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Silicone weather-proofing sealant

A sealant and weather-resistant technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of easy mildew and lack of anti-mildew function, and achieve good anti-mold performance and excellent weather aging resistance Performance, the effect of good adhesion

Inactive Publication Date: 2018-03-16
SICHUAN KELIXIN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, many silicone sealants do not have the anti-mildew function, and they are prone to mildew after a period of use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The silicone weather-resistant sealant in this example is composed of the following raw materials in parts by weight: 55 parts of vulcanized methyl silicone rubber with a viscosity of 20000Pa·S, 145 parts of vulcanized methyl silicone rubber with a viscosity of 80000Pa·S, and 50 parts of vulcanized methyl silicone rubber with a viscosity of 500Pa·S. 10 parts of 201 methyl silicone oil, 37.5 parts of methyl silicone oil with a viscosity of 200 Pa S, 200 parts of nano-active calcium carbonate, 75 parts of fumed silica, 25 parts of silicon dioxide, and 30 parts of methyl tributylketoxime silane , 7 parts of di-n-butyltin dilaurate, 1 part of aminopropyltriethoxysilane, 1.5 parts of propyltrimethoxysilane, 2 parts of antifungal agent, 15 parts of carbon black;

[0016] Prepared by the following steps:

[0017] (1) Add vulcanized methyl silicone rubber of various viscosities, methyl silicone oil with a viscosity of 500Pa·S, nano-active calcium carbonate, fumed silica, and si...

Embodiment 2

[0021] The silicone weather-resistant sealant in this embodiment includes the following raw materials in parts by weight: 50 parts of vulcanized methyl silicone rubber with a viscosity of 25000 Pa·S, 130 parts of vulcanized methyl silicone rubber with a viscosity of 90000 Pa·S, and methyl alcohol with a viscosity of 500 Pa·S. 8 parts of base silicone oil, 22 parts of methyl silicone oil with a viscosity of 300Pa·S, 180 parts of nano-active calcium carbonate, 70 parts of fumed white carbon black, 20 parts of silicon dioxide, 20 parts of methyl tributylketoxime silane, dilauryl 5 parts of di-n-butyltin acid, 1 part of aminopropyltriethoxysilane, 1 part of propyltrimethoxysilane, 2 parts of antifungal agent, 10 parts of carbon black.

[0022] Prepared by the following steps:

[0023] (1) Add vulcanized methyl silicone rubber of various viscosities, methyl silicone oil with a viscosity of 500Pa·S, nano-active calcium carbonate, fumed silica, and silicon dioxide into the vacuum kne...

Embodiment

[0027] The silicone weather-resistant sealant in this embodiment includes the following raw materials in parts by weight: 60 parts of vulcanized methyl silicone rubber with a viscosity of 15000 Pa·S, 160 parts of vulcanized methyl silicone rubber with a viscosity of 70000 Pa·S, and methyl silicone rubber with a viscosity of 400 Pa·S. 15 parts of base silicone oil, 45 parts of methyl silicone oil with a viscosity of 200 Pa·S, 210 parts of nano-active calcium carbonate, 90 parts of fumed silica, 30 parts of silicon dioxide, 40 parts of methyl tributyl ketoxime silane, dilauryl 10 parts of di-n-butyltin acid, 2 parts of aminopropyltriethoxysilane, 3 parts of propyltrimethoxysilane, 2 parts of antifungal agent, 20 parts of carbon black.

[0028] Prepared by the following steps:

[0029] (1) Add vulcanized methyl silicone rubber of various viscosities, methyl silicone oil with a viscosity of 400Pa·S, nano-active calcium carbonate, fumed silica, and silicon dioxide into the vacuum k...

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Abstract

The invention discloses a silicone weather-resistant sealant, which comprises the following raw materials in parts by weight: 50-60 parts of vulcanized methyl silicone rubber with a viscosity of 15000-25000 Pa·S, and 130 parts of vulcanized methyl silicone rubber with a viscosity of 70000-90000 Pa·S ~160 parts, 8~15 parts of methyl silicone oil with a viscosity of 400~500Pa·S, 22~45 parts of methyl silicone oil with a viscosity of 200~300Pa·S, 180~210 parts of nano-active calcium carbonate, 70 parts of fumed silica ~90 parts, silicon dioxide 20~30 parts, methyl tributylketoxime silane 20~40 parts, di-n-butyltin dilaurate 5~10 parts, aminopropyl triethoxysilane 1~2 parts, propane 1-3 parts of trimethoxysilane, 1-3 parts of anti-mold agent, and 10-20 parts of pigment; the silicone weather-resistant sealant has good anti-mold effect and good weather resistance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a silicone weather-resistant sealant. Background technique [0002] In recent years, the decoration requirements of residential buildings have become higher and higher, heating facilities have become more and more perfect, and the airtight performance of rooms has been continuously strengthened, and the phenomenon of water vapor accumulation in bathrooms and kitchens is also more common. Cause a large amount of growth of wall and corner mold thereby, have a strong impact on people's health and the improvement of living environment. Especially in the rainy season, water droplets may even condense on indoor glass and wall surfaces, which is more conducive to the reproduction of mold. [0003] At present, there are many types of sealing materials used in building interior decoration on the market, and the quality is uneven. The common one is single-component vulcanized si...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/08
CPCC09J183/04C08K2003/265C08K2201/011C08K2201/014C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C08L83/04C08K13/02C08K3/26C08K3/36C08K5/5465C08K5/544
Inventor 李鹏
Owner SICHUAN KELIXIN NEW MATERIALS CO LTD
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