Preparation method of low-temperature transparent high-anti-impact MBS resin

A high-impact resin technology, applied in the field of preparation of low-temperature transparent high-impact MBS resin, can solve the problems of MBS resin not having transparency, etc., and achieve the effect of suitable particle size and large molecular weight of the rubber phase

Inactive Publication Date: 2018-12-14
万达集团股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Impact-resistant MBS resin is prepared by synthesizing large particle size styrene-butadiene latex, but the prepared MBS resin does not have transparency

Method used

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  • Preparation method of low-temperature transparent high-anti-impact MBS resin
  • Preparation method of low-temperature transparent high-anti-impact MBS resin
  • Preparation method of low-temperature transparent high-anti-impact MBS resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 A preparation method of low-temperature transparent high-impact MBS resin

[0023] A preparation method of low-temperature transparent high-impact MBS resin, comprising the following preparation steps:

[0024] (1) Synthesis of rubber phase latex: Introduce nitrogen into the 10L reaction kettle, set the rotation speed of the reaction kettle to 100rpm, add the dispersion medium, remove the oxygen in the dispersion medium by vacuuming, and then pour the emulsifier into the reaction kettle , polymerization monomer, initiator, molecular weight regulator, adjust pH = 10 by pH regulator, control the solid content at 35%, raise the temperature to 7±1.5℃ under the protection of nitrogen, react at constant temperature for 20h, the conversion rate is ≥93% and the latex particles When diameter = 80-110nm, finish the reaction and get rubber phase latex;

[0025] (2) Resin phase graft polymerization: Introduce nitrogen into the 10L reactor, set the rotation speed of the r...

Embodiment 2

[0029] Example 2 A low-temperature transparent high-impact MBS resin

[0030] According to the method of step (1) in Example 1, the rubber phase emulsion of this example was prepared according to the formula in Table 1:

[0031] Table 1 Basic formula of rubber phase emulsion

[0032]

[0033] According to the method of step (2) in Example 1, carry out the resin phase graft polymerization of this example according to the formula in Table 2:

[0034] Table 2 Basic formula of grafted phase

[0035]

[0036] According to the method in step (3) of Example 1, a low-temperature transparent high-impact MBS resin of this example was prepared, marked as MBS1.

Embodiment 3

[0037] Example 3 A low-temperature transparent high-impact MBS resin

[0038] According to the method of step (1) in Example 1, the rubber phase emulsion of this example was prepared according to the formula in Table 3:

[0039] Table 3 Basic formula of rubber phase emulsion

[0040]

[0041] According to the method of step (2) in Example 1, carry out the resin phase graft polymerization of this example according to the formula in Table 4:

[0042] Table 4 Basic formula of grafted phase

[0043]

[0044] According to the method in step (3) of Example 1, a low-temperature transparent high-impact MBS resin of this example was prepared, marked as MBS2.

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Abstract

The invention relates to the technical field of preparation of polymers, and especially provides a preparation method of low-temperature transparent high-anti-impact MBS resin. The method includes: styrene-butadiene latex is synthesized by using low-temperature emulsion polymerization at about 7 DEG C, wherein particle size of the latex is controlled to be about 100 nm, thus satisfying demands ontransparency. Compared with styrene-butadiene latex synthesized through high-temperature emulsion polymerization, the styrene-butadiene latex synthesized through the low-temperature emulsion polymerization is large in molecular weight and narrow in molecular weight distribution of a rubber phase, so that anti-impact performance is enhanced. Through the low-temperature emulsion polymerization for synthesizing the styrene-butadiene latex and then grafting with styrene and methyl methacrylate, the prepared MBS resin has transparency and anti-impact performance.

Description

technical field [0001] The invention relates to the technical field of polymer preparation, in particular to a preparation method of low-temperature transparent high-impact MBS resin. Background technique [0002] MBS resin is a functional resin developed on the basis of ABS resin. MBS resin is prepared by emulsion polymerization of butadiene (BD), styrene (ST) and methyl methacrylate (MMA). It has a typical core / shell structure in submicroscopic form. Methyl methacrylate-benzene The ethylene copolymer constitutes the resin phase, and the styrene-butadiene latex constitutes the rubber phase. Due to the special structure of MBS resin, MBS resin has good low temperature performance, high impact resistance, transparency, smooth surface and easy processing, and its resin solubility parameter (9.2-9.5) is similar to that of PVC resin (9.5- 9.7) are similar, so that MBS resin has good transparency and impact resistance when used as a processing modifier for PVC resin. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/06C08F212/08C08F220/14
CPCC08F279/06C08F212/08
Inventor 吴志朋尚吉永谢丰鸣李景亮林润雄曲春林
Owner 万达集团股份有限公司
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