Silicone weather-proof sealant and preparation method thereof

A sealant and weather-resistant technology, which is applied in chemical instruments and methods, adhesives, and other chemical processes, can solve the problems of sealant elasticity and elongation not meeting the requirements, foaming, cracking, etc., and achieve excellent weather aging resistance , good compatibility, and the effect of improving application value

Inactive Publication Date: 2015-06-03
HENAN GUIBAO ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The elasticity and elongation of the sealant cannot meet the requirements, and cracking, wrinkling, and foaming will occur during the project

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The silicone weather-resistant sealant in this example is composed of the following raw materials in parts by weight: 55 parts of room temperature vulcanized methyl silicone rubber with a viscosity of 20000 mPa·s, 145 parts of room temperature vulcanized methyl silicone rubber with a viscosity of 80000 mPa·s, and a viscosity of 10 parts of 201 methyl silicone oil with a viscosity of 500 mPa s, 37.5 parts of 201 methyl silicone oil with a viscosity of 100 mPa s, 200 parts of nano-active calcium carbonate, 75 parts of calcium carbonate, 25 parts of silicon dioxide, methyl tributyl ketoxime 30 parts of silane, 7 parts of di-n-butyltin dilaurate, 1 part of aminopropyltriethoxysilane, 1.5 parts of propyltrimethoxysilane, 15 parts of carbon black;

[0023] Prepared by the following steps:

[0024] (1) Add room temperature vulcanized methyl silicone rubber of various viscosities, 201 methyl silicone oil with a viscosity of 500mPa·s, nano-active calcium carbonate, calcium carbo...

Embodiment 2

[0028] The silicone weather-resistant sealant of this embodiment includes the following raw materials in parts by weight: 50 parts of room temperature vulcanized methyl silicone rubber with a viscosity of 25000 mPa·s, 130 parts of room temperature vulcanized methyl silicone rubber with a viscosity of 90000 mPa·s, and a viscosity of 500 mPa·s 8 parts of 201 methyl silicone oil of s, 22 parts of 201 methyl silicone oil with a viscosity of 200 mPa·s, 180 parts of nano-active calcium carbonate, 70 parts of calcium carbonate, 20 parts of silicon dioxide, and 20 parts of methyl tributylketoxime silane 5 parts, 5 parts of di-n-butyltin dilaurate, 1 part of aminopropyltriethoxysilane, 1 part of propyltrimethoxysilane, and 10 parts of carbon black.

[0029] Prepared by the following steps:

[0030] (1) Add room temperature vulcanized methyl silicone rubber of various viscosities, 201 methyl silicone oil with a viscosity of 500mPa·s, nano-active calcium carbonate, calcium carbonate, and...

Embodiment 3

[0034] The silicone weather-resistant sealant in this example includes the following raw materials in parts by weight: 60 parts of room temperature vulcanized methyl silicone rubber with a viscosity of 15000 mPa s, 160 parts of room temperature vulcanized methyl silicone rubber with a viscosity of 70000 mPa s and a viscosity of 400 mPa s 15 parts of 201 methyl silicone oil, 45 parts of 201 methyl silicone oil with a viscosity of 100mPa·s, 210 parts of nano-active calcium carbonate, 90 parts of calcium carbonate, 30 parts of silicon dioxide, 40 parts of methyl tributyl ketoxime silane, 10 parts of di-n-butyltin dilaurate, 2 parts of aminopropyltriethoxysilane, 3 parts of propyltrimethoxysilane, 20 parts of carbon black.

[0035] Prepared by the following steps:

[0036] (1) Add room temperature vulcanized methyl silicone rubber of various viscosities, 201 methyl silicone oil with a viscosity of 400mPa·s, nano-active calcium carbonate, calcium carbonate, and silicon dioxide into...

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Abstract

The invention belongs to the technical field of adhesives, and in particular relates to a silicone weather-proof sealant and a preparation method thereof. The silicone weather-proof sealant disclosed by the invention is prepared from the following raw materials: room-temperature vulcanized methyl silicone rubber, 201 methyl silicone oil, nanometre activated calcium carbonate, calcium carbonate, silica, methyltrissilane, di-n-butyltin dilaurate, aminopropyltriethoxysilane, trimethoxypropylsilane and a pigment. The silicone weather-proof sealant disclosed by the invention is good in adhesion and tensile strength, excellent in weather ageing resistance, and great in weather resistance, vibration resistance, moisture resistance, odour resistance, cold-heat change adaptability, and the like.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a silicone weather-resistant sealant and a preparation method thereof. Background technique [0002] At present, the modernization of urban buildings requires more energy saving, waterproof, heat insulation and comfort of buildings, and the sealing of joints is also more and more valued by the construction industry, which greatly promotes the development of building joint sealants. The continuous expansion of construction demand promotes the continuous growth of the demand for silicone structural sealants, and technological progress promotes the development of silicone structural sealants. [0003] Silicone weather-resistant adhesive is mainly used for weather-resistant joint sealing of various glass curtain walls and aluminum veneer curtain walls, and is used for waterproof sealing. Acidic silicone glue will corrode or fail to bond copper, brass (and other copper-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09J11/04C09J11/06C09K3/10
Inventor 王绍峰赵楠楠姬经纬胡喜宋延武
Owner HENAN GUIBAO ENERGY TECH
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