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Preparation method of copolymerized organic silicon resin microspheres

A technology of resin microspheres and silicones, applied in the chemical industry, can solve the problems of incomplete spherical structure, restricting the application of light diffusing agents, affecting the effect of light diffusion, etc., and achieve the effect of precise shape

Inactive Publication Date: 2020-06-05
QUZHOU ZHONGTONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The silicone resin microspheres provided by the above technologies and existing patents have the disadvantage of incomplete spherical structure, which affects its light diffusion effect and limits its application in the field of light diffusing agents

Method used

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  • Preparation method of copolymerized organic silicon resin microspheres
  • Preparation method of copolymerized organic silicon resin microspheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of copolymerized silicone resin microspheres, the operation steps are:

[0028] Add 40g of vinyltris(dimethylsiloxane)silane into the reactor, stir and mix evenly, then add 8g of 1,1,3,3-tetramethyldisiloxane, then raise the temperature to 40°C , stirred and mixed for 60min, then added 400g of purified water, 0.1g of trichlorovinyl platinum (II) potassium and 0.5g of high-efficiency microemulsifier, 0.5g of 1,4-dibromoacetoxy-2-butyl Alkene and 0.03g of zinc undecylenate were stirred and mixed at high speed for 20 minutes, then ultrasonically dispersed for 10 minutes to form a microemulsion, then heated to 40°C, and reacted for 120 minutes. After the reaction was completed, 30g of ammonia water was added, and the temperature was raised to 65°C, and the reaction was continued for 30 minutes. After the reaction is completed, centrifugal sedimentation, filtration and drying can obtain the above-mentioned a kind of copolymerized silicone resin microsphe...

Embodiment 2

[0036] A preparation method of copolymerized silicone resin microspheres, the operation steps are:

[0037] Add 45g of vinyltris(dimethylsiloxane)silane into the reactor, stir and mix evenly, add 11g of 1,1,3,3-tetramethyldisiloxane, and then raise the temperature to 50°C , stirred and mixed for 67min, then added 455g of purified water, 0.2g of trichlorovinyl platinum (II) potassium and 1g of high-efficiency microemulsifier, 1g of 1,4-dibromoacetoxy-2-butene and 0.09g of zinc undecylenate, mixed at high speed for 25 minutes, then ultrasonically dispersed for 18 minutes to form a microemulsion, then heated to 50°C, and reacted for 180 minutes. After the reaction was completed, 50g of ammonia water was added, heated to 69°C, and continued to react for 40 minutes; completed After the reaction, the copolymerized silicone resin microspheres can be obtained by centrifugal sedimentation, filtration and drying.

[0038] Described high-efficiency microemulsifier is processed and prepare...

Embodiment 3

[0046] A preparation method of copolymerized silicone resin microspheres, the operation steps are:

[0047] Add 68g of vinyltris(dimethylsiloxane)silane into the reactor, stir and mix evenly, then add 19g of 1,1,3,3-tetramethyldisiloxane, then raise the temperature to 60°C , stirred and mixed for 90min, then added 700g of purified water, 0.5g of trichlorovinyl platinum (II) potassium and 3g of high-efficiency microemulsifier, 2.3g of 1,4-dibromoacetoxy-2-butene Mix with 0.6g of zinc undecylenate, stir and mix at high speed for 30min, then ultrasonically disperse for 30min to form a microemulsion, then heat up to 60°C, react for 240min, add 70g of ammonia water after the reaction is completed, heat up to 85°C, and continue to react for 60min; After the reaction is completed, the copolymerized silicone resin microspheres can be obtained by centrifuging, filtering and drying.

[0048] Described high-efficiency microemulsifier is processed and prepared according to the following ...

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Abstract

The invention relates to the field of chemical engineering, in particular to a preparation method of copolymerized organic silicon resin microspheres. According to the method, a vinyl-siloxane polymer, vinyl tri(dimethylsiloxane)silane, 1,1,3,3-tetramethyldisiloxane and a platinum catalyst form a microemulsion in a high-efficiency micro-emulsifier and the micro-emulsifier is subjected to copolymerization, thereby obtaining the organic silicon resin microspheres. The invention relates to the preparation method of the copolymerized organic silicon resin microspheres. According to the method, anorganic silicon resin microsphere is prepared by adopting a copolymerization method; an efficient micro-emulsifier is adopted. The water-in-oil single-phase micro-emulsion can be prepared from the rawmaterials under the condition of sufficient and uniform mixing, an ideal nanoparticle synthesis environment is provided for manufacturing a nanoscale micro-reactor for reaction, the morphology of nanoparticles can be accurately controlled, and the synthesized organic silicon resin microspheres have very complete spherical morphology.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a method for preparing copolymerized silicone resin microspheres. Background technique [0002] Compared with inorganic fillers, silicone resin micropowder has low relative density, and at the same time has the characteristics of heat resistance, weather resistance, lubricity and water resistance, so it can be widely used as fillers and modifiers for plastics, rubber, paints and cosmetics. sexual additives. For example, it is used to improve the crack resistance of epoxy resin, improve the lubricity and anti-adhesion of plastic films, improve the performance of plastic products and cosmetics, etc., and its application effect has attracted people's attention. [0003] 201811228071.1 discloses a hydrophilic silicone microsphere and its preparation method. The preparation method comprises the following steps: first, adding silane monomer A, silane monomer B and deionized water int...

Claims

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Application Information

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IPC IPC(8): C08G77/24C08G77/22C08G77/06C08G77/08C08J3/03C08L83/08B01J13/14B01J13/04
CPCB01J13/04B01J13/14C08G77/06C08G77/08C08G77/22C08G77/24C08J3/03C08J2383/08
Inventor 许益生吴哥德许丽斯
Owner QUZHOU ZHONGTONG CHEM
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