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A silicone gel with special refraction effect for filling and preparation method thereof

A silicone and organic technology, applied in the field of silicone gel and its preparation, can solve problems such as low temperature resistance, damage to tiny components, and high hardness

Active Publication Date: 2017-01-25
北京三辰星火科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its anti-yellowing performance is poor, and its hardness is high, and its stress is easy to cause damage to tiny components. It is not easy to repair, it is not resistant to high temperature, and its expansion coefficient is large. It has a certain impact on the environment, and its construction is affected by environmental conditions.

Method used

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  • A silicone gel with special refraction effect for filling and preparation method thereof
  • A silicone gel with special refraction effect for filling and preparation method thereof
  • A silicone gel with special refraction effect for filling and preparation method thereof

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manufacture example

[0080] The technical solution of the present invention is the preparation method of silicone gel. The three steps of the preparation method are to prepare component A, prepare component B, and mix and prepare silicone gel. The three steps are mixed and processed to prepare each The components are successively added into the reactor and mixed evenly, and finally the silicone gel is prepared.

[0081] The three steps are all carried out at room temperature, the temperature is 25 degrees Celsius, and the specific operation method is as follows:

[0082] (1) Preparation of component A:

[0083] (1) Adding organopolysiloxane into the reactor; then adding vinyl-terminated polysiloxane into the reactor, vacuuming under reduced pressure and mixing uniformly;

[0084] (2) Add the prepolymer of organic active methyl vinyl siloxane into the reactor, decompress and vacuumize and mix uniformly;

[0085] (3) Add polydimethylorganopolysiloxane into the reactor, decompress and evacuate and ...

Embodiment 1

[0101] Component A is composed of the following components in parts by weight:

[0102] (1) The organopolysiloxane of 50 parts by weight, its structural formula is:

[0103]

[0104] wherein a value is 1, n value ranges from 10 to 30, and the polymerization viscosity of the organopolysiloxane at 25°C is 50 mPa.s; R 1 and R 2 For methyl.

[0105] (2) 25 parts by weight of vinyl-terminated polysiloxane, whose polymerization viscosity is 300 mPa.s;

[0106] (3) 300 parts by weight of polydimethylorganopolysiloxane, whose polymerization viscosity is 100mPa.s; the structural formula of the polydimethylorganopolysiloxane is:

[0107]

[0108] wherein n ranges from 15 to 30;

[0109] (4) 10 parts by weight of the prepolymer of organic active methyl vinyl siloxane; its polymerization viscosity is 5000mPa.s;

[0110] (5) the inorganic colorant powder ultramarine blue of 5 parts by weight, i.e. aluminosilicate sodium salt, its chemical formula is Na 6 A1 4 Si 6 S 4 o 20 ...

Embodiment 2

[0127] Component A is composed of the following components in parts by weight:

[0128] (1) The organopolysiloxane of 100 parts by weight, its structural formula is:

[0129]

[0130] wherein the value of a is 2, the value of n is a positive integer ranging from 55 to 70, and the polymerization viscosity of the organopolysiloxane at 25°C is 10000 mPa.s; R 1 is a vinyl group, R 2 For methyl.

[0131] (2) 50 parts by weight of vinyl-terminated polysiloxane, whose polymerization viscosity is 500 mPa.s;

[0132] (3) 100 parts by weight of polydimethylorganopolysiloxane, whose polymerization viscosity is 100mPa.s; the structural formula of the polydimethylorganopolysiloxane is:

[0133]

[0134] Wherein the range of n value is the positive integer of 25 to 35;

[0135] (4) 20 parts by weight of organic active methyl vinyl siloxane prepolymer; its polymerization viscosity is 7000mPa.s;

[0136] (5) the inorganic colorant powder ultramarine blue of 10 parts by weight, i.e....

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Abstract

The invention discloses organic silica gel provided with a special refraction effect used for filling, and the components of the organic silica gel, and further discloses a preparation method of the organic silica gel. According to the organic silica gel, organopolysiloxane is adopted as a main component, better refraction effect and elasticity are realized, and the advantages of high-temperature resistance and small expansion factor are achieved. The preparation method for preparing the organic silica gel is simple and efficient, and can be applied to the large-scale efficient production in industry.

Description

technical field [0001] The invention relates to an organosilicon gel and a preparation method thereof, in particular to an organosilicon gel with special refraction effect for filling and a preparation method thereof. Background technique [0002] With the development of modern lighting technology, people have more extensive and higher requirements for light source products of different colors. There are new requirements for the refraction effect of light. People require that these lighting products not only have good lighting effects, but also be waterproof, dustproof and shockproof. The use of chemical excipients can solve these problems well. [0003] Silicone gel is generally used as a two-component, and it can be used in different ways depending on the degree of penetration. Smaller cone penetration can be used for general waterproofing and filling. Higher cone penetration can be used for cushioning and wear of electronic components. [0004] At present, the refrac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L83/07C08L83/06C08L83/05C08K13/02C08K3/34C08K5/13C08K5/134
Inventor 曹军林杨廖树建
Owner 北京三辰星火科技有限公司