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High-strength two-component polyurethane hollow glass sealing glue and preparation method thereof

A two-component polyurethane and glass sealant technology, applied in polyurea/polyurethane adhesives, non-polymer adhesive additives, adhesives, etc., can solve problems such as poor alkali and water resistance, and achieve strong UV resistance , good adhesion, strong anti-gas leakage effect

Inactive Publication Date: 2019-01-22
芮城华纳纳米材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of sealant has high tensile strength, excellent elasticity, abrasion resistance, oil resistance and cold resistance, but poor water resistance, especially alkali water resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-strength two-component polyurethane insulating glass sealant, made by mixing component A and component B, the weight ratio of component A to component B is 12:1, wherein the component A is composed of The following raw materials are composed of the following parts by weight: 150 parts of end-capped polyethers, 250 parts of plasticizers, 400 parts of fillers, and 2 parts of coupling agents; the B component is composed of the following raw materials by weight: 150 parts of polyether polyols, 80 parts of pigment, 40 parts of curing agent, 2 parts of catalyst.

[0022] Specifically, the viscosity of the blocked polyether raw gum is 20000 Pa·S.

[0023] Specifically, the plasticizer is dibutyl phthalate with a viscosity of 100 Pa·S.

[0024] Specifically, the filler is nano-active calcium carbonate and activated calcium carbonate, and the nano-active calcium carbonate is 250 parts, the active calcium carbonate is 150 parts, and the nano-active calcium carbonate has a...

Embodiment 2

[0034] A high-strength two-component polyurethane insulating glass sealant, made by mixing component A and component B, the weight ratio of component A to component B is 11:1, wherein the component A is composed of The following raw materials are composed of parts by weight: 200 parts of end-capped polyethers, 260 parts of plasticizers, 450 parts of fillers, and 3 parts of coupling agents; the B component is composed of raw materials of the following parts by weight: 160 parts of polyether polyols, 100 parts of pigment, 60 parts of curing agent, 3 parts of catalyst.

[0035] Specifically, the viscosity of the blocked polyether raw gum is 25000 Pa·S.

[0036] Specifically, the plasticizer is dibutyl phthalate with a viscosity of 200 Pa·S.

[0037] Specifically, the filler is nano-active calcium carbonate and activated calcium carbonate, and the nano-active calcium carbonate is 250 parts, the active calcium carbonate is 200 parts, and the particle size of the nano-active calciu...

Embodiment 3

[0047] A high-strength two-component polyurethane insulating glass sealant, made by mixing component A and component B, the weight ratio of component A to component B is 13:1, wherein the component A is composed of The following raw materials are composed of parts by weight: 220 parts of end-capped polyethers, 280 parts of plasticizers, 500 parts of fillers, and 4 parts of coupling agents; the B component is composed of raw materials of the following parts by weight: 180 parts of polyether polyols, 120 parts of pigment, 80 parts of curing agent, 4 parts of catalyst.

[0048] Specifically, the viscosity of the blocked polyether raw gum is 35000 Pa·S.

[0049] Specifically, the plasticizer is dibutyl phthalate with a viscosity of 400 Pa·S.

[0050] Specifically, the filler is nano-active calcium carbonate and activated calcium carbonate, and the nano-active calcium carbonate is 300 parts, the active calcium carbonate is 200 parts, and the nano-active calcium carbonate has a par...

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Abstract

The invention discloses a high-strength two-component polyurethane hollow glass sealing glue, which is prepared by mixing a component A and a component B according to a weight ratio of (10-15):1, wherein the component A comprises the following raw materials by weight: 150-250 parts of end-capped polyether, 250-300 parts of a plasticizer, 400-550 parts of a filler, and 2-5 parts of a coupling agent, and the component B comprises the following raw materials by weight: 150-200 parts of polyether polyol, 80-160 parts of a pigment, 40-100 parts of a curing agent, and 2-5 parts of a catalyst. According to the present invention, the sealing glue has advantages of strong gas-leakage resistance, good resistance to water vapor permeation, strong ultraviolet resistance, high strength, high elastic property, good adhesion and easy operation.

Description

technical field [0001] The invention relates to the technical field of polyurethane hollow glass sealant, in particular to a high-strength two-component polyurethane hollow glass sealant and a preparation method thereof. Background technique [0002] Polyurethane sealant (polyurethane sealant) is a sealant mainly composed of polyurethane rubber and polyurethane prepolymer. This type of sealant has high tensile strength, excellent elasticity, abrasion resistance, oil resistance and cold resistance, but poor water resistance, especially alkali water resistance. It can be divided into three types: heating vulcanization type, room temperature vulcanization type and hot melt type. Among them, the room temperature vulcanization type is divided into one-component and two-component. It is widely used in buildings, squares, and roads as caulking and sealing materials, as well as sealing in automobile manufacturing, glass installation, electronic filling, submarines and rockets, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J11/04C09J11/06
CPCC08K2003/265C08K2201/011C08K2201/014C09J11/04C09J11/06C09J175/08C08K13/02C08K5/12C08K3/26
Inventor 王东凯李青合
Owner 芮城华纳纳米材料有限公司
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