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High-strength organic silicon foamed plastic and preparation method thereof

A foamed plastic and silicone technology, applied in the foamed plastics field, can solve the problem of low tear resistance of high-strength silicone foam, poor quality of high-strength silicone foam, high density of high-strength silicone foam, etc. problem, to achieve the effect of low density, improved resilience and high foaming ratio

Active Publication Date: 2021-03-30
漳州普瑞邦节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the current preparation method of foamed plastics, the catalysts used in the preparation are mainly Group VIII transition metals, the cost is very high, and it is impossible to recycle, resulting in high cost of preparing high-strength silicone foamed plastics, and the prepared high-strength organic silicon foamed plastics are relatively expensive. The density of silicon foamed plastics is relatively large, which causes the poor quality of the prepared high-strength silicone foamed plastics, and the tear resistance of the prepared high-strength silicone foamed plastics is not high, so there is an urgent need for a method with low preparation cost, low density and High-strength organosilicon foam plastic with high tear resistance and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The high-strength organosilicon foam provided by the present invention is composed of components according to the following parts by weight:

[0037] 100 parts by weight of hydroxyl-terminated polymethyl silicone resin;

[0038] 10 parts by weight of vinyl-terminated silicone oil;

[0039] Foaming agent 4 parts by weight;

[0040] 2 parts by weight of pentaerythritol;

[0041] 6 parts by weight of crosslinking agent;

[0042] 20 parts by weight of filler;

[0043] Catalyst 1 weight part;

[0044] 1 part by weight of epoxy resin.

[0045] Specifically, the foaming agent is one or more of N, N-dinitrosopentamethylenetetramine, N,N'-dimethylterephthalamide and trinitrosotrimethylenetriamine Mixed in any proportion, it has the advantages of large gas generation, high foaming efficiency, no discoloration, no pollution and low cost.

[0046] Specifically, the epoxy resin is dispersed and filled in paraffin wax or palmitic acid or stearic acid as a carrier in a hollow s...

Embodiment 2

[0059] The high-strength organosilicon foam provided by the present invention is composed of components according to the following parts by weight:

[0060] 120 parts by weight of hydroxyl-terminated polymethyl silicone resin;

[0061] Vinyl-terminated silicone oil 20 parts by weight;

[0062] Foaming agent 10 parts by weight;

[0063] Pentaerythritol 16 parts by weight;

[0064] 14 parts by weight of crosslinking agent;

[0065] 30 parts by weight of filler;

[0066] Catalyst 10 parts by weight;

[0067] 10 parts by weight of epoxy resin.

[0068] Specifically, the foaming agent is one or more of N, N-dinitrosopentamethylenetetramine, N,N'-dimethylterephthalamide and trinitrosotrimethylenetriamine Mixed in any proportion, it has the advantages of large gas generation, high foaming efficiency, no discoloration, no pollution and low cost.

[0069] Specifically, the epoxy resin is dispersed and filled in paraffin wax or palmitic acid or stearic acid as a carrier in a holl...

Embodiment 3

[0080] The high-strength organosilicon foam provided by the present invention is composed of components according to the following parts by weight:

[0081] 102 parts by weight of hydroxyl-terminated polymethyl silicone resin;

[0082] Vinyl-terminated silicone oil 12-parts by weight;

[0083] Foaming agent 6 parts by weight;

[0084] 4 parts by weight of pentaerythritol;

[0085] 8 parts by weight of crosslinking agent;

[0086] 18 parts by weight of filler;

[0087] 3 parts by weight of catalyst;

[0088] 3 parts by weight of epoxy resin.

[0089] Specifically, the foaming agent is one or more of N, N-dinitrosopentamethylenetetramine, N,N'-dimethylterephthalamide and trinitrosotrimethylenetriamine Mixed in any proportion, it has the advantages of large gas generation, high foaming efficiency, no discoloration, no pollution and low cost.

[0090] Specifically, the epoxy resin is dispersed and filled in paraffin wax or palmitic acid or stearic acid as a carrier in a hol...

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PUM

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Abstract

The invention discloses high-strength organic silicon foamed plastic and a preparation method thereof, and belongs to the technical field of foamed plastic, and the high-strength organic silicon foamed plastic is prepared from the following components in parts by weight: 100-120 parts of hydroxyl-terminated polymethyl silicone resin, 10-20 parts of vinyl-terminated silicone oil, 4-10 parts of foaming agent, 2-16 parts of pentaerythritol, 6-14 parts of cross-linking agent, 20-30 parts of filler. 1-10 parts by weight of a catalyst and 1-10 parts by weight of epoxy resin. According to the invention, the prepared high-strength organic silicon foamed plastic has the effects of low preparation cost, low density and high tear strength.

Description

technical field [0001] The invention relates to the technical field of foamed plastics, in particular to high-strength organosilicon foamed plastics and a preparation method thereof. Background technique [0002] Foam material is a composite polymer material composed of gas and solid phases inside. It is a material prepared by gas foaming within a specific polymer system viscosity range. Foam materials are used in daily necessities, industry, agriculture, transportation, Military industry, aerospace industry and other aspects have been widely used. Especially in packaging, daily necessities, ships, vehicles, aircraft and construction, it has been reused. [0003] In the current preparation method of foamed plastics, the catalysts used in the preparation are mainly Group VIII transition metals, the cost is very high, and it is impossible to recycle, resulting in high cost of preparing high-strength silicone foamed plastics, and the prepared high-strength organic silicon foam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L83/05C08L63/00C08K7/26C08K5/19C08K5/053C08J9/10
CPCC08J9/107C08J9/0061C08J9/0028C08J9/0023C08J9/0066C08J2383/04C08J2483/07C08J2483/05C08J2463/00C08J2203/04
Inventor 范犁生
Owner 漳州普瑞邦节能科技有限公司
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