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Organic silicon pressure sensitive adhesive

A technology of silicon pressure-sensitive adhesives and silicone adhesives, which can be used in adhesives, non-polymer adhesive additives, adhesive additives, etc., and can solve problems such as poor exhaust.

Inactive Publication Date: 2014-06-04
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a silicone pressure-sensitive adhesive, which is used to prepare a silicone adhesive protective film, and aims to solve the problem of poor exhaust of the existing silicone adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Example: a silicone pressure-sensitive adhesive, which is prepared by reacting the following substances in mass percent:

[0021] Silicone adhesive 50%;

[0022] Hydroxypolysiloxane 3%;

[0023] Stannous octoate 3%;

[0024] Isopropyl tris(dodecylbenzenesulfonyl) titanate 2%;

[0025] Alkynol 2%;

[0026] Tackifying resin 20%;

[0027] Azobisisobutyronitrile 20%.

[0028] The aforementioned hydroxypolysiloxane is α,ω-dihydroxypolysiloxane.

[0029] The above-mentioned tackifying resin is MQ resin.

[0030] The above-mentioned alkynyl alcohol is propynyl alcohol.

[0031] Preparation:

[0032] The first step is to select a silicone adhesive and add other additives such as hydroxypolysiloxane 3%; stannous octoate 3%; isopropyl tris(dodecylbenzenesulfonyl) titanate 2%; 2% acetylenic alcohol; 20% tackifying resin; 20% azobisisobutyronitrile, etc., add one by one in order and stir evenly.

[0033] The second step is to select the appropriate temperature according ...

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Abstract

The invention discloses an organic silicon pressure sensitive adhesive which is prepared by reacting the following substances in percentage by mass: 45-50% of organic silicon adhesive, 2-4% of hydroxyl polysiloxane, 2-5% of stannous octoate, 2-3% of isopropyl tri(dodecylbenzene phenylsulfonyl) titanate, 0.5-5% of alkynol, 15-30% of tackifying resin and 15-25% of azo-compound foaming agent, wherein the azo-compound foaming agent is any one of azodicarbonamide, azodiisobutyronitrile, azo-dioctyl phthalate diisopropyl ester, azo-dioctyl phthalate diethyl ester, diazo-aminobenzene or azo-dibarium formate; the hydroxyl polysiloxane is alpha,omega-dyhydroxy polysiloxane; the tackifying resin is a MQ resin. The structural size of the micro pore structure of the organic silicon adhesive can be adjusted, the micro pores can be arranged densely or sparsely, and the problem that the conventional organic silicon adhesive is not smooth in gas discharge is solved.

Description

technical field [0001] The invention relates to a silicone pressure-sensitive adhesive, which belongs to the technical field of adhesive materials. Background technique [0002] The adhesive of the silicone adhesive is a linear high molecular mass prepared by one or several linear, cyclic or branched siloxanes under the action of a catalyst through reactions such as equilibrium, addition or condensation. Or cross-linked siloxane composition. There are mainly two types of silicone adhesives: rubber type and resin type. Silicone adhesives have the characteristics of high temperature resistance, stable adhesion and good durability, and are widely used in various fields such as aviation, navigation, spacecraft, rockets and missiles, atomic energy, and electronic and electrical industries. With the gradual expansion of the application range of silicone adhesive tapes, all walks of life have put forward new requirements for the quality and properties of silicone adhesive tapes. ...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J183/06C09J11/06C08J9/10
Inventor 金闯包静炎
Owner SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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