High-rubber ASA resin powder and preparation method thereof

A technology of ASA resin and high rubber powder, applied in the field of ASA resin high rubber powder and its preparation, to achieve the effects of easy control, high conversion rate and high benefit

Active Publication Date: 2019-02-01
四川兴彩高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no self-synthesized ASA resin on the market in China, and the raw materials of rubber powder are completely imported, and then SAN resin, auxiliary materials, etc. are added for semi-synthesis, and then modified ASA resins that meet different requirements are prepared.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The present invention will provide a kind of preparation method of ASA resin high rubber powder, and described preparation method comprises the following steps:

[0026] 1) Add 170 to 190 parts by weight (preferably 180 parts by weight) of deionized water into the reactor, purging with an inert gas (nitrogen) while raising the temperature to 60 to 80°C (preferably 70°C); then Add 10-20 parts by weight (preferably 15 parts by weight) of reactive monomers, 0.1-0.4 parts by weight (preferably 0.2 parts by weight) of cross-linking agent, and 10-30 parts by weight (preferably 20 parts by weight) of emulsifier solution , 1 to 5 parts by weight (preferably 2.5 parts by weight) reducing agent solution; add 0.05 to 1 part by weight (preferably 0.08 parts by weight) initiator to start polymer reaction, and react for 1 to 3 (preferably 2 hours) hours End the reaction; heat preservation and aging for 1 to 2 hours (preferably 1.5 hours);

[0027] 2) Continue to drop the following c...

Embodiment 1

[0032] Preparation before synthesis:

[0033]1) Preparation of emulsifier solution A: prepare a sodium dodecylbenzenesulfonate solution with a mass concentration of 3%;

[0034] 2) Preparation of emulsifier solution B: prepare a TritonX-100 solution with a mass concentration of 3%;

[0035] 3) Preparation of reducing agent solution: 0.1 g of ferrous sulfate, 1.5 g of sodium formaldehyde sulfoxylate, and 2 g of EDTA were dissolved in 500 g of deionized water to obtain a reducing agent solution.

[0036] Synthesis:

[0037] 1) Add 180g of deionized water into the reactor, while purging with nitrogen, raise the temperature to 70°C, add 15g of butyl acrylate, 0.15g of ethylene glycol diacrylate, 0.06g of propyl methacrylate, 18g emulsifier solution A, 2g emulsifier solution B, 2.5g reducing agent solution; when the temperature is stable at 70°C, add 0.08g cumene hydroperoxide to start the polymer reaction. When the amount of seeds accounts for 5% of the total monomer weight;

...

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Abstract

The invention belongs to the field of polymer materials, and relates to a h igh-rubber ASA resin powder and a preparation method thereof. The preparation method of the high-rubber ASA resin powder comprises the following steps: 1) preparation of a seed; 2) preparation of a core; 3) preparation of a shell; and 4) post-treatment, wherein an emulsifier adopted in step 1) to step 3) is a mixture of ananionic surfactant and a nonionic surfactant, and a mass ratio of the anionic surfactant to the nonionic surfactant is (8-9):1; and a reducer solution adopted in the step 1) to step 3) is prepared through dissolving 0.1 g of ferrous sulfate, 1.5 g of sodium formaldehydesulfoxylate and 2 g of ethylenediaminetetraacetic acid in 500 g of deionized water. The preparation method has the advantages oflow temperature in the synthesis process, low energy consumption, easiness in operation, and high conversion rate; the impact strength of the obtained product is greatly improved, is equivalent to that of foreign products, and can basically meet requirements of most application fields; and the autonomous production of the high-rubber ASA resin powder is realized.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to an ASA resin high-glue powder and a preparation method thereof. Background technique [0002] ASA resin, also known as AAS resin, is a ternary graft copolymer composed of acrylate, styrene and acrylonitrile. Its structure presents a "sea-island structure" in which the resin is the continuous phase and the rubber is the dispersed phase; The introduction of acrylate rubber without double bonds to replace polybutadiene rubber with double bonds has fundamentally changed the weather resistance of ASA, which is about 10 times higher than that of ABS; and it is also significantly better than ABS in terms of chemical resistance. ABS resin has greatly improved the disadvantages of ABS resin, such as the significant decrease in mechanical strength after long-term exposure outdoors, and the color gradually turning yellow under the action of sunlight. Given that ASA resin has go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/04C08F212/10C08F220/44C08F220/18C08F222/14
CPCC08F220/18C08F265/04C08F220/1804C08F212/10C08F220/44C08F220/1803C08F222/102
Inventor 牟鸿源何勇吴敏
Owner 四川兴彩高新材料有限公司
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