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Matte organic silicon high-impact toughening agent and preparation method thereof

A silicone and high-impact technology, which is applied in the field of matte silicone high-impact toughening agent and its preparation, can solve the problems of high addition of matting agent, difficult processing, and great impact on product impact properties, and achieves Low production cost, convenient control and high production efficiency

Active Publication Date: 2021-04-30
铨盛聚碳科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used matting agents are inorganic matting agents and organic matting agents. Patent CN107652605A discloses the use of inorganic matting agents to prepare ASA low-gloss materials. The amount of matting agents added is high, the processing is difficult, and the impact performance of the product is greatly affected.

Method used

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  • Matte organic silicon high-impact toughening agent and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0039] A preparation method of a matt silicone high-impact toughening agent, comprising the steps of:

[0040] Synthetic organopolysiloxane core emulsion:

[0041] (S1), uniformly mixing the organosiloxane monomer and the silane coupling agent at a weight ratio of 100:7 to obtain the organosilicon mixture;

[0042] (S2), adding the organosilicon mixture into the aqueous solution mixed with the catalyst and emulsifier A, using a homogenizer to shear at a high speed of 10,000 rpm for 12 minutes, and then reacting at 90°C for 9 hours to obtain the organosilicon Polysiloxane core emulsion; Wherein, the total mass of the organosiloxane monomer is 40% of the water quality, the quality of the catalyst is 3% of the organosiloxane monomer quality, the emulsifier A The mass is 10% of the mass of organosiloxane monomer;

[0043] Synthetic Acrylate Rubber Emulsion:

[0044] (A1), mix 40 parts by weight of acrylate monomers and 1.2 parts by weight of crosslinking agent evenly, add 40 pa...

Embodiment 2

[0059] A preparation method of a matt silicone high-impact toughening agent, comprising the steps of:

[0060] Synthetic organopolysiloxane core emulsion:

[0061] (S1), uniformly mixing the organosiloxane monomer and the silane coupling agent at a weight ratio of 100:0.5 to obtain an organosilicon mixture;

[0062] (S2), adding the organosilicon mixture into the aqueous solution mixed with the catalyst and emulsifier A, using a homogenizer to shear at a high speed of 8000 rpm for 20 minutes, and reacting at a temperature of 85°C for 12 hours to obtain the organosilicon Polysiloxane core emulsion; Wherein, the total mass of the organosiloxane monomer is 20% of the water quality, the quality of the catalyst is 1% of the organosiloxane monomer quality, the emulsifier A The mass is 1% of the mass of organosiloxane monomer;

[0063] Synthetic Acrylate Rubber Emulsion:

[0064] (A1), mix 30 parts by weight of acrylate monomer and 0.15 parts by weight of crosslinking agent evenly...

Embodiment 3

[0079] A preparation method of a matt silicone high-impact toughening agent, comprising the steps of:

[0080] Synthetic organopolysiloxane core emulsion:

[0081] (S1), uniformly mixing the organosiloxane monomer and the silane coupling agent at a weight ratio of 100:15 to obtain an organosilicon mixture;

[0082] (S2), adding the organosilicon mixture into the aqueous solution mixed with the catalyst and emulsifier A, using a homogenizer to shear at a high speed of 12000 rpm for 5 minutes, and then reacting at 100°C for 6 hours to obtain the organosilicon Polysiloxane core emulsion; Wherein, the total mass of the organosiloxane monomer is 60% of the water quality, the quality of the catalyst is 5% of the organosiloxane monomer quality, the emulsifier A The mass is 20% of the organosiloxane monomer mass;

[0083] Synthetic Acrylate Rubber Emulsion:

[0084] (A1), mix 50 parts by weight of acrylate monomer and 2.5 parts by weight of cross-linking agent evenly, add 50 parts ...

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Abstract

The invention relates to the technical field of engineering plastic toughening modification, in particular to a matte organic silicon high-impact toughening agent and a preparation method thereof. The preparation method comprises the steps that organopolysiloxane core emulsion and acrylate rubber emulsion serve as main raw materials, shell monomer mixed liquid and an initiator B are added for an emulsion polymerization reaction, and matte emulsion is prepared; the matte organic silicon high-impact toughening agent obtained by demulsifying and drying not only has the low glass transition temperature and low-temperature impact strength of organic silicon rubber, but also has the characteristics of high temperature resistance, weather aging resistance, oil resistance, easiness in processing and the like of acrylate rubber; and when AS resin is used for producing ASA resin, after the matte organic silicon high-impact toughening agent is added, the surface of the ASA resin becomes uneven and rough microscopically, when light irradiates the surface of an ASA resin material, part of the light is absorbed and refracted into the material, and the other part of the light generates diffuse reflection on a rough interface of the resin and rubber, so that matt effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of toughening and modification of engineering plastics, in particular to a matte silicone high-impact toughening agent and a preparation method thereof. Background technique [0002] ASA resin and ABS resin are commonly used engineering plastics with excellent mechanical properties, processability, electrical insulation and chemical resistance. Widely used in automotive decoration, instrumentation, electronic and electrical equipment casings, and building materials. [0003] When it is used as an automotive interior part, the gloss of the part after molding is high, and the surface is easy to shine, which affects the overall design appearance on the one hand. On the other hand, reflecting light for a long time will cause visual fatigue and affect the driving experience. The low-gloss surface can be obtained by performing matte grinding, matte spraying, and fabric covering on the surface of ASA or ABS parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F265/04C08F212/08C08F220/44C08L51/04C08L51/08
CPCC08F283/124C08F265/04C08L51/04C08L2205/025C08L2205/03C08F212/08C08F220/44C08L51/085
Inventor 王启瑶孙佳男陈杰马博
Owner 铨盛聚碳科技股份有限公司
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