Preparation method of vinyl silicone oil

A technology of vinyl silicone oil and vinyl ring body, which is applied in the field of preparation of vinyl silicone oil, can solve the problems of poor wear resistance, low hardness of potting glue, influence on use, etc., and achieve the effect of improving wear resistance and hardness

Active Publication Date: 2013-12-25
兆舜科技(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When the vinyl silicone oil prepared by the preparation method of vinyl silicone oil disclosed in the prior art is us

Method used

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  • Preparation method of vinyl silicone oil
  • Preparation method of vinyl silicone oil
  • Preparation method of vinyl silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 1

[0041] A preparation method of vinyl silicone oil, the method comprises the following raw materials in parts by mass:

[0042]

[0043] The method includes the following steps:

[0044]Stir 800 parts of octamethylcyclotetrasiloxane in the reaction kettle, add 1 part of basic catalyst and stir in the above-mentioned reaction kettle, and heat up to 60 ℃ constant temperature and vacuum for 1 hour, add 0.5 parts of the capping agent above In the reaction kettle, stir at a constant temperature of 60 °C for 10 minutes, then add 1 part of vinyl ring body to the above reaction kettle, add the vinyl ring body within 5 minutes, heat up to 90 °C for 6 hours at a constant temperature, and then heat up to 150 °C After maintaining for 1 hour, the temperature is raised again to remove low boilers until there is no low molecular outflow to obtain vinyl silicone oil.

Example Embodiment

[0045] Example 2

[0046] A preparation method of vinyl silicone oil, the method comprises the following raw materials in parts by mass:

[0047]

[0048] Stir 800 parts of octamethylcyclotetrasiloxane in the reaction kettle, add 20 parts of basic catalyst and stir in the above-mentioned reaction kettle, and heat up to 70 ℃ constant temperature vacuum for 0.5 hours, add 20 parts of vinyl capping agent on the In the reaction kettle, stir at a constant temperature of 70 °C for 5 minutes, then add 50 parts of vinyl rings to the above reaction kettle, add the vinyl rings within 10 minutes, heat up to 100 °C and keep the constant temperature for 4 hours, and then heat up to 100°C. After maintaining at 160° C. for 0.5 hours, the temperature is raised to remove low-boiling substances until there is no low-molecular outflow, to obtain vinyl silicone oil.

Example Embodiment

[0049] Example 3

[0050] A preparation method of vinyl silicone oil, the method comprises the following raw materials in parts by mass:

[0051]

[0052] Stir 800 parts of octamethylcyclotetrasiloxane in the reaction kettle, add 10 parts of basic catalyst and stir in the above-mentioned reaction kettle, and heat up to 65 ° C and keep it in vacuum for 0.7 hours, add 10 parts of vinyl capping agent on the In the reaction kettle, stir at a constant temperature of 65°C for 7 minutes, then add 25 parts of vinyl rings in the above-mentioned reaction kettle, heat up to 95°C for 5 hours at a constant temperature, then heat up to 155°C and keep for 0.8 hours and then heat up to remove Low boiler to no low molecular outflow, namely vinyl silicone oil.

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Abstract

The invention relates to a preparation method of vinyl silicone oil, which comprises the following steps: adding 800 parts of octamethylcyclotetrasiloxane into a reaction kettle, stirring, adding 1-20 parts of alkaline catalyst into the reaction kettle, stirring, heating to 60-70 DEG C, keeping the temperature constant in a vacuum for 0.5-1 hour, adding 0.5-20 parts of vinyl terminating agent into the reaction kettle, stirring at the constant temperature of 60-70 DEG C for 5-10 minutes, adding 1-50 parts of vinyl cycle into the reaction kettle, stirring, heating to 90-100 DEG C, keeping the temperature constant for 4-6 hours, heating to 150-160 DEG C, keeping the temperature constant for 0.5-1 hour, and heating to remove low-boiling-point substances in vacuum until no micromolecules flow out, thereby obtaining the vinyl silicone oil. The vinyl silicone oil prepared by the method is used for a potting adhesive, and can enhance the wear resistance and hardness of the potting adhesive.

Description

technical field [0001] The invention relates to a preparation method of vinyl silicone oil. Background technique [0002] Potting glue, also known as electronic glue, is a broad term used for bonding, sealing, potting and coating protection of electronic components. The potting glue is liquid before it is cured and has fluidity. The viscosity of the glue varies according to the material, performance and production process of the product. Only when the potting glue is fully cured can its use value be realized. After curing, it can play the role of waterproof, moisture-proof, dust-proof, insulation, heat conduction, confidentiality, corrosion resistance, temperature resistance and shock resistance. There are many types of electronic potting adhesives. From the type of material, the most common types are mainly three types, namely epoxy resin potting adhesive, silicone resin potting adhesive, and polyurethane potting adhesive. When using silicone gel for potting, no low molec...

Claims

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Application Information

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IPC IPC(8): C08G77/20C08G77/04C08L83/07
Inventor 黄安友陈芳李柯莲
Owner 兆舜科技(广东)有限公司
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