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Low-viscosity neutral organic silicone and application thereof

A silicone, low-viscosity technology, applied in adhesives, polymer adhesive additives, film/sheet adhesives, etc., can solve the problems of easy tearing and insufficient flexibility of the covering film, and achieve resistance to cold and heat The effect of good change, easy to spray, good tear resistance and bond strength

Active Publication Date: 2013-07-17
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a low-viscosity neutral organic silica gel and its application. The present invention provides a kind of low-viscosity neutral organic silica gel that does not depend on temperature heating and can be cured in a conventional standard room temperature environment. Within a certain period of time, it can reach the required The silicone coating adhesive with various properties required solves the problem that the coating film is easy to tear and lacks flexibility in the use of existing coating adhesives

Method used

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  • Low-viscosity neutral organic silicone and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Accurately weigh the following raw materials, 100 parts of 1000mPa.s hydroxyl-terminated polydimethylsiloxane, 20 parts of 200mPa.s dimethyl silicone oil, 6 parts of vinyltriisopropoxysilane, (tetramethylguanidine Base) 1 part of propyltrimethoxysilane, 7 parts of film strengthening agent (80 parts of n-heptane, 20 parts of MQ silicone resin (molecular weight 6000), mix at room temperature for 2 hours until uniform), add the above components in sequence In the mixing mixer, vacuumize to -0.1MPa, mix for 1 hour until uniform, N 2 Seal the package and place it for use.

Embodiment 2

[0025] Accurately weigh the following raw materials, 100 parts of 1500mPa.s hydroxyl-terminated polydimethylsiloxane, 20 parts of 100mPa.s dimethyl silicone oil, 6 parts of methyltriisopropoxysilane, (tetramethylguanidine Base) 1 part of propyltrimethoxysilane, 5 parts of film enhancer (60 parts of n-heptane, 20 parts of D20 solvent oil, 20 parts of MQ silicone resin (molecular weight 3000), mix at room temperature for 2 hours until uniform), Put the above components into the mixing mixer in turn, vacuum to -0.1MPa, mix for 1.5 hours until uniform, N 2 Seal the package and place it for use.

Embodiment 3

[0027] Accurately weigh the following raw materials, 100 parts of 6000mPa.s hydroxyl-terminated polydimethylsiloxane, 50 parts of 50mPa.s dimethyl silicone oil, 6 parts of vinyltriisopropoxysilane, (tetramethylguanidine Base) 2 parts of propyltrimethoxysilane, 5 parts of film strengthening agent (60 parts of n-heptane, 20 parts of D40 solvent oil, 20 parts of MQ silicone resin (molecular weight 3000), mix at room temperature for 2 hours until uniform), Put the above components into the mixing mixer in turn, vacuum to -0.1MPa, mix for 2 hours until uniform, N 2 Seal the package and place it for use.

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Abstract

The invention relates to low-viscosity neutral organic silicone and an application of thereof. Raw materials for preparing the organic silicone includes, by weight, 100 parts of polydimethylsiloxane of hydroxyl end, 20-50 parts of plasticizer, 5-10 parts of cross-linking agent, 0.5-2 parts of catalyst and 5-7 parts of film enchanter. The low-viscosity neutral organic silicone is fast in setting time and strong in viscosity; and stripping performance of the low-viscosity neutral organic silicone is significantly improved by above 5N / mm.

Description

technical field [0001] The invention relates to a low-viscosity neutral organic silica gel and its application. Background technique [0002] Coating glue in a narrow sense refers to the early application of various functional electronic products PCB circuit boards, glass, metal and various plastics for protection. The surface of the material after coating should be moisture-proof, insulating and dust-proof. , Anti-corona and other functions. Today, with the rapid development of electronic technology, electronic and electrical products have penetrated into every corner of life. In a broad sense, the application of coating glue has been broadened to be widely used for coating protection on the outer surface of electronic components, electrical modules, circuit boards, and light bulbs. And the coating protection of non-plating parts before electroplating. [0003] In recent years, organic silica gel has developed into the main type of coating glue for electronic devices due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J7/02C09J11/08C09J11/06
Inventor 许愿王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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