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Sealant with good wettability for electronic equipment and preparation method of the sealant

A technology of electronic equipment and wettability, which is applied in the field of sealants, can solve the problems such as the wettability of sealants that have not been raised, and achieve the effects of avoiding coating difficulties, effectively controlling the viscosity of the system, and improving tensile properties

Active Publication Date: 2021-04-16
湖南梵鑫科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN102516928B discloses a silicone sealant for electronic products and its preparation and use method. The published patent emphasizes how to improve the thermal conductivity of the sealant for electronic products, but does not propose how to improve the wettability of the sealant

Method used

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  • Sealant with good wettability for electronic equipment and preparation method of the sealant
  • Sealant with good wettability for electronic equipment and preparation method of the sealant

Examples

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preparation example Construction

[0042] A second aspect of the present invention provides a method for preparing a sealant with good wettability for electronic equipment, comprising the following steps:

[0043] Add polymer resin, fillers, additives, and acrylic ester compounds into a mixer and mix and stir at a stirring speed of 600-1500 rpm for 30-90 minutes to obtain the product.

Embodiment 1

[0048] A sealant with good wettability for electronic equipment. The raw materials are prepared in parts by weight, including: 100 parts of hydroxyl-terminated polydimethylsiloxane, 8 parts of filler, 3.5 parts of auxiliary agent, and 3 parts of methyl methacrylate .

[0049] Hydroxyl-terminated polydimethylsiloxane with a viscosity of 30,000cs at 25°C was purchased from Wuxi Ruiheer Environmental Protection Technology Co., Ltd.

[0050] The filler is fumed white carbon black and mica powder; the weight ratio of fumed white carbon black and mica powder is 1:0.6.

[0051] Fumed silica, with a particle size of 15-30nm, was purchased from Zhejiang Jiupeng New Material Co., Ltd.; mica powder was purchased from Lingshou County Baofeng Mica Processing Co., Ltd.

[0052] The auxiliary agents are 3 parts of silane coupling agent and 0.5 part of benzoyl peroxide.

[0053] The silane coupling agent is 3-glycidyloxypropyltrimethoxysilane and γ-methacryloxypropyltrimethoxysilane in a weig...

Embodiment 2

[0057] A sealant with good wettability for electronic equipment. The raw materials are prepared in parts by weight, including: 100 parts of hydroxyl-terminated polydimethylsiloxane, 6 parts of filler, 3.5 parts of auxiliary agent, and 3 parts of methyl methacrylate .

[0058] Its specific implementation method is the same as Example 1, and the difference with Example 1 is 3 parts of fumed white carbon black.

[0059] For a preparation method of a sealant with good wettability for electronic equipment, refer to Example 1.

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Abstract

The invention belongs to the technical field of sealants, and particularly relates to a sealant with good wettability for electronic equipment and a preparation method of the sealant. A sealant with good wettability for electronic equipment is prepared from the following raw materials in parts by weight: 80-120 parts of polymer resin, 1-10 parts of filler and 1-10 parts of auxiliaries. The sealant with good wettability for the electronic equipment, prepared by the invention, has good wettability, and can show more excellent sealing performance on the electronic equipment. According to the sealant with good wettability for the electronic equipment, the system viscosity is effectively controlled in the synthesis process, so that the problem that coating is difficult due to too high viscosity is solved.

Description

technical field [0001] The invention belongs to the technical field of sealants, and more specifically relates to a sealant with good wettability for electronic equipment and a preparation method thereof. Background technique [0002] In today's world, the era calls for an environmentally friendly life and the pursuit of environmental protection. Therefore, environmental protection is not only an important symbol of social development and progress, but also an important condition for human survival. With the progress of society and the rapid development of electronic products, researchers are also committed to producing electronic product adhesives with environmentally friendly raw materials and excellent performance. [0003] Due to the particularity of electronic products and electronic equipment, the required performance of sealants for such products has also been further improved. In particular, the waterproof performance and insulation performance of this type of seala...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06
Inventor 苏晓明
Owner 湖南梵鑫科技有限公司
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