CN111234442B - Wear-resistant ABS composite material and preparation method thereof - Google Patents
Wear-resistant ABS composite material and preparation method thereof Download PDFInfo
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- CN111234442B CN111234442B CN201811433249.6A CN201811433249A CN111234442B CN 111234442 B CN111234442 B CN 111234442B CN 201811433249 A CN201811433249 A CN 201811433249A CN 111234442 B CN111234442 B CN 111234442B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a wear-resistant ABS composite material and a preparation method thereof, wherein the wear-resistant ABS composite material consists of ABS, polyvinyl chloride, a wear-resistant material, an antioxidant and a lubricant, and the wear-resistant material is prepared by mixing nano molybdenum disulfide, polytetrafluoroethylene, a coupling agent A-172 and mica powder, and the friction coefficient of the ABS composite material can be greatly reduced and the wear resistance of the ABS composite material can be obviously improved by adding the wear-resistant ABS composite material into the ABS composite material.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a wear-resistant ABS composite material and a preparation method thereof.
Background
With the advance of light weight and cost reduction, metals have been replaced by various composite materials, and compared with metal elements, the composite materials have poorer wear resistance, so that the service life of the composite materials is shorter. At present, steering devices in the fields of automobile engines, cylinder piston parts, textile machinery, mining machinery and the like are all replaced by composite materials such as ABS, polyether ether tung oil and the like.
The ABS resin is an Acrylonitrile-Butadiene-Styrene copolymer, and the ABS is an acronym of Acrylonitrile Butadiene Styrene, and is a thermoplastic high polymer material which has high strength, good toughness and easy processing and molding. The method is used for preparing various parts such as instruments, electrics, electrical appliances and machinery. In order to improve the performance and grade of ABS materials and meet the requirements of final parts and customers, glass fibers or other materials are commonly used at present for filling, reinforcing and modifying. The conventional materials for wear resistance modification of ABS at present mainly comprise graphite, molybdenum disulfide and the like, but the addition amount of the graphite and molybdenum disulfide is generally large, so that some defects are brought to the ABS material: the viscosity and the density of the composite material are higher; secondly, the adhesion between the wear-resistant modifier and the ABS matrix is influenced; thirdly, the mechanical properties of the composite material are also obviously influenced, and the application is not facilitated.
Disclosure of Invention
Based on the wear-resistant ABS composite material, the wear-resistant material is used for modifying the ABS material, the wear-resistant material is formed by mixing nano molybdenum disulfide, polytetrafluoroethylene, a coupling agent and mica powder, and the components have synergistic effect, so that the wear resistance of the ABS composite material is obviously improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the wear-resistant ABS composite material is prepared from the following components in parts by weight:
the wear-resistant material is prepared by mixing nano molybdenum disulfide, polytetrafluoroethylene, a coupling agent A-172 and mica powder.
Further, the antioxidant is at least one of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), N' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine (antioxidant 1098) and tris [2, 4-di-tert-butylphenyl ] phosphite (antioxidant 168).
Further, the lubricant is at least one of polyethylene wax and N, N' -Ethylene Bis Stearamide (EBS).
Further, in the wear-resistant material, the mass ratio of the nano molybdenum disulfide to the polytetrafluoroethylene is 2: 1-4: 1, the addition amount of the mica powder is 5-10 times of the total weight of the nano molybdenum disulfide and the polytetrafluoroethylene, and the amount of the coupling agent A-172 is 1/5 of the total weight of the wear-resistant material.
Further, the preparation of the wear-resistant material comprises the following steps:
(1) heating and calcining the mica powder at 500-600 ℃ for 5-10 min, then heating to 800-900 ℃, continuing to heat for 15-30 min, and cooling;
(2) adding the coupling agent A-172, uniformly mixing, then adding the nano molybdenum disulfide and the polytetrafluoroethylene, and continuously mixing to obtain the wear-resistant material.
The invention also aims to provide a preparation method of the wear-resistant ABS composite material, which comprises the steps of mixing ABS, polyvinyl chloride, a wear-resistant material, an antioxidant and a lubricant at a high speed according to a ratio to obtain a uniform mixed material; and adding the uniform mixed material into an extruder, and performing melt extrusion granulation to obtain the wear-resistant ABS composite material.
Preferably, the temperature of the extruder from the feed opening to the die opening is 230 ℃, 270 ℃, 280 ℃, 290 ℃, 300 ℃, 310 ℃, 320 ℃ and 310 ℃, 320 ℃, the rotation speed of the extruder is 180-400 rpm, and the vacuum degree is-0.07-0.03 MPa.
When the nano molybdenum disulfide in the composition is subjected to phenomena of frictional heating, softening of the composite material and the like in the process of abrasion of the material, the nano molybdenum disulfide can stay on the surface of the material to form a transfer film, so that the friction coefficient of the composite material is effectively reduced. In addition, the lamellar structure of the mica in the wear-resistant material has a synergistic effect, so that the grinding head can be effectively prevented from being in direct contact with the surface of the composite material, the cutting effect in the friction process is reduced, and the material wear is reduced. Meanwhile, the mica powder is subjected to sectional calcination treatment, so that the specific surface area and the adsorption characteristic of the mica powder are improved, and then the coupling agent A-172 is added for stirring and mixing treatment, so that the surface activity of the mica powder is further improved; finally, the nano molybdenum disulfide and the polytetrafluoroethylene are added, so that the friction coefficient of the composite material can be greatly reduced by the prepared wear-resistant material. The components have synergistic effect, and the wear resistance of the ABS composite material is obviously improved.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the specific embodiments illustrated. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
(1) Heating and calcining 25 parts of mica powder at 500 ℃ for 10min, then heating to 800 ℃ for 30min, and cooling to 50 ℃; adding 6 parts of coupling agent A-172, stirring uniformly, adding 4 parts of nano molybdenum disulfide and 1 part of polytetrafluoroethylene, and continuously stirring to obtain the wear-resistant material.
(2) Weighing 100 parts of dry ABS, 5 parts of polyvinyl chloride, 20 parts of wear-resistant material, 0.05 part of antioxidant 1098, 0.05 part of antioxidant 168 and 0.2 part of lubricant EBS according to the weight parts, mixing, adding into an extruder, extruding by the extruder, cooling by water, and granulating. Wherein the processing temperature of the extruder is 220 ℃, 270 ℃, 280 ℃, 300 ℃, 310 ℃ and 310 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 180rpm, and the vacuum degree is-0.03 MPa.
Example 2
(1) Heating and calcining 15 parts of mica powder at 600 ℃ for 5min, heating to 900 ℃ for 15min, and cooling to 60 ℃; adding 3.6 parts of coupling agent A-172, stirring uniformly, adding 2 parts of nano molybdenum disulfide and 1 part of polytetrafluoroethylene, and continuously stirring to obtain the wear-resistant material.
(2) Weighing 100 parts of dry ABS, 10 parts of PVC, 10 parts of wear-resistant material, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168 and 0.5 part of lubricant polyethylene wax according to the weight part ratio, mixing, adding into an extruder, extruding by the extruder, and granulating after water cooling. Wherein the processing temperature of the extruder is 230 ℃, 280 ℃, 290 ℃, 310 ℃, 320 ℃ and 320 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 200rpm, and the vacuum degree is-0.07 MPa.
Example 3
(1) Heating and calcining 40 parts of mica powder at 500 ℃ for 10min, then heating to 800 ℃ for 30min, and cooling to 50 ℃; adding 8.8 parts of coupling agent A-172, stirring uniformly, adding 3 parts of nano molybdenum disulfide and 1 part of polytetrafluoroethylene, and continuously stirring to obtain the wear-resistant material.
(2) Weighing 100 parts of dry ABS, 8 parts of polyvinyl chloride, 15 parts of wear-resistant material, 0.1 part of antioxidant 1010, 0.2 part of antioxidant 168 and 0.1 part of lubricant polyethylene wax according to the weight part ratio, mixing, adding into an extruder, extruding by the extruder, and granulating after water cooling. Wherein the processing temperature of the extruder is 230 ℃, 280 ℃, 290 ℃, 310 ℃, 320 ℃ and 320 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 350rpm, and the vacuum degree is-0.05 MPa.
Example 4
(1) Heating and calcining 24 parts of mica powder at 550 ℃ for 8min, then heating to 850 ℃ for 20min, and cooling to 60 ℃; and adding 5.4 parts of coupling agent A-172, uniformly stirring, adding 2 parts of nano molybdenum disulfide and 1 part of polytetrafluoroethylene, and continuously stirring to obtain the wear-resistant material.
(2) Weighing 100 parts of dry ABS, 5 parts of polyvinyl chloride, 20 parts of wear-resistant material, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168 and 0.3 part of lubricant polyethylene wax according to the weight part ratio, mixing, adding into an extruder, extruding by the extruder, and granulating after water cooling. Wherein the processing temperature of the extruder is 230 ℃, 280 ℃, 290 ℃, 310 ℃, 320 ℃ and 320 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 400rpm, and the vacuum degree is-0.06 MPa.
Comparative example 1
Respectively weighing 100 parts of dry ABS, 5 parts of polyvinyl chloride, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168 and 0.3 part of lubricant polyethylene wax according to the weight ratio, mixing, adding into an extruder, extruding by the extruder, and granulating after water cooling. Wherein the processing temperature of the extruder is 230 ℃, 280 ℃, 290 ℃, 310 ℃, 320 ℃ and 320 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 400rpm, and the vacuum degree is-0.06 MPa.
Comparative example 2
Weighing 100 parts of dry ABS, 5 parts of polyvinyl chloride, 20 parts of mica powder, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168 and 0.3 part of lubricant polyethylene wax according to the weight part ratio, mixing, adding into an extruder, extruding by the extruder, cooling by water and granulating. Wherein the processing temperature of the extruder is 230 ℃, 280 ℃, 290 ℃, 310 ℃, 320 ℃ and 320 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 400rpm, and the vacuum degree is-0.06 MPa.
Comparative example 3
Weighing 100 parts of dry ABS, 5 parts of polyvinyl chloride, 20 parts of nano molybdenum disulfide, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168 and 0.3 part of lubricant polyethylene wax according to the weight part ratio, mixing, adding into an extruder, extruding by the extruder, cooling by water, and granulating. Wherein the processing temperature of the extruder is 230 ℃, 280 ℃, 290 ℃, 310 ℃, 320 ℃ and 320 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 400rpm, and the vacuum degree is-0.06 MPa.
Comparative example 4
Weighing 100 parts of dry ABS, 5 parts of polyvinyl chloride, 20 parts of polytetrafluoroethylene, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168 and 0.3 part of lubricant polyethylene wax according to the weight parts, mixing, adding into an extruder, extruding by the extruder, cooling by water, and granulating. Wherein the processing temperature of the extruder is 230 ℃, 280 ℃, 290 ℃, 310 ℃, 320 ℃ and 320 ℃ from the feed opening to the die orifice in sequence, the rotating speed of the main machine is 400rpm, and the vacuum degree is-0.06 MPa.
The test data of the ABS composite materials prepared in examples 1 to 4 and comparative examples 1 to 4 described above are shown in table 1 below:
table 1:
the calculation formula of the volumetric wear rate in table 1 above is:
in the formula: k-volumetric wear rate; delta m represents the quality difference of the sample before and after abrasion; ρ -sample density; n-load; l is the sliding friction distance.
As can be seen from the data in the table 1, after different base materials are used and the wear-resistant material compounded in the invention is added, the volume wear rate of the product is obviously reduced, namely the wear resistance of the composite material is improved. And according to comparison of comparative examples 1-4 and example 4, the components of the compounded wear-resistant material have synergistic effect, rather than simple superposition of the effects of the components, so that the wear resistance of the composite material is greatly improved. Therefore, the invention can meet the requirements of different performances according to the requirements of customers. Different heat conduction requirements of customers can be met, and the wear-resistant material can be applied to more wear-resistant materials.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The wear-resistant ABS composite material is characterized by being prepared from the following components in parts by weight:
100 parts of ABS (acrylonitrile-butadiene-styrene),
5-10 parts of polyvinyl chloride,
10-20 parts of a wear-resistant material,
0.1 to 0.3 part of antioxidant,
0.1-0.5 part of a lubricant;
the wear-resistant material is prepared by mixing nano molybdenum disulfide, polytetrafluoroethylene, a coupling agent A-172 and mica powder, and the preparation method of the wear-resistant material comprises the following steps:
(1) heating and calcining the mica powder at 500-600 ℃ for 5-10 min, then heating to 800-900 ℃, continuing to heat for 15-30 min, and cooling;
(2) adding the coupling agent A-172, uniformly mixing, then adding the nano molybdenum disulfide and the polytetrafluoroethylene, and continuously mixing to obtain the wear-resistant material.
2. The ABS composite material according to claim 1, wherein the antioxidant is at least one of pentaerythrityl tetrakis [ β - (3, 5-di-t-butyl-4-hydroxyphenyl) propionate ], N' -bis- (3- (3, 5-di-t-butyl-4-hydroxyphenyl) propionyl) hexanediamine, and tris [2, 4-di-t-butylphenyl ] phosphite.
3. The ABS composite of claim 1 wherein the lubricant is at least one of polyethylene wax, N' -ethylene bis stearamide.
4. The wear-resistant ABS composite material as claimed in claim 1, wherein in the wear-resistant material, the mass ratio of the nano molybdenum disulfide to the polytetrafluoroethylene is 2: 1-4: 1, the addition amount of the mica powder is 5-10 times of the total weight of the nano molybdenum disulfide and the polytetrafluoroethylene, and the amount of the coupling agent A-172 is 1/5 of the total weight of the wear-resistant material.
5. The preparation method of the wear-resistant ABS composite material as claimed in any one of claims 1 to 4, characterized in that ABS, polyvinyl chloride, the wear-resistant material, the antioxidant and the lubricant are mixed at high speed according to the proportion to obtain a uniform mixed material; and adding the uniform mixed material into an extruder, and performing melt extrusion granulation to obtain the wear-resistant ABS composite material.
6. The method as claimed in claim 5, wherein the temperatures of the extruder from the feeding opening to the mold opening are 230 ℃, 270 ℃ and 280 ℃, 280 ℃ and 290 ℃, 300 ℃ and 310 ℃, 310 ℃ and 320 ℃, the rotation speed of the extruder is 180-400 rpm, and the vacuum degree is-0.07-0.03 MPa.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206102A (en) * | 1976-09-15 | 1980-06-03 | Mobay Chemical Corporation | Method of producing polyurethanes with increased resistance to abrasion |
| CN1609141A (en) * | 2003-11-21 | 2005-04-27 | 赖剑英 | ABS engineering plastic alloy with high self-lubricating property and high wear resistance and its prepn process |
| CN106633591A (en) * | 2016-10-21 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | ABS (acrylonitrile butadiene styrene) composite material and method for preparing same |
| CN107325473A (en) * | 2017-08-08 | 2017-11-07 | 佛山市合宏泰业科技有限公司 | A kind of high-wearing feature composite |
| CN108164912A (en) * | 2017-12-25 | 2018-06-15 | 天津科技大学 | A kind of low abrasion scratch-resistant ABS material and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104884562B (en) * | 2012-12-21 | 2020-07-17 | 曙制动器工业株式会社 | Friction material |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206102A (en) * | 1976-09-15 | 1980-06-03 | Mobay Chemical Corporation | Method of producing polyurethanes with increased resistance to abrasion |
| CN1609141A (en) * | 2003-11-21 | 2005-04-27 | 赖剑英 | ABS engineering plastic alloy with high self-lubricating property and high wear resistance and its prepn process |
| CN106633591A (en) * | 2016-10-21 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | ABS (acrylonitrile butadiene styrene) composite material and method for preparing same |
| CN107325473A (en) * | 2017-08-08 | 2017-11-07 | 佛山市合宏泰业科技有限公司 | A kind of high-wearing feature composite |
| CN108164912A (en) * | 2017-12-25 | 2018-06-15 | 天津科技大学 | A kind of low abrasion scratch-resistant ABS material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 聚合物基复合材料摩擦磨损性能的研究进展;蔡立芳等;《润滑与密封》;20051130(第06期);第183-194页 * |
| 高光ABS/PMMA的耐磨性;许家友等;《塑料》;20121218(第06期);第23-25页 * |
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