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Single-component dealcoholization-type organic silicon sealant

A dealcoholized, silicone technology, used in adhesives, other chemical processes, chemical instruments and methods, etc., can solve the problems of lack of "double 85" resistance, unsatisfactory effect, and inability to bond and seal solar modules. To achieve good reinforcement, reduce the requirements of production process, improve the effect of crosslinking density

Inactive Publication Date: 2010-06-30
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] U.S. Patent No. 4,687,829 uses a terminal alkoxy silicon ethylene catalyst to improve storage stability and adhesion, but the effect is unsatisfactory
In Chinese patent CN10101236A, the terminal trimethoxysiloxane is used as the base glue, and the titanate chelate is used as the catalyst system to improve its stability and adhesion, but it is mainly used in various curtain walls and metal structure engineering structures Adhesive sealing, not directly used for adhesive sealing of solar modules
Checked the patents related to dealcoholized silica gel, and there is no report on the performance of "double 85" resistance

Method used

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  • Single-component dealcoholization-type organic silicon sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Hydroxyl Terminated Dimethicone Polymer 60%Wt

[0038] Nano Calcium Carbonate 26%Wt

[0039] Methyltrimethoxysilane 9%Wt

[0040] Ethyl acetoacetate-isopropyl titanate chelate 0.2% Wt

[0041] Fumed Silica 2%Wt

[0042] Tetrabutyl titanate 2%Wt

[0043] Aminopropyltriethoxysilane 0.1%Wt

[0044] Glycidoxypropyltrimethoxysilane 0.1%Wt

[0045] Dimethicone 0.6%Wt

Embodiment 2

[0047] Hydroxyl Terminated Dimethicone Polymer 45%Wt

[0048] Nano Calcium Carbonate 35%Wt

[0049] Methyltriethoxysilane 7%Wt

[0050] Ethyl acetoacetate-isopropyl titanate chelate 0.2% Wt

[0051]Fumed Silica 5%Wt

[0052] Tetrabutyl titanate 0.8%Wt

[0053] Aminopropyltriethoxysilane 1%Wt

[0054] Glycidoxypropyltrimethoxysilane 1%Wt

[0055] Dimethicone 5%wt

Embodiment 3

[0057] Hydroxyl Terminated Dimethicone Polymer 53%Wt

[0058] Nano Calcium Carbonate 30%Wt

[0059] Vinyltrimethoxysilane 6%Wt

[0060] Ethyl Acetoacetate-Isopropyl Titanate Chelate 2%Wt

[0061] Fumed Silica 3%Wt

[0062] Propylisotitanate 0.2%Wt

[0063] Aminopropyltriethoxysilane 0.4%Wt

[0064] Glycidoxypropyltrimethoxysilane 0.4%Wt

[0065] Dimethicone 5%wt

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Abstract

The invention relates to a single-component dealcoholization-type organic silicon sealant which belongs to the technical field of single-component organic silicon sealant and mainly solves the problem of poor adhesiveness and storage stability of the traditional sealant. The single-component dealcoholization-type organic silicon sealant comprises the following components in percentage by weight: 30-70 wt% of hydroxy-terminated poly dimethylsiloxane polymer, 15-50 wt% of nano-scale calcium carbonate, 2-10 wt% of alkoxy silane crosslinker, 0.1-3 wt% of titanate chelate catalyst, 1-5 wt% of thixotropic agent, 0.05-2 wt% of titanate catalyst, 0.1-2 wt% of coupling agent and 0.5- 5wt% of silicone oil plasticizer. The invention has favorable mechanical performance and excellent adhesiveness as well as double-85 resistant performance, has simple construction process and is widely used for splicing and sealing solar modules in the solar photovoltaic industry.

Description

technical field [0001] The invention belongs to the technical field of single-component silicone sealants, and specifically relates to a kind of "double 85" resistance ((85°C, 85% RH) × 1000h after tensile strength, elongation, hardness and other indicators requirements), storage Stable and excellent adhesive sealant, directly used for solar photovoltaic module frame sealing and bonding of junction boxes and other components, effectively protecting silicon wafers from pollution and oxidation, bonding, fixing, sealing and insulating of electronic and electrical parts, Encapsulation and protection of outdoor LED display and backlight. It has high strength and high adhesion, and ensures that the composite film of the bonded component will not yellow. The invention is mainly applied to the bonding and sealing of solar modules in the solar photovoltaic industry. Background technique [0002] U.S. Patent No. 4,687,829 uses a terminal alkoxy silicon ethylene catalyst to improve s...

Claims

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Application Information

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IPC IPC(8): C09K3/10C09J183/06
Inventor 王翠花李天书马燕高阳
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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