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A two-component silane-modified polyether sealant for insulating glass and its preparation method

A silane-modified polyether, two-component technology, applied in the field of sealants, can solve the problems of poor storage stability, large amount of organic tin catalysts, low water vapor transmission rate, etc., and achieve high resistance to deformation and displacement, environmental protection Excellent friendliness and low water vapor transmission rate

Active Publication Date: 2022-03-25
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, polysulfide sealant has good adhesion, low water vapor transmission rate, excellent structural strength and aging resistance, but its foul smell makes it difficult to be accepted by people.
Silicone products have good adhesion and structural strength, and good aging resistance. They are currently the mainstream products of insulating glass sealants in China. However, over time, silicone oil will migrate to the surface of the colloid, contaminating the substrate.
That is to say, generally speaking, there are still few types of insulating glass sealants on the market, which cannot meet the diverse needs.
[0004] It is worth pointing out that conventional polyurethane sealants have the characteristics of high strength, tear resistance, soft wear resistance, puncture resistance, oil resistance, medium corrosion resistance, etc., but they have many pores, poor heat and humidity resistance and aging resistance, and poor storage stability. And other shortcomings, can not be used for the sealing of insulating glass
[0005] In addition, the conventional silane-modified polyether sealants have not been used in the field of insulating glass sealing. The main reasons are as follows: (1) In order to improve the curing performance of the existing two-component MS products, one of the components needs Adding a specific amount of water directly into the solution can achieve deep curing, which is not conducive to the long-term storage of the product; (2) the existing two-component products are mainly used in prefabricated buildings, and the strength and aging performance of the product cannot meet the national standard GB of insulating glass sealant / T 29755 requirements; (3) The amount of organic tin catalyst added in the existing two-component product is too much, accounting for more than 1% of the total product, too much organic tin catalyst not only increases the cost of the finished product, but also affects Unfavorable environment

Method used

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  • A two-component silane-modified polyether sealant for insulating glass and its preparation method
  • A two-component silane-modified polyether sealant for insulating glass and its preparation method
  • A two-component silane-modified polyether sealant for insulating glass and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0036] This embodiment provides a two-component silane-modified polyether sealant for insulating glass, including component A and component B, wherein component A includes the following raw materials by weight, wherein component A includes the following components by weight Raw materials: 100 parts MS polymer S303H, 55 parts plasticizer diisoamyl phthalate DINP, 150 parts active nano calcium carbonate, 60 parts heavy calcium carbonate, 28 parts activated 4A molecular sieve original powder, 1 part of UV absorber Tinuvin326, 1 part light stabilizer Tinuvin770.

[0037] Component B includes the following raw materials by weight: 100 parts of fumed silica, 200 parts of diisoamyl phthalate DINP, 100 parts of γ-aminopropyltrimethoxysilane, 100 parts of γ-(2,3- Glycidoxy)propyltrimethoxysilane, 8 parts of alkylorganotin chelated tin.

[0038] The preparation method of the two-component silane-modified polyether sealant of the present embodiment includes the following steps:

[0039...

Embodiment 2

[0043]This embodiment provides a two-component silane-modified polyether sealant for insulating glass, including component A and component B, wherein component A includes the following raw materials by weight, wherein component A includes the following components by weight Raw materials: 100 parts MS polymer S810, 80 parts polyether polyol with molecular weight of 2500, 200 parts active nano calcium carbonate, 100 parts heavy calcium carbonate, 48 parts activated 3A molecular sieve original powder, 0.6 part UV absorber Tinuvin326 , 0.6 parts of light stabilizer Tinuvin770.

[0044] Component B includes the following raw materials by weight: 100 parts of carbon black, 280 parts of polyether polyol with a molecular weight of 2500, 50 parts of γ-aminopropyltrimethoxysilane, 50 parts of γ-(2,3-epoxypropylene) oxy)propyltrimethoxysilane, 8 parts of alkylorganotin chelated tin.

[0045] The preparation method of the two-component silane-modified polyether sealant of the present emb...

Embodiment 3

[0050] This embodiment provides a two-component silane-modified polyether sealant for insulating glass, including component A and component B, wherein component A includes the following raw materials by weight, wherein component A includes the following components by weight Raw materials: 100 parts MS polymer SAT350, 100 parts dioctyl phthalate DOP, 100 parts active nano calcium carbonate, 100 parts heavy calcium carbonate, 10 parts activated 5A molecular sieve original powder, 1 part UV absorber Tinuvin326 , 1 part of the light stabilizer Tinuvin770.

[0051] Component B includes the following raw materials by weight: 100 parts of carbon black, 200 parts of dioctyl phthalate DOP, 100 parts of γ-aminopropyltrimethoxysilane, 100 parts of γ-(2,3-epoxypropylene) Oxy)propyltrimethoxysilane, 5 parts dibutyltin dilaurate.

[0052] The preparation method of the two-component silane-modified polyether sealant of the present embodiment includes the following steps:

[0053] Preparati...

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Abstract

The invention discloses a two-component silane-modified polyether sealant for insulating glass, relates to the technical field of sealant, and comprises: A component: 100 parts of MS polymer, 50-150 parts of plasticizer 150-350 parts of the first reinforcing filler, 10-50 parts of the second reinforcing filler, 0.5-1.0 parts of light stabilizer, 0.5-1.0 parts of ultraviolet absorber; component B: 100 parts of the third reinforcing filler, 200-300 parts of plasticizer, 100-200 parts of silane coupling agent, 5-10 parts of catalyst. The two-component silane-modified polyether sealant for insulating glass has fast solidification speed in the deep layer as a whole, good storage stability and good aging resistance, and can meet the performance requirements of insulating glass bonding and sealing. The invention also discloses a preparation method of a two-component silane-modified polyether sealant for insulating glass.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a two-component silane-modified polyether sealant for insulating glass and a preparation method. Background technique [0002] With the country's increasing emphasis on energy-saving materials and people's increasing environmental awareness, the application of insulating glass in the building materials market has become more and more extensive, and the requirements for its quality have become higher and higher. Since the heat insulation, sound insulation and anti-frost and fog performance of insulating glass are realized by a sealed and dry air layer inside, insulating glass sealant is the main factor determining the quality and performance of insulating glass. [0003] At present, the insulating glass sealants on the market mainly include polysulfide sealants and silicone sealants. Among them, polysulfide sealants have good adhesion, low water vapor transmission rate, and exce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J171/02C09J11/04C09J11/06C09J11/08
Inventor 王翠花蔡海涛刘鹏章锋
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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