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Production method of solid silica gel foam

A production method and technology of silica gel, which is applied in the field of silica gel foam production, can solve problems such as the inability to realize solid high-strength silica gel foam processing, and achieve the effects of enhancing toughness and strength, forming high-density silica gel foam compositions, and strengthening density

Inactive Publication Date: 2021-04-06
合肥艺光高分子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a production method of solid silica gel foam to solve the problem that the current traditional silica gel foam production process can only process soft silica gel foam and cannot process solid high-strength silica gel foam

Method used

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  • Production method of solid silica gel foam

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Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a production method of solid silica gel foam, first put the silicone rubber, foaming agent and coloring agent into the foaming machine and carry out the mixing at a speed of 3000r / min and a stirring time of 30min to form a foam to be foamed. The silicone foam composition to be foamed, and then the silicone foam composition to be foamed is left to stand, so that the internal foaming agent starts to function, that is, the air enters into the silicone rubber to form a foamed silicone foam composition, and then Pour the foamed silica gel foam composition into a centrifugal device for separation, so that 15% of the air is discharged to form a silica gel foam composition to be formed, and then pour the silica gel foam composition to be formed into Before forming the mold, apply the release agent to the inner wall of the forming mold, then pour the silicone foam composition to be formed into the forming mold for shaping, and form the silicone foam co...

Embodiment 2

[0033] Such as figure 1 As shown, a production method of solid silica gel foam, first put the silicone rubber, foaming agent and coloring agent into the foaming machine and carry out the mixing at a speed of 3000r / min and a stirring time of 30min to form a foam to be foamed. The silicone foam composition to be foamed, and then the silicone foam composition to be foamed is left to stand, so that the internal foaming agent starts to function, that is, the air enters into the silicone rubber to form a foamed silicone foam composition, and then Pour the foamed silica gel foam composition into a centrifugal device for separation, so that 20% of the air is discharged to form a silica gel foam composition to be formed, and then pour the silica gel foam composition to be formed into Before forming the mold, apply the release agent to the inner wall of the forming mold, then pour the silicone foam composition to be formed into the forming mold for shaping, and form the silicone foam co...

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PUM

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Abstract

The invention discloses a production method of solid silica gel foam. The production method comprises multiple groups of processes of stirring and mixing, standing treatment, centrifugal treatment, shaping treatment, resin addition, pressurizing treatment and polishing treatment. By adopting a centrifugal mode, part of air in a foamed silica gel foam composition can be exhausted in the earlier stage, the density of the foamed silica gel foam composition is improved, and the number of air holes in the silica gel foam composition is reduced to a certain degree; then a resin material is added in the production process, so that the toughness and strength of the silica gel foam composition are greatly enhanced, and the silica gel foam composition has certain pressure resistance and supporting performance; and finally, through the mutual matching effect of a pressurizing process and a heating process, the curing speed of the silica gel foam composition is increased, the production efficiency is improved, in addition, redundant air in holes in the silica gel foam composition is further extruded and exhausted, the density of the silica gel foam composition is further enhanced, and finally, the high-density silica gel foam composition is formed.

Description

technical field [0001] The invention relates to the technical field of silica gel foam production, in particular to a production method of solid silica gel foam. Background technique [0002] Silica gel has the characteristics of organic polymer elastomers, and has the adaptability of inorganic substances to a wide range of high and low temperatures. Silicone products have become the preferred materials for military aerospace, medical, automotive, construction and other fields. Silicone foam not only maintains the original excellent performance of silica gel, but also has the characteristics of light weight and good elasticity, so the field of application has been greatly extended. [0003] According to the above, although the silicone foam in the prior art has the advantages of light weight and good elasticity, it lacks support and certain strength, thus restricting the application in different environments and industries. Only soft silicone foam can be processed, so the p...

Claims

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Application Information

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IPC IPC(8): B29C69/00
CPCB29C69/00
Inventor 胡国胜
Owner 合肥艺光高分子材料科技有限公司