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High-performance sealant for building assembling and preparation method thereof

A sealant, high-performance technology, used in chemical instruments and methods, adhesives, transportation and packaging, etc., can solve the problems of mildew resistance and adhesion with concrete, not environmentally friendly, affecting colloid performance, etc., to reduce Colloidal tensile modulus, good aging resistance, and the effect of improving bonding performance

Inactive Publication Date: 2019-11-22
SUZHOU RES INST OF ARCHITECTURE SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product uses a plasticizer, which is not environmentally friendly and affects the performance of the colloid. The mildew resistance and the bonding force with concrete are not reflected in this invention

Method used

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  • High-performance sealant for building assembling and preparation method thereof
  • High-performance sealant for building assembling and preparation method thereof
  • High-performance sealant for building assembling and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A high-performance sealant for building assembly, comprising the following components:

[0039] Element Weight (kg) Silane modified polyether 30000T 30 Polyether polyol PPG 5616 8 Hydrogenated bisphenol A diglycidyl ether 2 Nano Light Calcium Carbonate 40 BYK-W 985 1 γ-Aminopropyltriethoxysilane 1.5 Fumed silica R202 1.5 anti aging agent 0.9 Antifungal agent SZ99P 0.2 coupling agent 0.3 Bis(acetylacetonate) dibutyltin 0.1

[0040] Among them, the anti-aging agent is composed of β-(4-hydroxyphenyl-3,5-di-tert-butyl) propanoic acid n-octadecyl alcohol: 2'-(2'-hydroxy-3'-tert-butyl-5' -Methylphenyl)-5-chlorobenzotriazole: bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate mixed at a weight ratio of 3:2:2 . The coupling agent is prepared by mixing N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane:bis(acetoacetate ethyl)di-n-butoxy titanate in a weight ratio of 1:1.

[0041] The preparation method o...

Embodiment 2

[0047] A high-performance sealant for building assembly, comprising the following components:

[0048]

[0049]

[0050] Among them, the anti-aging agent is composed of β-(4-hydroxyphenyl-3,5-di-tert-butyl) propanoic acid n-octadecyl alcohol: 2'-(2'-hydroxy-3'-tert-butyl-5' -Methylphenyl)-5-chlorobenzotriazole: bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate mixed at a weight ratio of 3:2:2 . The coupling agent is prepared by mixing N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane:bis(acetoacetate ethyl)di-n-butoxy titanate in a weight ratio of 1:1.

[0051] The preparation method of above-mentioned sealant is as follows:

[0052] First add silane-modified polyether 30000T, polyether polyol PPG 5616, hydrogenated bisphenol A diglycidyl ether, BYK-W985, and fumed silica R202 into the twin-shaft power mixer, stir and rotate at 10r / min, and disperse Rotate at 200r / min, stir for 15min; then add anti-aging agent, SZ99P antifungal agent, stir for 5min; then add nano-light cal...

Embodiment 3

[0058] A high-performance sealant for building assembly, comprising the following components:

[0059] Element Weight (kg) Silane modified polyether 30000T 50 Polyether polyol PPG 5616 11.2 Hydrogenated bisphenol A diglycidyl ether 2.8 Nano Heavy Calcium 35 BYK-W 985 1.2 Vinyltris(2-methoxyethoxy)silane 1 Fumed silica R202 3 anti aging agent 2.4 Antifungal agent SZ99P 1.5 coupling agent 0.8 Bis(acetylacetonate) dibutyltin 0.2

[0060] Among them, the anti-aging agent is composed of β-(4-hydroxyphenyl-3,5-di-tert-butyl) propanoic acid n-octadecyl alcohol: 2'-(2'-hydroxy-3'-tert-butyl-5' -Methylphenyl)-5-chlorobenzotriazole: bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate mixed at a weight ratio of 3:2:2 . The coupling agent is prepared by mixing N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane:bis(acetoacetate ethyl)di-n-butoxy titanate in a weight ratio of 1:1.

[0061] The preparation method of a...

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PUM

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Abstract

The invention relates to the technical field of building materials, and discloses a high-performance sealant for building assembling, which comprises the following components by weight: 30-50 parts ofsilane modified polyether, 10-15 parts of a viscosity reducer, 35-55 parts of a wetting dispersant, 1-2 parts of a filler, 1-2 parts of a water removal agent, 1.5-3 parts of a thixotropic agent, 0.9-2.4 parts of an anti-aging agent, 0.2-1.5 parts of a mildew inhibitor, 0.3-0.8 part of a coupling agent and 0.1-0.2 part of catalyst. The performance of the sealant meets the standard requirements oflow-modulus glue in JC / T 887-2017 Building Sealant for Concrete Joints, and primer coating is not used in a product testing process. Meanwhile, the mildew-proof performance meets the requirements of the mildew-proof grade in GB / T 1741-2007 Paint Film Mould Resistance Test Method. The sealant provided by the invention has the characteristics of low modulus, good elasticity, strong binding power, good aging resistance, good paintability, environmental protection and the like on a concrete base material, and can be widely applied to sealing and waterproofing of concrete and concrete joints.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-performance sealant for building assembly and a preparation method thereof. Background technique [0002] With the transformation and upgrading of the country's construction industry and changes in building construction methods, housing assembly and industrialization are the only way for the development of the construction industry. In 2016, the Ministry of Housing and Urban-Rural Development issued the requirements of the "Outline for the Modernization of the Construction Industry", and put forward a clear development goal for the development of prefabricated buildings: during 2016-2020, prefabricated buildings accounted for more than 30% of new buildings, and during 2021-2025 Accounting for more than 50% of new buildings. At present, the prefabricated concrete structure system that is being promoted and applied in China mainly includes the assembled integral ...

Claims

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Application Information

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IPC IPC(8): C09J171/00C09J11/04C09J11/06C09J11/08B01F7/00B01F13/06B01F15/00
CPCC09J171/00C09J11/04C09J11/06C09J11/08C08L2205/025C08K2003/265C08K2201/011C08K2003/2241C08L2201/08B01F27/232B01F33/70B01F35/322C08L71/00C08K13/02C08K3/22C08K3/04C08K3/26C08K3/34C08K3/36C08K5/1345C08K5/3475C08K5/3435C08K5/544C08K5/10
Inventor 朱华张晓华陈晓龙
Owner SUZHOU RES INST OF ARCHITECTURE SCI
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