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Spraying-free PMMA/ASA alloy resin composition with high thermal-oxidative stability and high heat resistance and preparation method thereof

An alloy resin and composition technology, applied in the field of polymer material modification, can solve the problems of poor compatibility between PMMA and ASA, the high heat resistance requirements of products are not mentioned, and the comprehensive mechanical properties are difficult to meet, etc. Application prospect and industrial value, high surface gloss, effect of improving heat-resistant temperature and thermo-oxidative stability

Active Publication Date: 2021-11-05
FINE BLEND POLYMER SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the poor compatibility of PMMA and ASA, its comprehensive mechanical properties are difficult to meet the needs of the automotive field; and the heat resistance of the usually prepared PMMA / ASA alloy is not high, or it cannot meet the conditions of long-term high temperature or strong sunlight exposure. The material can still maintain its excellent appearance
[0004] Chinese patent CN105419205A discloses a method for preparing a high-gloss spray-free PMMA / ASA alloy resin, but it does not mention the high heat resistance requirements of the product and cannot be used in environments with high heat resistance requirements
Chinese patent CN106832723A discloses a high heat-resistant and high-weather-resistant ASA / PMMA composite material and its preparation method. Although the heat-resistant and weather-resistant problems of the material are solved, it does not mention whether there will be defect problem

Method used

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  • Spraying-free PMMA/ASA alloy resin composition with high thermal-oxidative stability and high heat resistance and preparation method thereof
  • Spraying-free PMMA/ASA alloy resin composition with high thermal-oxidative stability and high heat resistance and preparation method thereof
  • Spraying-free PMMA/ASA alloy resin composition with high thermal-oxidative stability and high heat resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 55 parts of PMMA resin (brand: CM211, Chi Mei Company), 40 parts of ASA resin (brand: XC500, Kumho Petrochemical Company), and the heat-resistant compatibilizer is styrene-methyl methacrylate-N-phenylmaline 5 parts of tetrapolymers of imide-maleic anhydride (wherein the content of maleic anhydride is 7%, the content of N-phenylmaleimide is 15%, and the content of methyl methacrylate is 18%) , 2 parts of black masterbatch (EMI-100 of Jiayi Rong Polymer (Shanghai) Co., Ltd. as carrier, relative molecular mass is 40000, residual acrylonitrile is 3ppm, carbon black filling is 60%), antioxidant (168 / 1010) 0.3 parts, lubricant (silicone) 0.4 parts, weather resistance agent is 0.5 parts of 2-hydroxy-4 methoxybenzophenone, after mixing the above raw materials evenly, put them into the In the extruder, the processing temperature is 200-240°C, and the rotation speed is 400 rpm. The samples are obtained through extrusion and granulation. After the particles are dried, they are in...

Embodiment 2

[0040] 60 parts of PMMA resin (brand: CM205, Chi Mei Company), 30 parts of ASA resin (brand: 600N, Japanese UMG company), and the heat-resistant compatibilizer is the ternary copolymerization of styrene-methyl methacrylate-maleic anhydride (the content of maleic anhydride is 18%, the content of methyl methacrylate is 20%, brand: BP-356M, Jiayi Rong Polymer (Shanghai) Co., Ltd.) 15 parts, black masterbatch (relative molecular mass is 70000 SAN resin is as carrier, and acrylonitrile residue is 12ppm, and carbon black filling is 40%) 1.2 parts, antioxidant (168 / 1076) 1.0 part, lubricant (PETS) 1.0 part, weather resistance agent is phenyl salicylate 0.2 parts, after mixing the above raw materials evenly, put them into an extruder with an aspect ratio of 56:1, the processing temperature is 180-230°C, the speed is 600 rpm, the sample is obtained by extrusion granulation, the particles are dried and then injected into a specific spline for testing.

Embodiment 3

[0042] 30 parts of PMMA resin (brand: MF001, Mitsubishi Rayon Company), 50 parts of ASA resin (brand: 776S, Korean Styrolution Company), and the heat-resistant compatibilizer is styrene-methyl methacrylate-maleic anhydride Terpolymer (12% of maleic anhydride and 25% of methyl methacrylate) and quaternary of styrene-methyl methacrylate-N-phenylmaleimide-maleic anhydride Copolymer (wherein the content of maleic anhydride is 13%, the content of N-phenylmaleimide is 18%, the content of methyl methacrylate is 15%), the terpolymer and tetrapolymer The mixture is 20 parts, wherein the proportion of the terpolymer is 30%, that is, the usage amount of the terpolymer and the tetrapolymer are respectively 6 parts and 14 parts. Acrylonitrile residue is 5ppm, carbon black filling is 50%) 0.5 part, antioxidant 0.4 part, lubricant 0.3 part, weather resistance agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl ) 1.0 parts of benzotriazole, after mixing the above raw materials evenly, put them into...

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Abstract

The invention relates to a spraying-free PMMA / ASA alloy resin composition with high thermal oxidation stability and high heat resistance and a preparation method thereof. The alloy resin is prepared from the following components in parts by weight: 30 to 60 parts of polymethyl methacrylate (PMMA) resin, 30 to 50 parts of acrylonitrile-styrene-acrylate (ASA) resin, 5 to 20 parts of a heat-resistant compatilizer, 0.5 to 2.0 parts of black masterbatch, 0.2 to 1.0 part of an antioxidant, 0.2 to 1.0 part of a lubricant and 0.2 to 1.0 part of a weather-resistant agent. The preparation method comprises the following steps: uniformly mixing the components according to the content to obtain a premix, adding the premix into a double-screw extruder, and carrying out melt extrusion, cooling and granulating. Compared with the prior art, the PMMA / ASA alloy numerical composition prepared by the invention has excellent thermal oxidation stability, heat resistance temperature and surface gloss, has the advantages of simple preparation process, low cost and the like, and can be used on spraying-free devices with harsh use conditions.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and relates to a PMMA / ASA alloy resin composition with high thermal oxygen stability and high heat resistance without spraying and a preparation method. Background technique [0002] Polymethyl methacrylate (PMMA) resin, also known as plexiglass, has excellent optical properties, and the light transmittance can be as high as 92%. It also has excellent mechanical strength, good heat insulation, sound insulation, and good weather resistance , high gloss, strong tinting strength and scratch resistance, due to these remarkable characteristics, it is widely used in the automotive industry. ASA resin is a terpolymer of acrylonitrile, styrene, and acrylic ester. There is no unsaturated double bond in its structure, so its weather resistance is far superior to that of traditional ABS resin. In addition, ASA resin also has good impact resistance, coloring and chemical resistance. ASA resin i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L51/00C08L35/06C08L25/12C08K3/04
CPCC08L33/12C08L51/003C08L2205/035C08L2201/08C08L2205/08C08L35/06C08L25/12C08K3/04
Inventor 汤俊杰纪永鹏史鹏伟司胜仁段浩朱从山
Owner FINE BLEND POLYMER SHANGHAI CO LTD
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