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A kind of organic silica gel with high self-adsorption property and preparation method thereof

A technology of organic silica gel and self-adsorption, which is applied in the direction of adhesives, polymer adhesive additives, adhesive additives, etc. It can solve the problems of insufficient adhesion between basic glue and substrate, poor physical and mechanical properties of the adhesive film, and self-adsorption of the adhesive film. Poor performance and other problems, to achieve the effect of solving the problem of oil leakage, complete reaction, and reducing the possibility of demoulding

Inactive Publication Date: 2018-09-25
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the base glue used in this kind of self-adsorption box has the following problems: the self-adsorption of the film is poor, the surface oil leaks to pollute the components, the adhesion between the base glue and the base material is insufficient and easy to release the mold, and the physical and mechanical properties of the film are poor.

Method used

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  • A kind of organic silica gel with high self-adsorption property and preparation method thereof
  • A kind of organic silica gel with high self-adsorption property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] At 25°C, weigh 75.8g of methyl vinyl polysiloxane resin such as structural formula (1), where a=0, b=1.2, a+b=1.2; methyl vinyl polysiloxane resin such as structural formula (3) 20g of silicone oil, where a=300; 1g of substrate adhesion enhancer such as structural formula (7), wherein m=10, n=15; 3g of methyl hydrogen-containing polysiloxane resin such as structural formula (5), where a= 0, b=2.0, a+b=2.0; 0.1g of 3,5-dimethyl-1-hexyn-3-ol, mix well in a stirring tank, then add platinum-vinylsiloxane with a platinum content of 10000ppm Alkanes complex 0.1g, mixed evenly to obtain organic silica gel.

Embodiment 2

[0044]At 25°C, weigh 60g of methylvinyl polysiloxane resin with structural formula (2), where a=0.3, b=0.3, c=0.3, d=0.3, a+b+c+d=1.2 30g of methyl vinyl silicone oil such as structural formula (4), wherein a=200, b=300; 3g of substrate adhesion enhancer such as structural formula (7), wherein m=15, n=10; such as structural formula (6) 5g of methyl hydrogen-containing polysiloxane resin, where a=0.5, b=0.5, c=0.5, d=0.5, a+b+c+d=2.0; 3-methyl-1-butyne-3 - 1g of alcohol, mixed evenly in a stirring tank, then adding 1g of platinum-vinylsiloxane complex with a platinum content of 3000ppm, mixed evenly to obtain organic silica gel.

Embodiment 3

[0046] At 25°C, weigh 40 g of methyl vinyl polysiloxane resin such as structural formula (1), where a=0.6, b=0.1, a+b=0.7, and methyl vinyl polysiloxane resin such as structural formula (2) 28g of silicone resin, where a=0.3, b=0.2, c=0.2, d=0.2, a+b+c+d=0.9; 15g of methyl vinyl silicone oil such as structural formula (3), where a=400 , such as 10g of methyl vinyl silicone oil of structural formula (4), where a=400, b=100; 2g of substrate adhesion enhancer such as structural formula (7), where m=15, n=15; such as structural formula (5) 2g of methyl hydrogen-containing polysiloxane resin, where a=1.7, b=0.1, a+b=1.8; 2g of methyl hydrogen-containing polysiloxane resin such as structural formula (6), where a=1.2, b =0.2, c=0.2, d=0.3, a+b+c+d=1.9; 0.6g of 1-acetylene-1-cyclohexanol, mixed evenly in a stirring tank, and then adding platinum content of 7000ppm platinum-vinyl Siloxane complex 0.4g, mixed evenly to obtain organic silica gel.

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Abstract

The invention relates to the technical field of organic silicon packaging and in particular relates to organic silica gel with a high self-adsorption property and a preparation method thereof. The organic silica gel with the high self-adsorption property is one-component heating and curing silicon-hydrogen addition type organic silica gel and is prepared by adding raw materials according to the following weight ratio and uniformly mixing: 60 to 75.8 parts of methylvinyl polysiloxane resin, 20 to 30 parts of methylvinyl silicone oil, 3 to 5 parts of methyl hydrogen-containing polysiloxane resin, 1 to 3 parts of a base material adhering enhancing agent, 0.1 to 1 part of a catalyst and 0.1 to 1 part of an inhibitor. An organic silicon thin film is obtained by adopting an organic silicon silicon-hydrogen addition reaction through high-temperature curing. Compared with the prior art, the reaction is more complete and deeper so that an oil leakage problem is solved; meanwhile, the coefficient of linear expansion is low and the possibility of de-molding is reduced; the organic silica gel has a special macromolecular structure so that the organic silica gel has the very high self-adsorption property.

Description

technical field [0001] The invention relates to the technical field of silicone packaging, in particular to a highly self-adsorbing silicone and a preparation method thereof, which can be used as basic glue for packaging such as PC boxes, PS packaging boxes, ABS packaging boxes, and trays of different materials. Background technique [0002] Self-adsorption box is the latest packaging method for micro-devices. It breaks through the limitations of traditional packaging methods and can meet a series of requirements such as optical materials, optoelectronic devices, semiconductor components, microelectronic chips (bare chips), and precision medical equipment. The special storage and transportation requirements of products in the high-end science and technology field can realize efficient and safe logistics procedures for such products. [0003] The self-adsorption box uses special polymer materials to ensure excellent adsorption. When the device is placed in the plastic box, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/07C09J11/08
CPCC08L2205/02C08L2205/035C09J11/08C09J183/04C08L83/04C08L83/06
Inventor 孙刚陈维张丽娅
Owner YANTAI DARBOND TECH