps of: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Comparative example 2
Comparative example 2 provides a PVC edge banding with good wear resistance, and the preparation raw materials comprise, by weight, 100 parts of PVC resin, 20 parts of low-melting-point glass powder, 40 parts of an antiwear agent, 5 parts of a heat stabilizer, 10.5 parts of a plasticizer and 0.5 part of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent is 40 parts of alpha-alumina; the alpha-alumina has a particle size of 2000 meshes, is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Comparative example 2 also provides a PVC edge banding with good wear resistance and a method for making the same, comprising the steps of: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Comparison ofExample 3
Comparative example 3 provides a PVC edge banding with good wear resistance, and the preparation raw materials comprise, by weight, 100 parts of PVC resin, 20 parts of low-melting-point glass powder, 40 parts of an antiwear agent, 5 parts of a heat stabilizer, 10.5 parts of a plasticizer and 0.5 part of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 10 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 5000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 200cps at 140 deg.C, a wax acid value of 15mg KOH/g, and is available from Honeywell, USA under the trade name of A-C629.
The lubricant is stearic acid.
Comparative example 3 also provides a PVC edge banding with good wear resistance and a method for making the same, comprising the steps of: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Comparative example 4
Comparative example 4 provides a PVC edge banding with good wear resistance, and the preparation raw materials comprise, by weight, 100 parts of PVC resin, 20 parts of low-melting-point glass powder, 40 parts of an antiwear agent, 5 parts of a heat stabilizer, 10.5 parts of a plasticizer and 0.5 part of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 10 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer is 10.5 parts of polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2Per s, from Pasf, Germany, model Luwax A wax.
The lubricant is stearic acid.
Comparative example 4 also provides a PVC edge strip with good wear resistance and a method of making the same, comprising the steps of: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Comparative example 5
Comparative example 5 provides a PVC edge banding with good wear resistance, which is prepared from 100 parts by weight of PVC resin, 20 parts by weight of low-melting-point glass powder, 40 parts by weight of an antiwear agent, 5 parts by weight of a heat stabilizer, 10.5 parts by weight of a plasticizer and 0.5 part by weight of a lubricant.
The PVC resin is purchased from Henan aerospace chemical Co., Ltd and is of SG-5.
The low-melting-point glass powder is spherical, has a rhombic crystal structure, is purchased from the optimized chemical engineering technology Limited company in Foshan City, and has the model of BM-02.
The antiwear agent comprises 30 parts of alpha-alumina and 10 parts of beta-silicon carbide; the grain diameter of the alpha-alumina is 2000 meshes, and the alpha-alumina is purchased from Zhengzhou Xinli wear-resistant material Co., Ltd, and has the model of XL-10; the beta-silicon carbide has a particle size of 1500 meshes and is available from Dongguan Xubao abrasive materials Co.
The heat stabilizer is a calcium-zinc composite stabilizer, has the intrinsic viscosity of 3-4dL/g at 25 ℃, and is purchased from Jiangsu Bingpu auxiliary agent Co., Ltd, model 401.
The plasticizer comprises 10 parts of polyethylene wax and 0.5 part of oxidized polyethylene wax; the melt viscosity of the polyethylene wax at 120 ℃ is 950-1550 mm2(ii) as purchased from basf, germany, model Luwax a wax; the oxidized polyethylene wax has a viscosity of 375cps at 140 deg.C, a wax acid number of 15mg KOH/g, and is available from Honeywell, USA under the trade name A-C629A.
The lubricant is stearic acid.
Comparative example 5 also provides a PVC edge strip with good wear resistance and a method of making the same, comprising the steps of: weighing the raw materials according to the formula, mixing, heating, extruding and granulating by using an extruder with a screw rod subjected to nitriding process, and then molding to obtain the PVC edge sealing strip with good wear resistance.
Evaluation of Performance
1. Abrasion resistance test
The PVC edge banding prepared in the above examples and comparative examples is tested for wear resistance according to GB/T17657-2013 standard, and if the PVC edge banding is grinded for 40 circles and no bottom exposure occurs, the wear resistance is good and is marked as qualified, otherwise, the PVC edge banding is marked as unqualified, and the test results are shown in Table 1.
2. Tensile Strength test
The PVC edge banding prepared in the above examples and comparative examples is subjected to tensile property test according to GB/T1040.2-2006; the test results are shown in Table 1.
3. Flexural Strength test
The PVC edge banding prepared in the above examples and comparative examples is subjected to bending performance test according to GB/T9341-2008, and the test results are shown in Table 1.
4. Impact strength test
The PVC edge strips prepared in the above examples and comparative examples were tested for impact strength according to GB/T1043.1-2008 and the results are shown in Table 1.
TABLE 1
According to the embodiments and the comparative examples, the invention provides the PVC edge banding with good wear resistance and the preparation thereof, and the prepared edge banding has excellent wear resistance, tensile strength, bending strength and impact strength.
Finally, it should be understood that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.