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Modified acrylate polymer composition

A polymethyl methacrylate and polymer technology, applied in the field of polymer materials, can solve the problems of difficult to meet comprehensive mechanical properties and poor compatibility, and achieve high impact resistance, good application prospects, and high surface gloss The effect of degree and weather resistance

Active Publication Date: 2021-05-04
CHINA CHEM TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor compatibility of PMMA and ASA, its comprehensive mechanical properties are difficult to meet, especially the standard requirements of the automotive industry.

Method used

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  • Modified acrylate polymer composition
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  • Modified acrylate polymer composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The composition of the modified PMMA / ASA polymer composition is shown in Table 1 below.

[0044] According to the different weight and number ratios in the following table 1, the following raw material components were weighed respectively: PMMA resin, ASA rubber powder, MBS resin, compatibilizer B, magnesium stearate and processing aid; and carried out in a high-speed mixer Premix for 5 minutes to obtain a premix. Wherein, the weight-average molecular weight of the PMMA resin is 50000g / mol; the ASA rubber powder is obtained by agglomeration and drying of an emulsion with a latex particle size (D50) of 300nm, and the bulk density of the rubber powder is 0.35g / cm 3 , the rubber powder particle size (D50) is 100 μm, the rubber phase content is 60wt%, the mass ratio of the polybutylacrylate core layer and the styrene-acrylonitrile shell layer is 1:0.6, and the rubber crosslinking degree is 75%; MBS resin is obtained by emulsion agglomeration drying of 300nm by latex partic...

Embodiment 2

[0047] The composition of the modified PMMA / ASA polymer composition is shown in Table 1 below.

[0048] According to the different weight and number ratios in the following table 1, the following raw material components were weighed respectively: PMMA resin, ASA rubber powder, MBS resin, compatibilizer B, magnesium stearate and processing aid; and carried out in a high-speed mixer Premix for 5 minutes to obtain a premix. Wherein, the weight-average molecular weight of the PMMA resin is 150,000 g / mol; the ASA powder is obtained by agglomeration and drying of an emulsion with a latex particle size (D50) of 100 nm, and the bulk density of the powder is 0.30 g / cm 3 , the rubber powder particle size (D50) is 50 μm, the rubber phase content is 40wt%, the mass ratio of the polybutylacrylate core layer and the styrene-acrylonitrile shell layer is 1:0.3, and the rubber crosslinking degree is 80%; MBS resin is obtained by emulsion agglomeration drying of 100nm by latex particle diamete...

Embodiment 3

[0051] According to the different weight and number ratios in the following table 1, the following raw material components were weighed respectively: PMMA resin, ASA rubber powder, MBS resin, compatibilizer B, magnesium stearate and processing aid; and carried out in a high-speed mixer Premix for 5 minutes to obtain a premix. Wherein, the weight-average molecular weight of the PMMA resin is 2,000,000 g / mol; the ASA rubber powder is obtained by agglomeration and drying of an emulsion with a latex particle size (D50) of 500 nm, and the bulk density of the rubber powder is 0.40 g / cm 3 , the rubber powder particle size (D50) is 200 μm, the rubber phase content is 80wt%, the mass ratio of the polybutylacrylate core layer and the styrene-acrylonitrile shell layer is 1:1, and the rubber crosslinking degree is 80%; MBS resin is obtained by emulsion agglomeration and drying of 500nm by latex particle diameter (D50). The molar ratio of the ester is 6:4, and the rubber phase content in ...

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Abstract

The invention provides a modified PMMA / ASA polymer composition. The modified PMMA / ASA polymer composition is prepared from the following components in parts by weight: 30-60 parts of PMMA; 10-20 parts by weight of a toughening agent; 5-10 parts by weight of a compatilizer A; 0.5-2 parts by weight of a compatilizer B; 1-5 parts by weight of an anti-scratch agent; and 0.5-6 parts by weight of a processing aid. The invention also provides a preparation method of the modified PMMA / ASA polymer composition. The PMMA / ASA / MBS alloy resin composition with greatly improved impact strength, excellent scratch resistance, good surface gloss and good weather resistance is obtained by introducing two compatilizers with a synergistic effect.

Description

technical field [0001] The present disclosure relates to the field of polymer materials, specifically an acrylic polymer composition PMMA / ASA / MBS and a preparation method thereof. Background technique [0002] Polymethylmethacrylate (poly(methylmethacrylate), PMMA for short), also known as acrylic or plexiglass, has excellent optical properties, and its transparency can be as high as 92%. In addition, it has excellent weather resistance, mechanical strength, good thermal and acoustic insulation, high gloss, strong tinting strength and scratch resistance. In the automotive field, PMMA resin can be used in window glass, cover, instrument glass, lamps, signs and other components. [0003] ASA resin is an impact-modified resin copolymerized by terpolymers such as styrene, acrylonitrile and acrylic rubber. It has good mechanical and physical properties. The structure of ASA and ABS is similar, and it retains ABS as engineering. Excellent mechanical and physical properties of pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L51/04C08L83/04C08K13/02C08K3/04C08K5/5425C08K5/134C08K5/103C08K5/526C08K5/20
CPCC08L33/12C08L2205/025C08L2205/035C08L2205/08C08L2201/10C08L51/04C08L83/04C08K5/5425C08K5/1345C08K5/103C08K13/02C08K3/04C08K5/526C08K5/20
Inventor 崔伟松郑凯敬马安彤邓兆敬张小明
Owner CHINA CHEM TECH RES INST
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