Organic silicon high-thermal-conductivity flame-retardant pressure-sensitive adhesive and preparation method thereof

A technology of silicone rubber and silicone, applied in the direction of adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of environmental pollution by by-products, less variety, and low safety, and achieve improved Flame retardant and smoke suppression effect, convenient preparation steps, and effect of reducing transmission speed

Inactive Publication Date: 2020-07-17
SHENZHEN NIKTO TAPE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few varieties of flame-retardant organic adhesives in China. Most of the flame-retardant products in the existing adhesive tapes are halogen flame-retardant, and the by-products pollute the environment and have low safety.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A silicone high thermal conductivity flame-retardant pressure-sensitive adhesive, including the following parts by weight:

[0030] 100 parts of silicone rubber, 70 parts of silicone resin, 5 parts of nano tungsten carbide, 5 parts of polyamide, 3 parts of methyl imidazole, 20 parts of tackifier, 30 parts of flame retardant, 1 part of condensation catalyst, 2 parts of crosslinking agent Parts, 45 parts filler and 80 parts solvent.

[0031] among them,

[0032] Silicone rubber is SD-33 methyl silicone rubber, silicone resin is organosiloxane resin; flame retardant is intumescent flame retardant; condensation catalyst is organotin compound; crosslinking agent is peroxide crosslinking agent; The filler is magnesium hydroxide; the solvent is an aromatic organic solvent.

[0033] Specifically, the following components are used: the flame retardant is ammonium polyphosphate; the condensation catalyst is dibutyltin dilaurate; and the crosslinking agent is benzoyl peroxide.

[0034] Wh...

Embodiment 2

[0047] A silicone high thermal conductivity flame-retardant pressure-sensitive adhesive, including the following parts by weight:

[0048] 120 parts of silicone rubber, 130 parts of silicone resin, 10 parts of nano tungsten carbide, 12 parts of polyamide, 10 parts of methyl imidazole, 40 parts of tackifier, 45 parts of flame retardant, 3 parts of condensation catalyst, 4 parts of crosslinking agent Parts, 60 parts of filler, 100 parts of solvent.

[0049] Among them, silicone rubber is SD-33 methyl silicone rubber, silicone resin is organosiloxane resin; flame retardant is intumescent flame retardant; condensation catalyst is organotin compound; crosslinking agent is peroxide crosslinking Agent; filler is aluminum hydroxide; solvent is aromatic organic solvent.

[0050] More specifically, the flame retardant is ammonium polyphosphate; the condensation catalyst is dibutyltin tetraethoxysilane; the crosslinking agent is 2,4-dichlorobenzoyl peroxide; and the solvent is toluene or xylen...

Embodiment 3

[0053] A silicone high thermal conductivity flame-retardant pressure-sensitive adhesive, including the following parts by weight:

[0054] 110 parts of silicone rubber, 100 parts of silicone resin, 7.5 parts of nano tungsten carbide, 8.5 parts of polyamide, 6.5 parts of methyl imidazole, 30 parts of tackifier, 37.5 parts of flame retardant, 2 parts of condensation catalyst, 3 parts of crosslinking agent Parts, 50 parts filler, 90 parts solvent.

[0055] Among them, silicone rubber is SD-33 methyl silicone rubber, silicone resin is organosiloxane resin; flame retardant is intumescent flame retardant; condensation catalyst is organotin compound; crosslinking agent is peroxide crosslinking Agent; filler is titanium dioxide; solvent is aromatic organic solvent.

[0056] More specifically, the flame retardant is ammonium polyphosphate; the condensation catalyst is dibutyltin tetraethoxysilane; the crosslinking agent is benzoyl peroxide; and the solvent is toluene.

[0057] The preparation...

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PUM

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Abstract

The invention relates to an organic silicon high-thermal-conductivity flame-retardant pressure-sensitive adhesive. The adhesive comprises the following components in parts by weight: 100 to 120 partsof organic silicon rubber, 70 to 130 parts of organic silicon resin, 5 to 10 parts of nanometer tungsten carbide, 5 to 12 parts of polyamide, 3 to 10 parts of methylimidazole, 20 to 40 parts of a tackifier, 30 to 45 parts of a flame retardant, 1 to 3 parts of a condensation catalyst, 2 to 4 parts of a cross-linking agent, 45 to 60 parts of a filler and 80 to 100 parts of a solvent. The invention also relates to a preparation method of the pressure-sensitive adhesive. The pressure-sensitive adhesive prepared by adopting the method provided by the invention has the advantages that the heat-conducting property and the flame-retardant property of the pressure-sensitive adhesive are greatly improved, so the pressure-sensitive adhesive can be widely applied to the technical field of adhesive tapes.

Description

Technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to an organic silicon high thermal conductivity flame-retardant pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] With the rapid development of industry, the existing adhesive tapes on the market have met part of people's needs to a certain extent, and are increasingly used in electronic component systems in the fields of automobiles, household appliances, toys, accessories, communications, and aviation and aerospace. When it comes to environmentally friendly tapes, especially in the aviation and aerospace fields, the requirements for tapes are higher, and flame retardant requirements are required. The so-called flame retardant means that it does not burn in case of fire and self-extinguishes away from the fire. The purpose can be achieved by adding appropriate flame retardants. At present, there are few types of flame-retardant organic a...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/08
CPCC08K2003/2224C08K2003/2227C08K2003/2241C08K2003/323C08K2201/011C08L2201/02C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J183/04C08L83/04C08L77/00C08K13/02C08K3/14C08K5/3445C08K3/22C08K3/32C08K5/14
Inventor 齐登武吴卫均
Owner SHENZHEN NIKTO TAPE NEW MATERIAL CO LTD
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