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Lightweight, scratch-resistant and wear-resistant PMMA alloy material and preparation method thereof

An alloy material and scratch-resistant technology, which is applied in the field of PMMA alloy material and its preparation, can solve the problems of reducing surface hardness and scratch resistance, increasing the density of PMMA alloy material itself, so as to improve rigidity and heat resistance, and improve scratch resistance Injury effect, the effect that the specific gravity is low

Pending Publication Date: 2021-12-07
华合新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such an alloying scheme has an obvious limitation, that is, the surface hardness of the obtained PMMA alloy material is reduced, scratch resistance, wear resistance, etc. have been seriously affected, while the existing PMMA surface modification technology scheme (organic silicon additives) can only improve the scratch resistance of the material accordingly. In CN 109401161A, a compound system of fluororesin / silicone powder is used to improve the milk scratch properties of PMMA alloy materials. In CN 111154210A, a similar The compound system of silicone rubber / silicone additives, the small molecular layer formed by the migration of silicone additives in the above scheme can effectively deal with low-load, low-level scratch tests such as pencil scratches and cross scratches. , but there is nothing that can be done for high-load, high-reciprocation wear resistance tests; CN 112552629A adopts different inorganic fumed alumina solutions, but this will undoubtedly increase the density of the PMMA alloy material itself
With the promotion and application of PMMA alloy materials in automotive interior parts, not only the scratch resistance of the material, but also other characteristic indicators such as light weight, VOC, scratch resistance and other requirements cannot be ignored, and the existing technical solutions are undoubtedly Therefore, it is still a research field of great practical significance how to synergistically improve the scratch resistance and wear resistance of PMMA alloy materials without increasing or even reducing weight.

Method used

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  • Lightweight, scratch-resistant and wear-resistant PMMA alloy material and preparation method thereof
  • Lightweight, scratch-resistant and wear-resistant PMMA alloy material and preparation method thereof
  • Lightweight, scratch-resistant and wear-resistant PMMA alloy material and preparation method thereof

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Effect test

Embodiment 1

[0037] Take by weighing natural fiber, natural vegetable oil fiber surface treatment agent respectively by the embodiment 1 data shown in table 1, natural vegetable oil fiber surface treatment agent is added in the glass container containing 300ml high-concentration ethanol (90%), adjust The temperature of the water bath is 85°C, ultrasonic emulsification and dispersion for 20 minutes; then put the surface treatment agent and natural fiber together into the high-speed mixing mixer, and stir at a high speed of 300 rpm for 10 minutes, so that the surface of the natural fiber can be evenly distributed. cladding.

[0038] Take by weighing PMMA resin, ASA terpolymer, interfacial compatibilizer by the embodiment 1 data shown in table 1, be placed in the main feeding bin of a conical single-screw extruder of high torque after mixing , into the barrel of the extruder through the feeding screw; the surface-treated natural fiber is placed in the side feeding bin of the extruder, and add...

Embodiment 2

[0040] Take by weighing natural fiber, natural vegetable oil fiber surface treatment agent respectively by the embodiment 2 data shown in table 1, natural vegetable oil fiber surface treatment agent is added in the glass container that contains 300ml high-concentration ethanol (90%), adjust The temperature of the water bath is 85°C, ultrasonic emulsification and dispersion for 20 minutes; then put the surface treatment agent and natural fiber together into the high-speed mixing mixer, and stir at a high speed of 300 rpm for 10 minutes, so that the surface of the natural fiber can be evenly distributed. cladding.

[0041] Take by weighing PMMA resin, ASA terpolymer, interfacial compatibilizer by the embodiment 1 data shown in table 1, be placed in the main feeding bin of a conical single-screw extruder of high torque after mixing , into the barrel of the extruder through the feeding screw; the surface-treated natural fiber is placed in the side feeding bin of the extruder, and ...

Embodiment 3

[0045] Take by weighing natural fiber, natural vegetable oil fiber surface treatment agent respectively by the embodiment 3 data shown in table 1, natural vegetable oil fiber surface treatment agent is added in the glass container containing 300ml high-concentration ethanol (90%), adjust The temperature of the water bath is 85°C, ultrasonic emulsification and dispersion for 20 minutes; then put the surface treatment agent and natural fiber together into the high-speed mixing mixer, and stir at a high speed of 300 rpm for 10 minutes, so that the surface of the natural fiber can be evenly distributed. cladding.

[0046] Take by weighing PMMA resin, ASA terpolymer, interfacial compatibilizer by the embodiment 1 data shown in table 1, be placed in the main feeding bin of a conical single-screw extruder of high torque after mixing , into the barrel of the extruder through the feeding screw; the surface-treated natural fiber is placed in the side feeding bin of the extruder, and add...

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Abstract

The invention relates to a lightweight, scratch-resistant and wear-resistant PMMA alloy material and a preparation method thereof. The lightweight, scratch-resistant and wear-resistant PMMA alloy material is specifically composed of the following raw materials in parts by weight: 40-80 parts of PMMA resin, 10-30 parts of an ASA terpolymer, 15-30 parts of natural fibers, 1-5 parts of an interface compatibilizer and 0.5-3 parts of a natural plant oil fiber surface treating agent. The PMMA alloy material has the beneficial effects: the added natural fibers have excellent characteristics of low gloss, wear resistance, low density and the like, and are supplemented with the specific surface treating agent and the specific interface compatibilizer, so that the key appearance characteristics of glossiness, scratch resistance, wear resistance and the like of the PMMA-based composite material are significantly improved on the premise of reducing the weight by 15-20%.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a lightweight, scratch-resistant and wear-resistant PMMA alloy material and a preparation method thereof. Background technique [0002] With the continuous development and improvement of current material living standards, people's requirements for materials used in work and living environments are becoming more and more diverse, which puts forward high-performance and multi-functional requirements for current polymer materials. higher requirement. However, due to the limitations of their own chemical structure and material properties, polymer materials often cannot cover the above material requirements well. Therefore, alloying and blending polymers with different properties has become one of the simple and efficient solutions. . [0003] Polymethyl methacrylate (PMMA), also known as acrylic, has good transparency, chemical stability and weather resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L51/04C08L97/00D06M13/224D06M101/04
CPCC08L33/12D06M13/2243C08L2205/16D06M2101/04C08L51/04C08L97/005
Inventor 徐凯华徐小虎王凡张欣付飞管卫华
Owner 华合新材料科技股份有限公司
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