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Double-component, flame-retarding and quick-curing silicone sealant for hollow glass

A silicone sealant, two-component technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems affecting the mechanical strength and bonding performance of silicone sealants, and achieve construction efficiency High, excellent mechanical properties, long storage time effect

Inactive Publication Date: 2017-07-25
西卡(江苏)工业材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the flame retardant silicone sealant formula, in order to ensure its flame retardant performance, more powder fillers (10%~40%) need to be added, but this will affect the mechanical strength and bonding performance of the silicone sealant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: A two-component flame-retardant and fast-curing silicone sealant for insulating glass, including component A and component B, the component A is prepared from the following components in parts by mass: α , 65 parts of omega-terminated hydroxyl polydimethylsiloxane, 44 parts of flame retardant pulp, 2 parts of fumed silica and 8 parts of coupling agent; the B component is prepared from the following parts by mass of: 12 parts of plasticizer, 6 parts of crosslinking agent, 2 parts of tackifier and 0.1 part of organic catalyst.

[0017] Wherein, the flame-retardant slurry is compounded with aluminum hydroxide, magnesium hydroxide or zinc borate powder and nitrogen-phosphorus flame retardant to obtain a flame-retardant powder filler, and then the flame-retardant powder filler and the base polymer Mixing, dehydration and prefabrication to obtain flame retardant pulp; the coupling agent is γ-aminopropyltriethoxysilane; the crosslinking agent is methyltrimethoxysila...

Embodiment 2

[0018] Example 2: A two-component flame-retardant and fast-curing silicone sealant for insulating glass, including component A and component B, the component A is prepared from the following components in parts by mass: α , 60 parts of omega-terminated hydroxyl polydimethylsiloxane, 50 parts of flame retardant pulp, 3 parts of fumed silica and 10 parts of coupling agent; the B component is prepared from the following parts by mass of: 15 parts of plasticizer, 8 parts of crosslinking agent, 1 part of tackifier and 0.1 part of organic catalyst.

[0019] Wherein, the flame-retardant slurry is compounded with aluminum hydroxide, magnesium hydroxide or zinc borate powder and nitrogen-phosphorus flame retardant to obtain a flame-retardant powder filler, and then the flame-retardant powder filler and the base polymer Mixing, dehydration and prefabrication to obtain flame retardant pulp; the coupling agent is γ-aminopropyltriethoxysilane; the crosslinking agent is ethyltrimethoxysilan...

Embodiment 3

[0020] Example 3: A two-component flame-retardant and fast-curing silicone sealant for insulating glass, including component A and component B, the component A is prepared from the following components in parts by mass: α , 70 parts of omega-terminated hydroxyl polydimethylsiloxane, 50 parts of flame retardant pulp, 2 parts of fumed silica and 8 parts of coupling agent; the B component is prepared from the following parts by mass of: 15 parts of plasticizer, 5 parts of crosslinking agent, 1 part of tackifier and 0.2 part of organic catalyst.

[0021] Wherein, the flame-retardant slurry is compounded with aluminum hydroxide, magnesium hydroxide or zinc borate powder and nitrogen-phosphorus flame retardant to obtain a flame-retardant powder filler, and then the flame-retardant powder filler and the base polymer Mixing, dehydration and prefabrication to obtain flame retardant pulp; the coupling agent is γ-aminopropyltriethoxysilane; the crosslinking agent is methyltriethoxysilane...

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Abstract

The invention discloses a double-component, flame-retarding and quick-curing silicone sealant for hollow glass. The double-component, flame-retarding and quick-curing silicone sealant is prepared from a component A and a component B, wherein the component A is prepared from the following components in parts by mass: 50 to 80 parts of alpha,omega-hydroxy-terminated polydimethylsiloxane, 30 to 50 parts of flame-retarding slurry, 1 to 3 parts of fumed silica and 5 to 10 parts of a coupling agent; the component B is prepared from the following components in parts by mass: 10 to 15 parts of a plasticizer, 5 to 10 parts of a cross-linking agent, 1 to 3 parts of a thickening agent and 0.1 to 0.2 part of an organic catalyst. The double-component, flame-retarding and quick-curing silicone sealant for the hollow glass has excellent bonding strength, tensile strength and elongation at break.

Description

technical field [0001] The invention relates to the technical field of polymer sealing materials for buildings, in particular to a two-component flame-retardant and fast-curing silicone sealant for insulating glass. Background technique [0002] With the progress of society, the development of economy and the improvement of people's living standards, energy problems have become increasingly prominent, and energy conservation has become a global revolution, and building energy conservation is no exception. In recent years, people's requirements for improving living conditions have become higher and higher. In order to pursue lighting and living comfort, housing construction itself generally develops in the direction of large windows, but the larger the windows of the building, the worse the energy-saving effect. According to statistics in our country, the energy lost through windows accounts for about 50% of the energy consumed by buildings. Practices at home and abroad have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06C09J11/08
CPCC09J183/06C08K2003/2224C08K2003/2227C08K2003/387C08L2201/02C08L2205/02C08L2312/08C09J11/04C09J11/06C09J11/08C08L83/04C08K13/02C08K3/22C08K3/38C08K5/544C08K3/36
Inventor 张建忠李军明
Owner 西卡(江苏)工业材料有限公司