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Deacidification type organic silicone adhesive and preparation method thereof

A silicone adhesive, deacidification technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of difficult preservation, slow curing speed, erosion of plastics, etc., to achieve large heat absorption, reduce Combustion gas concentration, effect of reducing high temperature

Active Publication Date: 2017-05-31
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adhesiveness of the deoxime type is average, and the by-product oxime will corrode copper metals and some plastics; the dealcoholization type is difficult to preserve, and the curing speed is slow

Method used

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  • Deacidification type organic silicone adhesive and preparation method thereof
  • Deacidification type organic silicone adhesive and preparation method thereof
  • Deacidification type organic silicone adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]A deacidification type silicone adhesive, the raw materials of the deacidification type silicone adhesive include by weight:

[0048]

[0049] α,ω-Dihydroxypolydimethylsiloxane (n=50, 5Pa·s), Mg 8 al 2 (OH) 20 CO 3 ·5H 2 O and nano-calcium carbonate, at a temperature of 150 ° C, a vacuum of 0.085 MPa, dehydration, blending and kneading for 200 minutes, cooling to obtain the base material, and then adding methyl silicone oil (0.05Pa·s) to the base material, stirring at 200 rpm for 200 min, and then adding Methyltriacetoxysilane was stirred at 200 rpm for 200 min, and finally dibutyltin dilaurate was added and stirred at 200 rpm for 200 min.

Embodiment 2

[0051] A deacidification type silicone adhesive, the raw materials of the deacidification type silicone adhesive include by weight:

[0052]

[0053] α,ω-Dihydroxypolydimethylsiloxane (n=2000, 60Pa·s), Ca 6 al 2 (OH) 16 CO 3 4H 2 O, nano calcium carbonate and fumed silica (220m 2 / g), at a temperature of 150°C, a vacuum of 0.098MPa, dehydration blending and kneading for 120min, cooling to obtain the base material, and then adding methyl silicone oil (5Pa·s) and ethyl silicone oil (5Pa·s) into the base material, 600rpm Stir at low temperature for 60min, then add methyltriformyloxysilane and glycidoxypropyltrimethoxysilane, stir at 600rpm for 60min, finally add dibutyltin dineodecanoate, and stir at 600rpm for 60min.

Embodiment 3

[0055] A deacidification type silicone adhesive, the raw materials of the deacidification type silicone adhesive include by weight:

[0056]

[0057]

[0058] α,ω-Dihydroxypolydimethylsiloxane (10Pa·s), Mg 4.5 al 2 (OH) 13 CO 3 3.5H 2 O and nano-calcium carbonate, at a temperature of 120 ° C, a vacuum of 0.09 MPa, dehydration, blending and kneading for 150 minutes, cooling to obtain the base material, then adding methyl silicone oil (0.1Pa·s) to the base material, stirring at 400 rpm for 120 min, and then adding Methyltriacetoxysilane and aminopropyltriethoxysilane were stirred at 400rpm for 120min, and finally dibutyltin dilaurate was added and stirred at 450rpm for 100min.

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Abstract

The invention relates to a deacidification type organic silicone adhesive and a preparation method thereof. The raw materials of the deacidification type organic silicone adhesive comprise alpha, omega-dihydroxydimethylpolysiloxane, hydrotalcite, filler, a plasticizer, a crosslinking agent and a catalyst, the deacidification type organic silicone adhesive has excellent adhesion and low corrosion to adhered materials, the volatile matters of the used raw materials are few, and meanwhile the deacidification type organic silicone adhesive also has efficient, environmental-friendly, nontoxic and halogen-free flame retardant properties..

Description

technical field [0001] The invention belongs to the field of adhesives, and relates to a deacidified silicone adhesive and a preparation method thereof. Background technique [0002] Because of its excellent high and low temperature resistance, aging resistance, dielectric properties and low corrosion properties, silicone adhesives are widely used in construction, electronic appliances, new energy and other industries, such as glass curtain wall bonding and sealing, electronic components Silicone adhesives are used for adhesive sealing and photovoltaic module frame sealing. At present, silicone adhesives are widely used in three systems: deoximation type, dealcoholization type and deacidification type using different crosslinking agents. [0003] Deacidification type is a one-component room temperature curing silicone adhesive with the longest history and the cheapest price at present. It is widely used, but its biggest disadvantage is that the by-product of the curing pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06
CPCC08L2201/02C08L2205/02C09J11/04C09J11/06C09J183/06C08L83/04C08K13/02C08K3/26C08K2003/265C08K3/36C08K5/5419C08K5/544
Inventor 石俊杰陈精华张健臻陈建军黄恒超
Owner GUANGZHOU BAIYUN CHEM IND
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