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Double vulcanization system building sealant and preparation method thereof

A technology of sealant and double vulcanization, which is applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of long construction period, construction thickness exceeding a certain thickness, difficult curing, etc., and achieves simple and easy preparation methods Good anti-yellowing performance, beneficial to industrial production

Active Publication Date: 2022-07-26
SHANDONG DONGYUE ORGANIC SILICON MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the dealcoholized sealants in the domestic market still have some shortcomings, such as the problem of deep curing, whether it is two-component or single-component, it needs the help of moisture, such as the moisture of the air, from the surface to the inside. Deep curing, resulting in incomplete deep curing, long construction period, and the construction thickness exceeds a certain thickness, it is difficult to cure inside, which will also affect the firmness of the bond with the substrate
[0004] In addition, the rubber is prone to yellowing. The alcohol-type transparent glue produced by alkoxy-capped 107, stabilizer, organotin chelate, fumed white carbon black, coupling agent, etc., due to the capping agent, chelating agent and Introducing coupling agents, etc. containing yellowed functional groups, resulting in yellowing of the colloid

Method used

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  • Double vulcanization system building sealant and preparation method thereof
  • Double vulcanization system building sealant and preparation method thereof
  • Double vulcanization system building sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of dealcoholization type building sealant silicone rubber of double vulcanization system, the raw material mass parts components are as follows:

[0037] A glue component:

[0038] (a) 520 parts of alkoxy-terminated vinyl-containing 107 glue

[0039] (b) 50 parts of dimethicone (viscosity <350cs)

[0040] (c) 60 parts of white oil

[0041] (d) 975 parts of calcium carbonate

[0042] (e) 3 parts of Castel catalyst;

[0043] B glue component:

[0044] (f1) 40 parts of alkoxysilanes containing silicon hydrogen

[0045] (g) 29 parts of titanium catalyst

[0046] (h) 3.2 parts of KH550.

[0047] A glue preparation steps are as follows:

[0048] According to the following proportions, (a) 520 parts of alkoxy-terminated vinyl-containing 107 glue, (b) 50 parts of dimethicone (viscosity <350cs), (c) 60 parts of white oil, (d) 975 parts of calcium carbonate powder Parts (e) 3 parts of Castel catalyst, mixed evenly in a planetary mixer, the vacuum degree is -0.05MP...

Embodiment 2

[0053] A kind of dealcoholization type building sealant silicone rubber of double vulcanization system, the raw material mass parts components are as follows:

[0054] A glue component:

[0055] (a) 520 parts of alkoxy-terminated vinyl-containing 107 glue

[0056] (b) 50 parts of dimethicone (viscosity <350cs)

[0057] (c) 60 parts of white oil

[0058] (d) 975 parts of calcium carbonate

[0059] (e) 3 parts of platinum catalyst;

[0060] B glue components:

[0061] (f2) A mixture of 30 parts of methyltrimethoxysilane and 10 parts of hydrogen-containing silicone oil

[0062] (g) 29 parts of titanium catalyst

[0063] (h) 3.2 parts of KH550.

[0064] A glue preparation steps are as follows:

[0065] According to the following proportions, (a) 520 parts of alkoxy-terminated vinyl-containing 107 glue, (b) 50 parts of dimethicone (viscosity <350cs), (c) 60 parts of white oil, (d) 975 parts of calcium carbonate powder Parts (e) 3 parts of platinum catalyst, 5000ppm are mix...

Embodiment 3

[0070] A kind of dealcoholization type building sealant silicone rubber of double vulcanization system, the raw material mass parts components are as follows:

[0071] A glue component:

[0072] (a) 500 parts of alkoxy-terminated vinyl-containing 107 glue

[0073] (b) 40 parts of dimethicone (viscosity <350cs)

[0074] (c) 50 parts of white oil

[0075] (d) 950 parts of calcium carbonate

[0076] (e) 2 parts of Castel catalyst;

[0077] B glue component:

[0078] (f1) 30 parts of alkoxysilanes containing silicon hydrogen

[0079] (g) 28 parts of titanium catalyst

[0080] (h) KH550 3.0 parts.

[0081] A glue preparation steps are as follows:

[0082] According to the following proportions, (a) 500 parts of alkoxy-terminated vinyl-containing 107 glue, (b) 40 parts of dimethicone (viscosity <350cs), (c) 50 parts of white oil, (d) 950 parts of calcium carbonate powder Parts (e) 2 parts of Custer catalyst, mixed evenly in a planetary mixer, the vacuum degree is -0.05MPa, ...

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Abstract

The invention relates to a double vulcanization system building sealant and a preparation method thereof, belonging to the technical field of building sealants. The double vulcanization system building sealant of the present invention comprises A component and B component, A component: (a) 500-540 parts of alkoxy-terminated vinyl-containing 107 glue, (b) dimethicone 40-60 parts, (c) 50-70 parts of white oil, (d) 950-1000 parts of calcium carbonate, (e) 2-4 parts of Castel catalyst; B component: (f) alkoxyl containing silicon hydrogen 25-55 parts of base silane crosslinking agent, (g) 28-30 parts of titanium catalyst (h) 3.0-3.4 parts of organosilicon coupling agent. The double vulcanization system building sealant of the present invention not only has fast curing speed, deep-level curing, strong cohesion, but also excellent anti-yellowing performance; the present invention also provides a simple and easy preparation method.

Description

technical field [0001] The invention relates to a double vulcanization system building sealant and a preparation method thereof, belonging to the technical field of building sealants. Background technique [0002] Dealcoholized silicone building sealant is divided into one-component dealcoholized building sealant and two-component dealcoholized building sealant, with low odor, no corrosion, environmental protection and good performance on glass, metal and most substrates adhesiveness. With the rapid development of electronic appliances, automobile transportation, civil construction and other industries and the higher and higher requirements for environmental protection, the demand for dealcoholized silicone rubber is increasing, and it has become an important research project for sealant enterprises. [0003] At present, the dealcoholized sealants in the domestic market still have some shortcomings, such as the problem of deep curing, whether it is two-component or single-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J183/07C09J183/04C09J11/04C09J11/06C09J11/08
CPCC09J183/06C09J11/04C09J11/06C09J11/08C08K2003/265C08K2201/011C08L2205/03C08L2205/02C08L83/04C08K13/02C08K3/26C08K5/5419C08K5/544
Inventor 伊港王安营宋超左佳岩宋标刘海龙
Owner SHANDONG DONGYUE ORGANIC SILICON MATERIAL
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