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Long-lasting, high-humidity and mold-proof silicone sealant

A silicone sealant, high humidity technology, applied in adhesives, non-polymer adhesive additives, grafted polymer adhesives, etc., can solve problems such as poor anti-mildew effect

Active Publication Date: 2016-10-12
安徽斯迈特新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor anti-mildew effect in the prior art, and provide a long-acting high-humidity anti-mildew silicone sealant with good anti-mildew effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh the following raw materials in parts by weight: α-hydrogen-ω-hydroxyl-polydimethylsiloxane 42kg, 6-(beta-D-glucopyranosyloxy)-7-hydroxyl-2H-1- Benzofuran-2-one 9kg, dextro-trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid-3,4,5,6-tetra Hydropeptidimide 21kg, trimethyl (1-methylvinyloxy) silane 10kg, 2-ethylhexyl p-methoxycinnamate 27kg, 2-[2-(2-ethoxyethoxy base) ethoxyl] ethanol 34kg, diethoxydimethylsilane 28kg, 11a-hydroxy-16,17a-epoxyprogesterone 6kg, ethoxylated trimethylolpropane triacrylate 13kg.

[0028] The preparation method of the long-acting high-humidity mildew-proof silicone sealant in this example: mix α-hydrogen-ω-hydroxyl-polydimethylsiloxane, 6-(beta-D-glucopyranosyloxy)-7 -Hydroxy-2H-1-benzofuran-2-one, D-trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid-3,4 , Add 5,6-tetrahydropeptidimide and trimethyl(1-methylvinyloxy)silane into the planetary mixer, vacuumize, the vacuum degree is 0.09MPa, the speed i...

Embodiment 2

[0030] Weigh the following raw materials in parts by weight: α-hydrogen-ω-hydroxyl-polydimethylsiloxane 45kg, 6-(beta-D-glucopyranosyloxy)-7-hydroxyl-2H-1- Benzofuran-2-one 3kg, D-trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid-3,4,5,6-tetra Hydropeptidimide 25kg, trimethyl (1-methylvinyloxy) silane 13kg, 2-ethylhexyl p-methoxycinnamate 21kg, 2-[2-(2-ethoxyethoxy base) ethoxyl] ethanol 36kg, diethoxydimethylsilane 31kg, 11a-hydroxy-16,17a-epoxyprogesterone 2kg, ethoxylated trimethylolpropane triacrylate 15kg.

[0031] The preparation method of the long-acting high-humidity mildew-proof silicone sealant in this example is the same as that in Example 1.

Embodiment 3

[0033] Weigh the following raw materials in parts by weight: α-hydrogen-ω-hydroxyl-polydimethylsiloxane 48kg, 6-(beta-D-glucopyranosyloxy)-7-hydroxyl-2H-1- Benzofuran-2-one 6kg, dextro-trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid-3,4,5,6-tetra Hydropeptidimide 17kg, trimethyl (1-methylvinyloxy) silane 16kg, 2-ethylhexyl p-methoxycinnamate 24kg, 2-[2-(2-ethoxyethoxy base) ethoxyl] ethanol 32kg, diethoxydimethylsilane 34kg, 11a-hydroxyl-16,17a-epoxyprogesterone 4kg, ethoxylated trimethylolpropane triacrylate 11kg.

[0034] The preparation method of the long-acting high-humidity mildew-proof silicone sealant in this example is the same as that in Example 1.

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Abstract

The invention relates to a sealing material, in particular to long-lasting, high-humidity and mold-proof silicone sealant. The long-lasting, high-humidity, mold-proof silicone sealant is prepared from the following raw materials: alpha-hydro-omega-hydroxy-polydimethylsiloxane, 6-(beta-D-glucopyranosyl-oxy)-7-hydroxy-2H-1-benzofuran-2-one, (1,3,4,5,6,7-hexahydro-1,3-dioxo-2H-isoindol-2-yl)methyl (1R-trans)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate, trimethyl[(1-methyl-ethenyl)oxy]-silane, 2-ethylhexyl 4-methoxycinnamate, and the like. The long-lasting, high-humidity and mold-proof silicone sealant is good in mold-proof performance, relatively long in storage time, simple in preparation method, relatively short in surface drying time, shortened in work time, improved in work efficiency, and free of yellowing, and is suitable for promotion and application in the field of mold-proof silicone sealant.

Description

technical field [0001] The invention relates to a sealing material, in particular to a long-acting high-humidity mildew-proof silicone sealant. Background technique [0002] One-component room temperature vulcanized silicone rubber, commonly known as silicone sealant, is made of polydimethylsiloxane as the main raw material, supplemented by crosslinking agent, filler, plasticizer, coupling agent, and catalyst mixed in a vacuum state. The resulting paste solidifies at room temperature through a condensation reaction with moisture in the air to form elastic silicone rubber. Due to its high tensile strength, strong bonding force, excellent electrical properties and chemical inertness, it also has properties such as weather resistance, flame resistance, moisture resistance, breathability, vibration resistance and adaptability to changes in cold and heat, and is suitable for bonding The wide range makes its application value very large, and it is widely used in most building mat...

Claims

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Application Information

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IPC IPC(8): C09J151/08C09J11/06C08F283/12
CPCC08F283/122C08K5/1545C08K5/5419C09J11/06C09J151/08
Inventor 田建国
Owner 安徽斯迈特新材料股份有限公司
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