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Production method of acidic silicone structural adhesive dedicated to large-plate glass

A technology of acidic silicon and structural adhesives, which is applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., and can solve problems such as poor weight load capacity, easy thickening, and easy discoloration in the bottle

Inactive Publication Date: 2018-06-12
WEIHAI CHENGJING SILICONE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acidic silicone glue, as a common adhesive for bonding and sealing large glass panels, has poor weight load capacity, easy to change color after construction,
[0003] Short storage period, easy thickening in the bottle, solidification of the colloid at the bottom of the bottle during the shelf life and other quality problems limit its application

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0025] A method for producing acidic silicone structural adhesive for large glass plates, characterized in that the silicone sealant is prepared from the following materials according to the weight ratio:

[0026] 80000 viscosity room temperature vulcanized methyl silicone rubber (25℃, mpa.s) 200-220 parts

[0027] 500000 viscosity room temperature vulcanized methyl silicone rubber (25℃, mpa.s) 130-150 parts

[0028] 20000 viscosity room temperature vulcanized methyl silicone rubber (25℃, mpa.s) 250-255 parts

[0029] Simethicone 45-50 parts

[0030] Fumed silica 65-70 parts

[0031] Methyltriacetoxysilane 35-38 parts

[0032] Dibutyltin diacetate 0.5-0.7 parts

[0033] The production steps are as follows:

[0034] (1) After starting the 1100L high-speed disperser, input 80000 viscosity, 500000 viscosity, 20000 viscosity room temperature vulcanized methyl silicone rubber and dimethyl silicone oil in sequence;

[0035] (2) Add methyltriacetoxysilane after vacuum stirring ...

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PUM

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Abstract

The invention relates to a production method of acidic silicone structural adhesive dedicated to large-plate glass. The acidic silicone structural adhesive comprises room-temperature vulcanized methylsilicone rubber, dimethicone, vapor-phase method silicon dioxide, a propyl crosslinking agent and dibutyltin diacetate according to the weight proportion, wherein the room-temperature vulcanized methylsilicone rubber is a supporting raw material, the vapor-phase method silicon dioxide is a filling raw material, the dimethicone is a plasticizer, and methyltriacetoxysilane and the dibutyltin diacetate are functional aids. The invention provides acidic structural adhesive by mainly aiming at the quality problems that the existing silicone adhesive for large-plate glass structure adhesion is low in weight loading capacity, is liable to change color after construction, and short in storage period, the internal part of a bottle is liable to thicken, and adhesive at the bottom of the bottle within the guarantee period is solidified. The acidic structural adhesive is suitable for structure adhesion of large-plate glass with various sizes, and the adhesive does not turn yellow permanently and avoids whitening after adhesive application. The storage life can reach 15 months, the bottom of the bottle does not have dry adhesive, the colloid is not thickened, and the acidic silicone structuraladhesive is ideal acidic silicone structural adhesive dedicated to the large-plate glass.

Description

technical field [0001] The invention relates to a production method of special silicone structural adhesive for large plate glass, in particular to a production method of acidic silicone structural adhesive. Background technique [0002] Acid silicone glass glue is a one-component acid curing sealant, easy to use, fast drying, no sagging, good elasticity and bonding performance, can be used in a wide range of climatic conditions, and has excellent weather resistance And extremely strong anti-ultraviolet, wind and snow, air pollution and other natural erosion performance. Based on its fast-curing product characteristics, it is a weather-resistant and sealing material widely used in the construction industry. As the application of large plate glass in modern architectural structures is becoming more and more common, the specifications and sizes of large plate glass are becoming more and more diverse. Acidic silicone glue, as a common adhesive for bonding and sealing large gl...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/08
CPCC09J183/04C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C08L83/04C08K3/36C08K5/5419C08K5/57
Inventor 蒋进生
Owner WEIHAI CHENGJING SILICONE TECH
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