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Anti-aging silane modified polyether sealant for buildings and preparation method thereof

A silane-modified polyether, anti-aging technology, applied in the direction of polyether adhesives, adhesives, adhesive types, etc., can solve the problems of poor aging resistance and long-term service life, and improve cohesion and strength , Durability improvement, damage reduction effect

Pending Publication Date: 2021-12-28
GUANGXI HUANA NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an anti-aging silane-modified polyether sealant for construction, which solves the problems in the prior art that the silane-modified polyether sealant has poor aging resistance and cannot maintain long-term service life in joints

Method used

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  • Anti-aging silane modified polyether sealant for buildings and preparation method thereof
  • Anti-aging silane modified polyether sealant for buildings and preparation method thereof
  • Anti-aging silane modified polyether sealant for buildings and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] An aging-resistant silane-modified polyether sealant for construction, prepared from the following raw materials in parts by weight: 80 parts of silane-modified polyether resin, 1 part of SBS modifier, 20 parts of polypropylene glycol PPG3000, and 30 parts of nano-calcium carbonate 30 parts of heavy calcium powder, 6 parts of TCA-BEAT titanate coupling agent, 0.1 part of SZ99P antifungal agent, 0.1 part of dibutyltin dilaurate, 0.5 parts of fumed silica, 1 part of organic bentonite, vinyl 0.6 parts of trimethoxysilane, 10100.3 parts of antioxidant, 0.5 parts of light stabilizer UV7700, CeO 2 10 parts, 3 parts of rutile titanium dioxide, 2 parts of carbon black.

[0030] A preparation method of anti-aging silane modified polyether sealant for building, comprising the following steps:

[0031] A. After surface-treating the nano-calcium carbonate with stearic acid, mix it with heavy calcium and heat it to 80° C. to pre-remove water for 20 hours to obtain the filler and se...

Embodiment 2

[0035] An aging-resistant silane-modified polyether sealant for buildings, prepared from the following raw materials in parts by weight: 90 parts of silane-modified polyether resin, 5 parts of SBS modifier, 15 parts of phthalate, 35 parts of nano calcium carbonate, 35 parts of heavy calcium powder, 5 parts of TCA-BEAT titanate coupling agent, 0.3 part of SZ99P antifungal agent, 0.2 part of stannous octoate, 0.2 part of tin butyrate, 0.5 part of fumed silica , 1 part of organic bentonite, 0.4 parts of vinyl triethoxysilane, 0.4 parts of vinyl tris(2-methoxyethoxy) silane, 10100.3 parts of antioxidant, 0.5 parts of light stabilizer UV7700, Pr 6 o 11 10 parts, 0.1 part of rutile titanium dioxide, 5 parts of carbon black.

[0036]A preparation method of anti-aging silane modified polyether sealant for building, comprising the following steps:

[0037] A. After surface-treating the nano-calcium carbonate with stearic acid, mix it with heavy calcium and heat it to 82°C to pre-remo...

Embodiment 3

[0041] An aging-resistant silane-modified polyether sealant for buildings, prepared from the following raw materials in parts by weight: 110 parts of silane-modified polyether resin, 8 parts of SBS modifier, 10 parts of polypropylene glycol PPG3000, and 50 parts of nano-calcium carbonate 50 parts of heavy calcium powder, 1 part of TCA-BEAT titanate coupling agent, 1 part of KH792 silane coupling agent, 0.8 part of SZ99P antifungal agent, 0.3 part of chelated tin, 0.3 part of dibutyltin dilaurate , 0.3 parts of trialkylamine, 0.5 parts of fumed silica, 1 part of organic bentonite, 0.2 parts of vinyl tris (2-methoxyethoxy) silane, 10100.3 parts of antioxidant, 0.5 parts of light stabilizer UV7700 , CeO 2 2 parts, 2 parts of rutile titanium dioxide, 20 parts of carbon black.

[0042] A preparation method of anti-aging silane modified polyether sealant for building, comprising the following steps:

[0043] A. After surface-treating the nano-calcium carbonate with stearic acid, m...

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Abstract

The invention discloses an anti-aging silane modified polyether sealant for buildings. The silane modified polyether sealant is prepared from the following raw materials in parts by weight: 80-120 parts of silane modified polyether resin, 1-10 parts of an SBS modifier, 8-25 parts of a plasticizer, 30-60 parts of nano calcium carbonate, 30-60 parts of heavy calcium carbonate powder, 2-6 parts of a coupling agent, 0.1-1 part of a mildew preventive, 0.1-1 part of a catalyst, 0.5-2 parts of a rheological agent, 0.1-1 part of a water removal agent, 0.1-3 parts of an anti-aging agent, 1-10 parts of rare earth oxide superfine powder, 0.1-3 parts of rutile titanium dioxide and 2-20 parts of carbon black. The invention also discloses a preparation method of the silane modified polyether sealant. The silane modified polyether sealant disclosed by the invention has relatively high aging resistance, so that the silane modified polyether sealant can be kept for a long service life in joints, and the safety of PC buildings is improved.

Description

technical field [0001] The invention belongs to the technical field of construction sealant preparation, and in particular relates to an aging-resistant silane-modified polyether sealant for construction and a preparation method thereof. Background technique [0002] In recent years, sealants have begun to be used for joint sealing of building structures and have gradually become the main material. The material can be divided into different types of sealants according to the base polymer, such as silicone sealant, silane-based polyether sealant, polysulfide sealant, acrylate sealant, polyurethane sealant, etc. Silane-modified polyether sealant is a new generation of building sealant developed after silicone glue and polyurethane glue. It is widely used in bonding, joint filling, sealing, anti-reinforcement and other fields Compared with the other two commonly used sealants, silane-modified polyether sealant has excellent performance in adhesion, weather resistance, environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/00C09J153/02C09J11/04C09J11/06C09J11/08
CPCC09J171/00C09J11/04C09J11/06C09J11/08C08L2201/08C08L53/02C08K7/26C08K9/00C08K3/346C08K5/1345C08K5/3435
Inventor 卢新莲朱勇梁力戈方贵坜梁霞静
Owner GUANGXI HUANA NEW MATERIALS TECH CO LTD
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