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Shock-proof insulation sheet

An insulating sheet, a certain amount of technology, applied in insulators, organic insulators, springs/shock absorbers, etc., can solve the problems of air tightness and safety performance discount, uneven cost performance of gaskets, low service life and durability, etc. , to achieve the effects of low manufacturing cost, reasonable composition of ingredients and long service life

Inactive Publication Date: 2011-07-27
常熟市双华电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in material selection and preparation process, the cost performance of gaskets is uneven, the service life and durability are often relatively low, and frequent replacement and inspection are required, especially for some equipment with relatively large vibration, the loss of gaskets increases, and the airtight compromised performance and safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The specific implementation steps are as follows:

[0017] a) Material selection and preparation, the percentage ratio of each component of the shockproof insulation sheet is: elastic polyurethane 65%, reinforcing rubber 20%, coupling agent 5%, catalyst 4%, structure inhibitor 6%.

[0018] b) Blending and smelting, first, add elastic polyurethane and reinforcing rubber into the melting furnace for heating and melting, the temperature is controlled at 240°C, and smelting for 40 minutes; then, sequentially add coupling agent, catalyst and structural inhibitor to mix and stir, the time is 2 hours; finally, add a slag remover to remove surface suspended impurities; the coupling agent is a silane coupling agent, the catalyst is an organic titanium chelating agent, the structure inhibitor is dichlorodiphenylsilane, and the slag remover is Vita DFC -300.

[0019] c) aging treatment, the aging treatment time is 20 hours at normal temperature.

[0020] d) vulcanization treatme...

Embodiment 2

[0023] The specific implementation steps are as follows:

[0024] a) Material selection and preparation, the percentage ratio of each component of the shockproof insulation sheet is: elastic polyurethane 67%, reinforcing rubber 20%, coupling agent 5%, catalyst 4%, structure inhibitor 4%.

[0025] b) Mixing and smelting, first, add elastic polyurethane and reinforcing rubber into the melting furnace for heating and melting, the temperature is controlled at 280°C, and smelting for 40 minutes; then, add coupling agent, catalyst and structural inhibitor in sequence to mix and stir, the time is 2 hours; finally, add a slag remover to remove the suspended impurities on the surface; the coupling agent is a titanate coupling agent, the catalyst is an organic titanium chelating agent, the structure inhibitor is hexamethylhexasilane, and the slag remover is Vita DFC-300.

[0026] c) aging treatment, the aging treatment time is 22 hours at normal temperature.

[0027] d) vulcanization ...

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PUM

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Abstract

The invention discloses a shock-proof insulation sheet, which is prepared by the following steps of: adding a certain quantity of coupling agent, catalyst and structure inhibitor into elastic polyurethane and reinforced rubber serving as major raw materials in a smelting process; and performing sulfur treatment and hot press molding. The shock-proof insulation sheet disclosed by the invention has reasonable component preparation, a scientific machining process, good shock resistance, moisture resistance, sealing performance and insulating performance, low manufacturing cost and long service life, and can be widely applied to various types of electronic appliance equipment.

Description

technical field [0001] The invention relates to a shockproof insulating sheet, which belongs to the technical field of electronic components. Background technique [0002] A gasket is a mechanical seal between two objects, usually to prevent leakage under pressure between the two objects. Since machined surfaces can never be perfect, irregularities can be filled with shims. Gaskets are usually made of sheet materials such as paper pads, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass, or plastic polymers such as polyvinyl chloride. [0003] There are many types of gaskets on electronic equipment, which are shockproof, moisture-proof, waterproof, breathable, ozone-resistant, weather-resistant, weak-acid and weak-alkali resistant, etc., and are widely used. However, due to the difference in material selection and preparation process, the cost performance of gaskets is uneven, the service life and durability are often relatively low, and frequ...

Claims

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Application Information

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IPC IPC(8): H01B17/58H01B17/60H01B3/18F16F1/36C08L75/04C08L21/00C08K5/54
Inventor 戴卫刚
Owner 常熟市双华电子有限公司
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