Transparent rubber modified polymethyl methacrylate resin composition and preparation method thereof

A technology of polymethyl methacrylate and resin composition, which is applied in the field of transparent rubber-modified polymethyl methacrylate resin composition and its preparation, can solve the problem of high light transmittance, low haze, Problems such as poor toughness

Inactive Publication Date: 2016-02-03
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light-diffusing PMMA material prepared by this method has high light transmittance, low haze and good weather resistance, but poor toughness.

Method used

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  • Transparent rubber modified polymethyl methacrylate resin composition and preparation method thereof

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preparation example Construction

[0029] According to the present invention, the preparation method of described rubbery copolymer preferably comprises:

[0030] Pour 100-300 parts by weight of deionized water into the three-necked bottle, then add 0.1-0.7 parts by weight of sodium pyrophosphate, 0.3-0.9 parts by weight of glucose and 0.001-0.03 parts by weight of ferrous sulfate, and then add 0.01-0.10 parts by weight after fully dissolving Parts by weight of potassium hydroxide, 1-6 parts by weight of emulsifier and 100-300 parts by weight of core layer copolymer, put the three-necked bottle into a constant temperature water bath to keep the temperature at 60-70°C, and at the same time, feed nitrogen into the three-necked bottle and stir for 10 -20 minutes, take by weighing 10-40 parts by weight methyl methacrylate monomer and 0.10-0.35 parts by weight initiator to prepare methyl methacrylate dropwise monomer; described emulsifier is preferably rosin soap liquid and fatty acid soap The mixing emulsifier, the...

Embodiment 1

[0039] Preparation of core layer copolymer

[0040]The mixed emulsifier (weight ratio 1:1) of 150 parts by weight of rosin soap liquid and fatty acid soap, 1 part by weight of tert-dodecyl mercaptan, 1.27 parts by weight of potassium persulfate, 350 parts by weight of butyl acrylate monomer, 25 parts by weight Add parts by weight of styrene monomer and 217 parts by weight of deionized water to the reactor, then seal the reactor and add 125 parts by weight of butadiene monomer, place the reactor in a rotary constant temperature water bath, and react at 65°C for 26 hours , the reaction ends to obtain the core layer copolymer latex.

[0041] Preparation of rubbery copolymers

[0042] Inject 100 parts by weight of deionized water into a 1000ml three-necked bottle, then add 0.4 parts by weight of sodium pyrophosphate, 0.6 parts by weight of glucose and 0.01 parts by weight of ferrous sulfate in sequence, and after fully dissolving, add 0.10 parts by weight of potassium hydroxide a...

Embodiment 2

[0047] Preparation of core layer copolymer

[0048] The mixed emulsifier (weight ratio 1:1) of 150 parts by weight of rosin soap liquid and fatty acid soap, 1 part by weight of tert-dodecyl mercaptan, 1.27 parts by weight of potassium persulfate, 350 parts by weight of butyl acrylate monomer, 25 parts by weight Add parts by weight of styrene monomer and 217 parts by weight of deionized water to the reactor, then seal the reactor and add 125 parts by weight of butadiene monomer, place the reactor in a rotary constant temperature water bath, and react at 65°C for 26 hours , the reaction ends to obtain the core layer copolymer latex.

[0049] Preparation of rubbery copolymers

[0050] Inject 100 parts by weight of deionized water into a 1000ml three-necked bottle, then add 0.4 parts by weight of sodium pyrophosphate, 0.6 parts by weight of glucose and 0.01 parts by weight of ferrous sulfate in sequence, and after fully dissolving, add 0.10 parts by weight of potassium hydroxide ...

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Abstract

The invention provides a transparent rubber modified polymethyl methacrylate resin composition, and belongs to the technical field of high polymer materials. The composition comprises 12-23.14 parts of rubber copolymer and 48-36.86 parts of PMMA matrix resin according to weight parts, wherein the rubber copolymer comprises 20-80 parts of nuclear copolymer and 80-20 parts of shell polymer according to weight parts; the nuclear copolymer comprises 60-75 parts of a butyl acrylate monomer, 20-40 parts of a butadiene monomer and 0-10 parts of a styrene monomer according to weight parts; the shell polymer is polymethyl methacrylate. The invention further provides a preparation method for the transparent rubber modified polymethyl methacrylate resin. The transparent resin is obtained through adjustment of biphase refraction index, so that the resin has better transparency and toughness.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a transparent rubber-modified polymethyl methacrylate resin composition and a preparation method thereof. Background technique [0002] Transparent PMMA resin toughened with copolymer particles, has good impact resistance, transparency, processability, etc. Therefore, they can be widely used in various fields such as electrical appliance casings, refrigerator interiors, and food containers. With the increasing demand for transparent resins, the balance of physical properties between impact resistance and transparency of rubber-modified PMMA resins is increasingly required. However, a large number of researches have not yet reached a satisfactory level. [0003] For example, the Chinese patent CN101870794B disclosed by Shenzhen Keju New Material Co., Ltd. discloses a transparent and toughened PMMA material and a preparation method thereof. The material has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L51/00C08F265/06C08F220/14C08F220/18C08F236/10
Inventor 任亮张明耀张申伟朱福朋王萍赵博文
Owner CHANGCHUN UNIV OF TECH
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