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Deketoxime type silicone sealant with high light transmittance and preparation method of ketoxime-removing type silicone sealant

A technology of silicone sealant and high light transmittance, which is applied in adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of poor light transmittance of off-ketoxime type silicone sealants, and achieve Solve the effect of poor light transmittance

Inactive Publication Date: 2021-05-11
SHENZHEN JINLIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a deketoxime type silicone sealant with high light transmittance and its preparation method to solve the problem of poor light transmittance of the deketoxime type silicone sealant

Method used

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  • Deketoxime type silicone sealant with high light transmittance and preparation method of ketoxime-removing type silicone sealant
  • Deketoxime type silicone sealant with high light transmittance and preparation method of ketoxime-removing type silicone sealant

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Embodiment 1

[0037] see figure 1 , the present invention provides a technical solution: a method for preparing a deketoxime type silicone sealant with high light transmittance, the preparation process is as follows:

[0038] Mix 100 parts of 250000cps α, ω-dihydroxypolydimethylsiloxane, 50 parts of MQ silicone resin of 10000cps, 10 parts of vinyl tributylketoxime silane, 10 parts of methyl tributylketoxime silane, 8 parts of acrylic Add 2.5 parts of (N-n-propyl)aminopropyltrimethoxysilane and 0.5 parts of dibutyltin diacetylacetonate to the planetary mixer or high-speed dispersing mixer to disperse evenly. Stir and disperse for 40 minutes to obtain a deketoxime type silicone sealant with high light transmittance.

Embodiment 2

[0040] see figure 1 , the present invention provides a technical solution: a method for preparing a deketoxime type silicone sealant with high light transmittance, the preparation process is as follows:

[0041] Mix 100 parts of 50000cps α, ω-dihydroxypolydimethylsiloxane, 100 parts of MQ silicone resin of 15000cps, 15 parts of vinyl tributylketoxime silane, 15 parts of methyl tributylketoxime silane, 10 parts of octyl Add 5 parts of (N-n-propyl)aminopropyltriethoxysilane and 1 dibutyltin dilaurate to a planetary mixer or a high-speed dispersing mixer to disperse evenly, and then add 5 parts of (N-n-propyl)aminopropyltriethoxysilane and 1 dibutyltin dilaurate. Stir and disperse for 40 minutes to obtain a deketoxime type silicone sealant with high light transmittance.

Embodiment 3

[0043] see figure 1 , the present invention provides a technical solution: a method for preparing a deketoxime type silicone sealant with high light transmittance, the preparation process is as follows:

[0044] Mix 100 parts of 250000cps α, ω-dihydroxypolydimethylsiloxane, 50 parts of MQ silicone resin of 10000cps, 10 parts of vinyl tributylketoxime silane, 10 parts of methyl tributylketoxime silane, 8 parts of acrylic Add 2.5 parts of (N-n-propyl)aminopropyltrimethoxysilane and 0.5 parts of dibutyltin diacetylacetonate to the planetary mixer or high-speed dispersing mixer to disperse evenly. Stir and disperse for 40 minutes to obtain a deketoxime type silicone sealant with high light transmittance.

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Abstract

The invention discloses a deketoxime type silicone sealant with high light transmittance, which is prepared from the following components in parts by mass: 100 parts of alpha, omega-dihydroxy polydimethylsiloxane (107 glue), 50 to 100 parts of MQ silicon resin, 15 to 30 parts of a cross-linking agent 1, 5 to 10 parts of a cross-linking agent 2, 1 to 5 parts of a coupling agent and 0.1 to 1 part of a catalyst; the invention also discloses a preparation method of the deketoxime type silicone sealant with high light transmittance. The preparation method has the beneficial effects that the problem that the intersolubility between the ketoxime type cross-linking agent and the alpha, omega-dihydroxy polydimethylsiloxane (107 glue) is poor can be solved, after accelerated aging by ultraviolet light, the light transmittance performance meets the GB / T 2410-2008 test result T being greater than or equal to 96%, and the problem of poor light transmittance of the deketoxime type silicone sealant can be well solved.

Description

technical field [0001] The invention belongs to the technical field of silicone sealant, in particular to a deketoxime type silicone sealant with high light transmittance and also to a preparation method of the silicone sealant. 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. Reacts with water in the air and cures to form elastic silicone rubber. [0003] Silicone sealant is a kind of polymer material with a wide range of uses. Common uses are building bonding and sealing, lamp bonding and sealing, household appliances bonding and sealing, furniture and home improvement bonding and sealing, rail transit bonding and sealing, etc., with a wide range of uses There are bound to be many requirements for the performance of the product. Among them, the deketoxime type silicone sealant has many advantages such a...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J11/06
CPCC09J183/04C09J11/06C08L2205/025C08K2201/014
Inventor 过蓉晖陈依丰
Owner SHENZHEN JINLIAN TECH
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