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Acrylate-styrene-acrylonitrile graft polymer with high impact resistance, and preparation method and application thereof

A technique of graft polymer and acrylate, which is applied in the field of high-impact acrylate-styrene-acrylonitrile graft polymer and its preparation, can solve the problems of ASA resin coloring performance reduction and affecting stability, etc., to achieve Effects of increased dispersibility, improved impact strength, and high impact resistance

Active Publication Date: 2020-05-01
SHINE POLYMER (ZHUHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Expanding the width of the particle size distribution can also improve the impact strength. For example, US Patent No. 4,880,875 uses a mixture of large and small particle sizes to improve the impact strength, but increasing the particle size will affect the stability during the synthesis process and lead to ASA resin coloring reduced performance

Method used

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  • Acrylate-styrene-acrylonitrile graft polymer with high impact resistance, and preparation method and application thereof
  • Acrylate-styrene-acrylonitrile graft polymer with high impact resistance, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation of S1.AS seed emulsion

[0049] Prepare mixed monomer A (styrene 162g, acrylonitrile 54g, allyl methacrylate 0.54g);

[0050] In a 2000ml flask equipped with a thermometer, a nitrogen pipe, a reflux device and a stirring device, add 0.2g of diphenoxysulfonate, 0.13g of potassium persulfate, and 504g of deionized water, stir and dissolve with nitrogen and heat up to 70°C , add 26g of mixed monomer A, keep warm for 1~1.5h.

[0051]Take the remaining 190.54g of mixed monomer A, 0.2g of potassium persulfate, 0.5g of diphenoxysulfonate, 1.4g of sodium dodecylbenzenesulfonate, and 118g of deionized water to form a pre-emulsion homogeneously dispersed at high speed. Add the pre-emulsion to the above-mentioned flask dropwise, and control the dropping to complete within 30-60 minutes, keep it warm for 1.5-2 hours, cool down and discharge to prepare the AS seed emulsion.

[0052] S2. Preparation of nuclear emulsion (S2. Crosslinking agent 0.5%)

[0053] In a 2000ml...

Embodiment 2

[0059] Same as Example 1, the only difference is that in S2. Preparation of nuclear emulsion and S3. Preparation of mantle layer, allyl methacrylate is replaced by trimethylolpropane triacrylate, and the dosage remains unchanged.

Embodiment 3

[0060] Embodiment 3 (S2. cross-linking agent 1.5%, S3. cross-linking agent 4%)

[0061] Same as Example 1, the only difference is that allyl methacrylate is replaced by mono[2(1-oxygen-2-propenyl)oxyethyl] maleate in the preparation of S2. nuclear emulsion, and the amount is adjusted is 4.9g, and the amount of butyl acrylate is adjusted to 319.1g. In S3. Mantle layer preparation, allyl methacrylate was replaced with mono[2(1-oxy-2-propenyl)oxyethyl] maleate, and the dosage remained unchanged.

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Abstract

The invention provides an acrylate-styrene-acrylonitrile graft polymer with high impact resistance, and a preparation method and an application thereof. The particle of the acrylate-styrene-acrylonitrile graft polymer has a four-layer structure; under the combined action of a hard AS seed, a medium-crosslinking-density core and a high-crosslinking mantle layer in the particle, the particle is endowed with high elasticity; due to the high elasticity of the particle, resin can absorb more capacity under the action of an external force, and can restore to an original state after the external force disappears; thus, the resin can be endowed with high impact resistance. The aromatic vinyl compound-vinyl cyanide shell layer grafted outside the mantle layer can increase the dispersing performanceof the particle in base resin, and facilitates improving impact strength.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a high-impact acrylate-styrene-acrylonitrile graft polymer and its preparation method and application. Background technique [0002] ABS is widely used in various fields such as electrical appliances, electronic products, building materials, and automobiles. However, ABS uses a butadiene polymer as a rubber elastomer, so it has poor weather resistance and is not suitable as an exterior material. [0003] ASA (acrylate-styrene-acrylonitrile graft copolymer) was developed on the basis of ABS, using polyacrylate as the elastomer to replace the polybutadiene elastomer in ABS. Because polyacrylate does not contain unsaturated carbon-carbon double bonds, the weather resistance of ASA is much superior to that of ABS, and it has been widely used in outdoor applications. [0004] At present, the traditional ASA production method is to synthesize cross-linked polyacrylate emul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F285/00C08F257/02C08F212/08C08F220/44C08F220/18C08F220/40C08F222/14
CPCC08F285/00C08F257/02C08F212/08C08F220/44C08F220/40
Inventor 胡龙刘伟时石健伟韩泽明陈楚亮林观生
Owner SHINE POLYMER (ZHUHAI) CO LTD
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