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Novel mould-proof silane modified polyether sealant and preparing method thereof

A technology of silane-modified polyether and anti-mildew silane is applied in the field of building sealant to achieve the effect of improving anti-mildew performance, good compatibility and good thixotropy

Inactive Publication Date: 2018-05-18
GUANGXI HUANA NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the problems existing in the existing polyether sealant, the present invention provides a novel mold-proof silane-modified polyether sealant and a preparation method thereof

Method used

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  • Novel mould-proof silane modified polyether sealant and preparing method thereof

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Effect test

Embodiment 1

[0036]A novel mildew-resistant silane-modified polyether sealant, comprising the following raw materials in parts by weight: 90 parts of silane-modified polyether resin, 200 parts of active nano calcium carbonate, diisodecyl phthalate DIDP plasticizer 40 parts, 4 parts of titanium dioxide, 1 part of IRganox 1010 heat stabilizer, 3 parts of vinyltrimethoxysilane (A171) water remover, disulfide-2,2-bis(N-methylbenzamide) anti-mold 0.5 parts of agent, 1 part of silane bis(γ-trimethoxysilylpropyl) amine coupling agent (A1170) and 0.5 parts of chelated tin (U-220H) catalyst. The silane-modified polyether resin is a mixed modified polyether 12000DS with dimethoxysilane and trimethoxysilane, and its molecular weight is 10000.

[0037] Its preparation method comprises the following steps:

[0038] S1: Weigh each raw material according to the above ratio, add silane-modified polyether resin, active nano-calcium carbonate, diisodecyl phthalate DIDP plasticizer, titanium dioxide and IRg...

Embodiment 2

[0041] A novel mildew-proof silane-modified polyether sealant, comprising the following raw materials in parts by weight: 100 parts of silane-modified polyether resin, 180 parts of active nano-calcium carbonate, diisononyl phthalate DINP plasticizer 50 parts, 3 parts of titanium dioxide, 2.0 parts of IRganox 1010 heat stabilizer, 4 parts of vinyltrimethoxysilane (A171) water remover, disulfide-2,2-bis(N-methylbenzamide) anti-mold 0.4 parts of agent, 3 parts of KH792 coupling agent and 1.5 parts of dibutyltin dilaurate catalyst. The silane-modified polyether resin is a mixed modified polyether 12000DS with dimethoxysilane and trimethoxysilane, and its molecular weight is 15000.

[0042] Its preparation method comprises the following steps:

[0043] S1: Weigh each raw material according to the above ratio, add silane-modified polyether resin, active nano-calcium carbonate, diisononyl phthalate DINP plasticizer, titanium dioxide and IRganox 1010 heat stabilizer into the high-spe...

Embodiment 3

[0046] A novel mildew-resistant silane-modified polyether sealant, comprising the following raw materials in parts by weight: 110 parts of silane-modified polyether resin, 180 parts of active nano calcium carbonate, diisodecyl phthalate DIDP plasticizer 20 parts, 30 parts of polyether polyol N220 plasticizer, 2 parts of titanium dioxide, 2.0 parts of IRganox 1010 heat stabilizer, 2 parts of vinyltrimethoxysilane (A171) water remover, disulfide-2,2-bis (N-methylbenzamide) antifungal agent 0.3 parts, silane bis(γ-trimethoxysilylpropyl) amine coupling agent (A1170) 2 parts and dibutyltin dilaurate catalyst 2 parts. The silane-modified polyether resin is trimethoxysilane-modified polyether 30000T with a molecular weight of 20000.

[0047] Its preparation method comprises the following steps:

[0048] S1: Weigh each raw material according to the above ratio, and mix silane-modified polyether resin, active nano-calcium carbonate, diisodecyl phthalate DIDP plasticizer, polyether pol...

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Abstract

The invention discloses a novel mould-proof silane modified polyether sealant and a preparing method thereof. The sealant is prepared from, by weight, 80-110 parts of silane modified polyether resin,180-200 parts of activated nanometer calcium carbonate, 40-60 parts of plasticizer, 2-5 parts of titanium dioxide, 0.4-2 parts of heat stabilizer, 2-4 parts of dewatering agent, 0.3-0.5 part of mould-proof agent, 1-3 parts of coupling agent and 0.5-2 parts of catalyst. The plasticizer is one of or the composition of more of di-iso-decylphthalate, diisononyl phthalate, di-isononyl-cyclohexane-1,2-dicarboxylate, polyether polyol N220 and polyether polyol N330. The mould-proof agent is dithio-2,2-bis(N-methylbenzamide). By means of the prepared silane modified polyether sealant, the mould-proof performance is improved, the service life is prolonged, surface drying and viscosity eliminating are rapid, and high elongation and high yellowing resistance are kept. The method is simple in preparation, feasible in process, low in production cost, low in energy consumption and beneficial for industrial production and has good economic benefits and social benefits.

Description

technical field [0001] The invention relates to the technical field of building sealants, in particular to a novel anti-mold silane-modified polyether sealant and a preparation method thereof. Background technique [0002] In home interior decoration, special humid environments such as kitchen, bathroom, toilet sanitary ware and countertops, and basement walls are prone to breed mold, causing the decorative coating to fade or even fall off, affecting the aesthetics of the building, and even causing safety issues. . Mold is also a great hazard to human health. Long-term contact and inhalation of mold can cause respiratory inflammation and allergic diseases, resulting in symptoms such as rhinitis, allergic reactions, and lung diseases. Therefore, the joint sealing of these humid environments requires the use of environmentally friendly sealant products with excellent waterproof and mildew resistance. At present, the commonly used kitchen and bathroom anti-mold sealants are m...

Claims

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Application Information

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IPC IPC(8): C09J171/00C09J11/04C09J11/06
CPCC08K5/3725C08K5/544C08K13/02C08K2003/265C08K2201/011C09J11/04C09J11/06C09J171/00
Inventor 陈霞朱勇黄本卫方贵坜覃玲意
Owner GUANGXI HUANA NEW MATERIALS TECH CO LTD
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