CN114213830A - Wear-resistant PC/ABS material and preparation method thereof - Google Patents
Wear-resistant PC/ABS material and preparation method thereof Download PDFInfo
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- CN114213830A CN114213830A CN202111568032.8A CN202111568032A CN114213830A CN 114213830 A CN114213830 A CN 114213830A CN 202111568032 A CN202111568032 A CN 202111568032A CN 114213830 A CN114213830 A CN 114213830A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
Abstract
The invention discloses a wear-resistant PC/ABS material and a preparation method thereof. The material comprises the following raw materials in parts by weight: 80-100 parts of PC, 20-30 parts of ABS, 1-3 parts of wear-resisting agent, 1-2 parts of filler, 1-2 parts of lubricant and 1-3 parts of compatilizer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent. The wear-resistant material disclosed by the invention is formed by combining PC and ABS, adding the wear-resistant agent, improving the wear-resistant property of the material, and improving the overall property of the material through the filler.
Description
Technical Field
The invention relates to a wear-resistant PC/ABS material and a preparation method thereof, belonging to the technical field of plastics.
Background
The PC/ABS alloy material has wide application in the industries of automobiles, household appliances, communication, IT and the like due to excellent comprehensive performance, and particularly, the PC/ABS alloy material is widely applied in the automobile industry along with the rapid development of the automobile industry and the development trend of light weight of automobiles and steel replacement by plastics in recent years.
The PC resin is polycarbonate resin, which can form performance complementation with ABS resin to a certain extent, and although the PC resin and the ABS resin are made into PC/ABS alloy, the PC/ABS alloy has good low-temperature impact property, formability, heat distortion temperature and light stability, the problem of wear resistance of the PC/ABS alloy still needs to be solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a wear-resistant PC/ABS material and a preparation method thereof.
The invention is realized by the following technical scheme:
a wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 80-100 parts of PC, 20-30 parts of ABS, 1-3 parts of wear-resisting agent, 1-2 parts of filler, 1-2 parts of lubricant and 1-3 parts of compatilizer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent.
In the wear-resistant PC/ABS material, the weight ratio of rubber particles to glass fibers in the wear-resistant agent is 2-3: 1.
The wear-resistant PC/ABS material is characterized in that the filler is modified quartz, and the modified quartz is obtained by the following steps: putting quartz and glass fiber into sulfuric acid solution, carrying out ultrasonic treatment for 20-30min, filtering, adding silane coupling agent and water again, carrying out ball milling, standing ball milling liquid, removing upper-layer liquid, and drying at the temperature of 100-120 ℃ to obtain modified quartz.
The wear-resistant PC/ABS material is characterized in that the weight part of sulfuric acid in the sulfuric acid solution is 30-50%.
The wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 30-50 parts of quartz, 10-15 parts of glass fiber and 1-3 parts of silane coupling agent.
The lubricant is zinc stearate or magnesium stearate.
The compatilizer is styrene-acrylonitrile copolymer.
The preparation method of the wear-resistant PC/ABS material comprises the following steps: PC, ABS, a wear-resistant agent, a filler, a lubricant and a compatilizer are physically blended and then extruded by a double-screw extruder for granulation to obtain the wear-resistant PC/ABS material.
The invention achieves the following beneficial effects:
the wear-resistant material disclosed by the invention is formed by combining PC and ABS, adding the wear-resistant agent, improving the wear-resistant property of the material, and improving the overall property of the material through the filler.
According to the invention, rubber particles and glass fibers are mixed, the rubber has wear resistance, the strength of the rubber is improved after the glass fibers are added, the rubber particles and the glass fibers are uniformly mixed under high-speed mixing, and then are further mixed through extrusion granulation, and meanwhile, the mixing stability is improved.
According to the invention, the modified quartz is used as a filler, the modified quartz is treated by sulfuric acid through quartz and glass fiber, and then is adsorbed on the surface of the glass fiber through a silane coupling agent, so that the compatibility of the quartz is improved, and meanwhile, the quartz also plays a supporting role, thereby improving the overall strength of the material.
Drawings
Fig. 1 is a photograph of the plastic panels prepared in example 3 and comparative example 1 after abrasion.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
A wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 80 parts of PC, 20 parts of ABS, 3 parts of a wear-resisting agent, 2 parts of a filler, 2 parts of zinc stearate and 3 parts of a styrene-acrylonitrile copolymer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent.
Wherein the weight ratio of the rubber particles to the glass fibers is 3: 1.
The filler is modified quartz, and the modified quartz is obtained by the following steps: putting quartz and glass fiber into sulfuric acid solution, carrying out ultrasonic treatment for 20-30min, filtering, adding silane coupling agent and water again, carrying out ball milling, standing ball milling liquid, removing upper-layer liquid, and drying at the temperature of 100-120 ℃ to obtain modified quartz. Wherein the weight portion of the sulfuric acid in the sulfuric acid solution is 30-50%. The weight parts of the raw materials are respectively as follows: 30 parts of quartz, 10 parts of glass fiber and 1 part of silane coupling agent.
A preparation method of a wear-resistant PC/ABS material comprises the following steps: PC, ABS, a wear-resistant agent, a filler, a lubricant and a compatilizer are physically blended and then extruded by a double-screw extruder for granulation to obtain the wear-resistant PC/ABS material.
Example 2
A wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 100 parts of PC, 30 parts of ABS, 1 part of wear-resisting agent, 1 part of filler, 1 part of magnesium stearate and 1 part of styrene-acrylonitrile copolymer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent.
Wherein the weight ratio of the rubber particles to the glass fibers is 2: 1.
The filler is modified quartz, and the modified quartz is obtained by the following steps: putting quartz and glass fiber into sulfuric acid solution, carrying out ultrasonic treatment for 20-30min, filtering, adding silane coupling agent and water again, carrying out ball milling, standing ball milling liquid, removing upper-layer liquid, and drying at the temperature of 100-120 ℃ to obtain modified quartz. Wherein the weight portion of the sulfuric acid in the sulfuric acid solution is 30-50%. The weight parts of the raw materials are respectively as follows: 50 parts of quartz, 15 parts of glass fiber and 3 parts of silane coupling agent.
A preparation method of a wear-resistant PC/ABS material comprises the following steps: PC, ABS, a wear-resistant agent, a filler, a lubricant and a compatilizer are physically blended and then extruded by a double-screw extruder for granulation to obtain the wear-resistant PC/ABS material.
Example 3
A wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 90 parts of PC, 24 parts of ABS, 2 parts of a wear-resisting agent, 1 part of a filler, 1 part of zinc stearate and 2 parts of a styrene-acrylonitrile copolymer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent.
Wherein the weight ratio of the rubber particles to the glass fibers is 2: 1.
The filler is modified quartz, and the modified quartz is obtained by the following steps: putting quartz and glass fiber into sulfuric acid solution, carrying out ultrasonic treatment for 20-30min, filtering, adding silane coupling agent and water again, carrying out ball milling, standing ball milling liquid, removing upper-layer liquid, and drying at the temperature of 100-120 ℃ to obtain modified quartz. Wherein the weight portion of the sulfuric acid in the sulfuric acid solution is 30-50%. The weight parts of the raw materials are respectively as follows: 40 parts of quartz, 12 parts of glass fiber and 2 parts of silane coupling agent.
A preparation method of a wear-resistant PC/ABS material comprises the following steps: PC, ABS, a wear-resistant agent, a filler, a lubricant and a compatilizer are physically blended and then extruded by a double-screw extruder for granulation to obtain the wear-resistant PC/ABS material.
Comparative example 1
A wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 90 parts of PC, 24 parts of ABS, 1 part of filler, 1 part of zinc stearate and 2 parts of styrene-acrylonitrile copolymer. The rest is the same as in example 3.
Comparative example 2
A wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 90 parts of PC, 24 parts of ABS, 2 parts of rubber particles and glass fibers, 1 part of zinc stearate and 2 parts of styrene-acrylonitrile copolymer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent. The rest is the same as in example 3.
Comparative example 3
A wear-resistant PC/ABS material comprises the following raw materials in parts by weight: 90 parts of PC, 24 parts of ABS, 2 parts of a wear-resisting agent, 1 part of zinc stearate and 2 parts of styrene-acrylonitrile copolymer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent. The rest is the same as in example 3.
The plastic particles in the examples and comparative examples were subjected to performance tests, and the specific results are shown in table 1.
TABLE 1 Plastic particle Performance test results
| Example 1 | Example 1 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Tensile strength MPa | 58.3 | 61.5 | 62.7 | 52.5 | 55.6 | 51.6 |
| Bending strength MPa | 81.2 | 84.8 | 85.4 | 75.6 | 79.2 | 74.5 |
| Flexural modulus MPa | 2500 | 2500 | 2400 | 2000 | 2200 | 2000 |
| Impact strength kJ/m of cantilever beam notch2 | 53.8 | 52.6 | 54.7 | 43.5 | 47.3 | 41.8 |
| Abrasion loss mg | 3.2 | 3.1 | 3.1 | 6.9 | 4.6 | 3.1 |
Through table 1, compared with comparative example 1, the plastic particles obtained by adding the wear-resistant agent in examples 1, 2 and 3 have good wear resistance, and through comparison of comparative example 2, the plastic particles obtained by processing the rubber particles and the glass fibers in examples 1, 2 and 3 are used as the wear-resistant agent, so that the compatibility with PC and ABS is good, and the performance is improved on the whole compared with the case of directly adding the rubber particles and the glass fibers; compared with comparative example 3, the plastic particles obtained by the examples 1, 2 and 3 with the added filler have good strength.
In fig. 1, a represents the plastic panel prepared in example 3 and b represents the plastic panel prepared in comparative example 1, and it can be seen from the figure that the abrasion resistance of example 3 is significantly better than that of comparative example 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A wear-resistant PC/ABS material is characterized by comprising the following raw materials in parts by weight: 80-100 parts of PC, 20-30 parts of ABS, 1-3 parts of wear-resisting agent, 1-2 parts of filler, 1-2 parts of lubricant and 1-3 parts of compatilizer; the anti-wear agent is obtained by the following steps: mixing rubber particles and glass fibers in a shearing machine at a high speed to obtain a mixture, and extruding and granulating the mixture at the temperature of 230 ℃ and 280 ℃ to obtain the wear-resistant agent.
2. A wear resistant PC/ABS material according to claim 1 wherein the weight ratio of rubber particles to glass fibers in the wear resistant agent is 2-3: 1.
3. A wear resistant PC/ABS material according to claim 1, characterized in that the filler is modified quartz, which is obtained by: putting quartz and glass fiber into sulfuric acid solution, carrying out ultrasonic treatment for 20-30min, filtering, adding silane coupling agent and water again, carrying out ball milling, standing ball milling liquid, removing upper-layer liquid, and drying at the temperature of 100-120 ℃ to obtain modified quartz.
4. A wear resistant PC/ABS material according to claim 3 wherein the weight fraction of sulfuric acid in the sulfuric acid solution is 30-50%.
5. The wear-resistant PC/ABS material as claimed in claim 3, wherein the raw materials in parts by weight are: 30-50 parts of quartz, 10-15 parts of glass fiber and 1-3 parts of silane coupling agent.
6. A wear resistant PC/ABS material according to claim 1 wherein the lubricant is zinc stearate or magnesium stearate.
7. A wear resistant PC/ABS material in accordance with claim 1 wherein the compatibilizer is styrene-acrylonitrile copolymer.
8. The process for the preparation of a wear resistant PC/ABS material according to any of the claims 1-7, characterized by the following steps: PC, ABS, a wear-resistant agent, a filler, a lubricant and a compatilizer are physically blended and then extruded by a double-screw extruder for granulation to obtain the wear-resistant PC/ABS material.
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