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Rubbery copolymer particle and method for preparing the same

A copolymer and rubber-like technology, which is applied in the field of component rubber-like copolymer particles and their preparation, can solve the problem that the impact strength of styrene-based transparent resin cannot be fully satisfied, and achieve the effect of good transparency

Active Publication Date: 2008-02-27
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impact strength of the styrene-based transparent resin modified by rubber particles cannot fully meet people's requirements.

Method used

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  • Rubbery copolymer particle and method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Preparation of core layer copolymer

[0056] Weigh 307 parts by weight of emulsifier, 1 part by weight of molecular weight modifier, 36 parts by weight of initiator solution, and 100 parts by weight of styrene monomer in a reactor, seal the reactor and add 400 parts by weight of butadiene monomer. The reaction kettle was placed in a rotary constant temperature water bath and the temperature was raised to 65°C. After 14 hours of reaction, the temperature was raised to 69°C, and the reaction was carried out for 8 hours. Then the temperature was raised to 71°C, and the reaction was continued for 4 hours. After the reaction is complete, lower the temperature and add 1 part by weight of a terminator, and discharge to obtain a core layer copolymer.

[0057] Preparation of rubbery copolymers

[0058] Inject 200 parts by weight of deionized water into a 1000ml three-necked bottle, then sequentially add 0.4 parts by weight of sodium pyrophosphate, 0.6 parts by weight of glucose...

Embodiment 2

[0067] Preparation of core layer copolymer

[0068] In the same manner as used in Example 1, a core layer copolymer was obtained.

[0069] Preparation of rubbery copolymers

[0070] Inject 200 parts by weight of deionized water into a 1000ml three-necked bottle, then sequentially 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, and after fully dissolving, add 0.05 parts by weight of potassium hydroxide to disproportionate abietic acid 3 parts by weight of potassium and 124 parts by weight of the core layer copolymer latex. Put the three-necked bottle into a constant temperature water bath and keep the temperature to 70°C. At the same time, feed nitrogen into the three-necked bottle and stir for 10 minutes to eliminate the polymerization inhibition factor of oxygen in the system.

[0071] Weigh 22 parts by weight of styrene monomer, 0.20 part by weight of dicumyl peroxide, and 0.05 part by weight of mo...

Embodiment 3

[0078] Preparation of core layer copolymer

[0079] In the same manner as used in Example 1, a core layer copolymer was obtained.

[0080] Preparation of rubbery copolymers

[0081] Inject 200 parts by weight of deionized water into a 1000ml three-necked bottle, then sequentially 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, and after fully dissolving, add 0.05 parts by weight of potassium hydroxide to disproportionate abietic acid 3 parts by weight of potassium and 112 parts by weight of the core layer copolymer latex, the three-necked bottle was placed in a constant temperature water bath to keep the temperature to 70 ° C, and nitrogen was introduced into the three-necked bottle and stirred for 10 minutes to eliminate the polymerization inhibition factor of oxygen in the system.

[0082] Weigh 25 parts by weight of styrene monomer, 0.25 part by weight of cumene hydroperoxide, and 0.05 part by wei...

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PUM

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Abstract

The invention discloses a rubber-like copolymer particle and preparing method for transparent rubber modified styrene resin compound composite, which is characterized by the following: comprising 20-80 wt core layer copolymer and 80-20 wt shell layer copolymer; setting the grain size of the core layer copolymer at 100-1000nm; setting the core layer copolymer as 5-50 wt styrene monomer and 95-50 wt diene monomer; setting gel content of the core layer copolymer latex as 65-85%; setting the shell layer copolymer as 10-70 wt styrene monomer and 90-30 wt (metyl group) acrylic ester monomer; adjusting composite, grain size, grain size disperse, gel content of the core layer copolymer and composite of rubber-like copolymer particle; making the transparent rubber modified styrene resin with good transparency and shockproof property.

Description

technical field [0001] The present invention relates to a component rubber-like copolymer particle for a transparent rubber-modified styrene-based resin composition and a preparation method thereof. Background technique [0002] Transparent rubber-modified styrene-based resin toughened with rubber-like copolymer, which 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. As the demand for transparent resins increases, the balance of physical properties between impact resistance and transparency in rubber-modified styrenic resins is increasingly required. However, a large number of studies on rubbery copolymers have not yet reached a satisfactory level. [0003] For example, Chinese published patent CN1438267A discloses an impact-resistant transparent styrenic resin composition of Japan Dai Ink Chemical Industry Co., Ltd. Among t...

Claims

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Application Information

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IPC IPC(8): C08L25/10C08L25/14C08F4/34C08F4/04C08F2/22C08F2/38C08F2/44
Inventor 张明耀刘立红任亮徐弘郐羽马卓高延成刘长清盛光胡慧林李金鹰张春英
Owner BC P INC CHINA NAT PETROLEUM CORP
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