PMMA/ASA alloy material with high heat resistance and high black brightness and preparation method and application of PMMA/ASA alloy material
An alloy material, high heat resistance technology, applied in the field of polymer materials, can solve the problems of insufficient heat distortion temperature, scratch resistance and insufficient black brightness, and achieve the effect of improving scratch resistance
Active Publication Date: 2020-09-22
DONGGUAN HONOUR E P
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a PMMA / ASA alloy material with high heat resistance and high black brightness and its Preparation method and application, it selects ASA rubber powder with moderate particle size and glue content, and then uses specific dyeing agent to solve the problem of black brightness
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preparation example Construction
[0030] A preparation method of a PMMA / ASA alloy material with high heat resistance and high blackness, comprising the following steps:
[0031] Step 1: Get high molecular weight PMMA, antioxidant 1076, antioxidant 168, UV-5411, UV-P, dyestuff, carbon black, Molybdenum disulfide and high-molecular-weight polyethylene wax are put into the twin-screw extruder after being stirred by a high-speed mixer, and the pellets are pumped at 240 ° C, and the pumped out masterbatch of additives is used for later use;
[0032] Step 2: Quantitatively take polymethyl methacrylate (PMMA) resin, acrylonitrile-styrene-acrylate copolymer (ASA rubber powder) and the above-mentioned additive masterbatch, and feed them into the twin-screw extruder through the loss-in-weight feeding system The high heat resistance, high black and bright PMMA / ASA alloy material of the present invention is obtained by pumping pellets at 230°C.
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Abstract
The invention discloses a PMMA/ASA alloy material with high heat resistance and high black brightness and a preparation method and application thereof. The PMMA/ASA alloy material is prepared from thefollowing components in parts by weight: polymethyl methacrylate (PMMA) resin, acrylonitrile-styrene-acrylate copolymer (ASA rubber powder), a heat-resisting agent, an antioxidant, a light stabilizer, an anti-scraping agent and a coloring agent. According to the PMMA/ASA alloy material prepared through the method, HDT can reach 95 DEG C or above and is improved by 20 DEG C or above compared withmature materials on the market, the surface gloss is basically not reduced, the blackness L value is 22.5, and the effect of piano black can be achieved. Meanwhile, the scratch resistance is also obviously improved, and a five-finger scratch test and a surface wear resistance test can be passed.
Description
technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PMMA / ASA alloy material with high heat resistance and high black brightness and its preparation method and application. Background technique [0002] In recent years, high-black and high-gloss automotive interior and exterior decorations have gradually become popular among consumers. Now most of the plastic parts are black and bright by spraying paint on the surface, but the cost of painting is high and a large amount of organic solvents are used in the spraying process, causing serious pollution to the environment. Therefore, high-gloss spray-free polymer materials have been gradually developed. Among them, PMMA / ASA alloy is currently the most valuable material. Because of its weather resistance, high gloss and high hardness, it has been used in automobile grilles, rearview mirrors and There are applications in parts such as tail fins. However, the existing PMMA / AS...
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IPC IPC(8): C08L33/12C08L51/04C08L23/06C08K13/02C08K3/30C08K3/04C08K5/134C08K5/526C08K5/3475B60R19/52
CPCC08L33/12B60R19/52C08L2205/035C08L2205/025C08K2201/014C08K2003/3009C08L2201/08B60R2019/525C08L51/04C08L23/06C08K13/02C08K3/30C08K3/04C08K5/1345C08K5/526C08K5/3475
Inventor 祁博曹建伟马旭辉王建平迟胜南蒙学阳
Owner DONGGUAN HONOUR E P
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