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Weather-resistant conductive silicone sealant and preparation method thereof

A silicone sealant, weather resistance technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the general weather resistance of silicone sealants, can not meet special needs, does not have electrical conductivity, etc. problems, to achieve the effect of improving thermal stability and chemical stability, good electrical conductivity, and long service life

Inactive Publication Date: 2016-12-07
覃树强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing silicone sealants have average weather resistance, and it is difficult to apply them in the case of high requirements, and they do not have electrical conductivity, so they cannot meet special needs

Method used

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  • Weather-resistant conductive silicone sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1, a weather-resistant and conductive silicone sealant, made of the following raw materials in parts by weight (kg): α, ω-dihydroxypolydimethylsiloxane 98, titanium oxide 4, 200 low-molecular polysiloxane Amide 6, methyl tributylketoxime silane 7, rosin modified maleic acid resin 8, isobutyltriethoxysilane 2, acetylene carbon black 3, dimethyl silicone oil 6, nano-bentonite 5, aluminum phosphite 3. Dimethicone 2. Di-n-butyltin dilaurate 4. Nano zinc powder 2. Antimony tin oxide 3. Conductive mica powder 4.

[0016] A preparation method of a weather-resistant and conductive silicone sealant, comprising the following steps:

[0017] (1) Weigh each raw material by weight;

[0018] (2) 100 parts of α, ω-dihydroxy polydimethylsiloxane, titanium oxide, 200 low molecular weight polyamide, rosin modified maleic acid resin, acetylene carbon black, dimethyl silicone oil, nano-bentonite, Add aluminum phosphite, dimethyl ketone, antimony tin oxide, and conductive mica pow...

Embodiment 2

[0022] Example 2, a weather-resistant and conductive silicone sealant, made of the following raw materials in parts by weight (kg): α, ω-dihydroxypolydimethylsiloxane 100, titanium oxide 5, 200 low-molecular polysiloxane Amide 7, methyl tributylketoxime silane 8, rosin modified maleic acid resin 9, isobutyltriethoxysilane 3, acetylene carbon black 4, dimethyl silicone oil 7, nano-bentonite 6, aluminum phosphite 4. Dimethicone 3. Di-n-butyltin dilaurate 5. Nano zinc powder 2. Antimony tin oxide 4. Conductive mica powder 5.

[0023] A preparation method of a weather-resistant and conductive silicone sealant, comprising the following steps:

[0024] (1) Weigh each raw material by weight;

[0025] (2) α, ω-dihydroxy polydimethylsiloxane, titanium oxide, 200 low molecular weight polyamide, rosin modified maleic acid resin, acetylene carbon black, dimethyl silicone oil, nano-bentonite, phosphorous acid Add aluminum, dimethyl ketone, tin antimony oxide, and conductive mica powder i...

Embodiment 3

[0029] Example 3, a weather-resistant and conductive silicone sealant, made of the following raw materials in parts by weight (kg): α, ω-dihydroxypolydimethylsiloxane 102, titanium oxide 6, 200 low-molecular polysiloxane Amide 8, methyl tributylketoxime silane 9, rosin modified maleic acid resin 10, isobutyltriethoxysilane 4, acetylene carbon black 5, dimethyl silicone oil 8, nano-bentonite 7, aluminum phosphite 5. Dimethicone 4. Di-n-butyltin dilaurate 6. Nano zinc powder 3. Antimony tin oxide 5. Conductive mica powder 6.

[0030] A preparation method of a weather-resistant and conductive silicone sealant, comprising the following steps:

[0031] (1) Weigh each raw material by weight;

[0032] (2) α, ω-dihydroxy polydimethylsiloxane, titanium oxide, 200 low molecular weight polyamide, rosin modified maleic acid resin, acetylene carbon black, dimethyl silicone oil, nano-bentonite, phosphorous acid Add aluminum, dimethyl ketone, tin antimony oxide, and conductive mica powder ...

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Abstract

The invention discloses a weather-resistant conductive silicone sealant and a preparation method thereof. The weather-resistant conductive silicone sealant is mainly prepared from alpha,ometa- dihydroxyl polydimethylsiloxane, titanium black, low molecular polyamide 200, methyl-tri-(butanone-oxime) silane, rosin-modified maleic resin, isobutyltriethoxysilane, acetylene black, dimethyl silicone oil, nanometer bentonite, aluminophosphite, dimethyl ketone, di-n-butyltin dilaurate, nano-zinc powder, tin antimony oxide and the like. According to the silicone sealant, the nano-zinc powder, tin antimony oxide, conductive mica powder and acetylene black are compounded to serve as a conductor, the conductor is good in conductive effect and beneficial for improving the thermal stability and the chemical stability of the silicone sealant by being applied to cooperate with aluminophosphite and titanium black, and the weather resistance and the aging resistance of the silicone sealant are enhanced through the rosin-modified maleic resin, low molecular polyamide 200, isobutyltriethoxysilane and the like. The produced silicone sealant is good in conductivity, excellent in weather resistance and long in service life.

Description

technical field [0001] The invention relates to the technical field of sealing materials, in particular to a weather-resistant and conductive silicone sealant and a preparation method thereof. Background technique [0002] Silicone sealant is a paste made of polydimethylsiloxane as the main raw material, supplemented with crosslinking agent, filler, plasticizer, coupling agent, and catalyst in a vacuum state. Exposure to water in the air should cure to form an elastic silicone rubber. One-component silicone glass glue is an ointment-like material that cures to a tough, rubber-like solid upon exposure to moisture in the air. Silicone glass glue has strong adhesive force, high tensile strength, and at the same time has the characteristics of weather resistance, vibration resistance, moisture resistance, odor resistance and adaptability to large changes in cold and heat. Coupled with its wider applicability, it can realize the bonding between most building materials, so its a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/08C09J11/06C09J11/04
CPCC09J183/06C08K2201/011C08L2205/035C09J11/04C09J11/06C09J11/08C08L83/04C08L77/00C08L67/00C08K13/02C08K2003/0893C08K3/2279C08K3/34C08K3/04C08K3/32C08K5/5419
Inventor 覃树强
Owner 覃树强
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