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Preparation method of one-component oxime transparent silicone adhesive

A single-component, silicone adhesive technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of unsatisfactory appearance, insufficient shear force, increased energy consumption, etc. Reduced pass rate, reduced construction time, and improved construction efficiency

Active Publication Date: 2013-05-01
RIFENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, since all the white oil is added in the first step, the resistance after adding the fumed silica to the base rubber is small, and the shear force generated is insufficient, so that the appearance of the product is not ideal, or the stirring time needs to be prolonged to achieve a qualified appearance. , which will increase energy consumption and cost
[0005] In addition, various patent documents have also reported more preparation methods for one-component ketoxime transparent silicone adhesives, but the tackifier and catalyst are added in the last step, and the tackifier and catalyst are placed in the gas phase two. There is no report on the preparation method added before silicon oxide

Method used

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  • Preparation method of one-component oxime transparent silicone adhesive
  • Preparation method of one-component oxime transparent silicone adhesive

Examples

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Effect test

Embodiment 1

[0048] A preparation method of a one-component ketoxime transparent silicone adhesive, comprising the following steps:

[0049] (1) Put 100 parts of 80000 centipoise α, ω-dihydroxy polydimethylsiloxane and 60 parts of white oil (accounting for 76.9% of the required amount of white oil) and 0.04 parts of color paste into the 1000L high-speed dispersion planet Mixer, stirring at a speed of 300 rpm for 10 minutes, while passing cooling water into the jacket of the planetary mixer, the temperature of the cooling water is 10°C, and vacuumize to -0.1MPa;

[0050] (2) Add 15 parts of cross-linking agent by blowing nitrogen to release the vacuum, stir at 300 rpm for 10 minutes, and keep the vacuum degree at -0.1MPa during the stirring process;

[0051] (3) Nitrogen was released to remove the vacuum, and 1.5 parts of γ-(2,3-glycidyloxy)propyltriethoxysilane and 0.15 parts of dibutyltin dilaurate were added, and stirred at a speed of 300 rpm for 10 minutes. Keep the vacuum at -0.1MPa; ...

Embodiment 2

[0055] A preparation method of a one-component ketoxime transparent silicone adhesive, comprising the following steps:

[0056] (1) Put 100 parts of 80000 centipoise α, ω-dihydroxy polydimethylsiloxane and 50.4 parts of white oil (accounting for 80% of the required amount of white oil) and 0.04 parts of color paste into the 1000L high-speed dispersion planet Mixer, stirring at a speed of 300 rpm for 10 minutes, while passing cooling water into the jacket of the planetary mixer, the temperature of the cooling water is 20°C, and vacuumize to -0.09MPa;

[0057] (2) Add 15 parts of cross-linking agent by blowing nitrogen to release the vacuum, stir at 300 rpm for 10 minutes, and keep the vacuum at -0.09MPa during the stirring process;

[0058] (3) Nitrogen was released to remove the vacuum, and 1.5 parts of γ-(2,3-glycidyloxy)propyltriethoxysilane and 0.15 parts of dibutyltin dilaurate were added, and stirred at a speed of 300 rpm for 10 minutes. Keep the vacuum at -0.09MPa;

[...

Embodiment 3

[0062] A preparation method of a one-component ketoxime transparent silicone adhesive, comprising the following steps:

[0063] (1) Put 100 parts of 80000 centipoise α, ω-dihydroxy polydimethylsiloxane and 48 parts of white oil (accounting for 70% of the required amount of white oil) and 0.04 parts of color paste into the 1000L high-speed dispersion planet Mixer, stirring at a speed of 300 rpm for 10 minutes, while passing cooling water into the jacket of the planetary mixer, the temperature of the cooling water is 30°C, and vacuumize to -0.08MPa;

[0064] (2) Add 15 parts of cross-linking agent by blowing nitrogen to release the vacuum, stir at 300 rpm for 10 minutes, and keep the vacuum at -0.08MPa during the stirring process;

[0065] (3) Add 1.5 parts of γ-(2,3-glycidyloxypropoxy)propyltriethoxysilane and 0.15 parts of dibutyltin dilaurate to release the vacuum by blowing nitrogen gas, and stir at 300 rpm for 10 minutes. Keep the vacuum at -0.08MPa;

[0066] (4) Add 21 p...

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Abstract

The invention discloses a preparation method of a one-component oxime transparent silicone adhesive. According to the preparation method, white oil is divided into two parts for feeding. One part of the white oil firstly reacts with alpha, omega-dihydroxy polydimethylsiloxane. Thus, viscosity of base rubber can be appropriately reduced; severe wearing of equipment can be avoided; the resistance of the product will not be greatly reduced after the addition of gas-phase silica; and the gas phase silica powder can be dispersed uniformly. The other part is added after the reaction so as to make the product appearance more uniform, smoother and more exquisite. In the meanwhile, the curing time of the product is obviously accelerated, thus substantially minimizing construction time and raising construction efficiency.

Description

technical field [0001] The invention belongs to the field of organosilicon polymer materials, in particular to a preparation method of one-component ketoxime transparent silicone glue. Background technique [0002] Due to its unique structure, organosilicon polymer materials have a series of excellent properties, and are widely used in construction, automobile, electronics and other industrial sectors and people's daily life, playing a role that other synthetic materials cannot replace. Organosilicon materials are widely used in construction. They are mainly sealants. They are characterized by excellent weather resistance. Under normal climate conditions, their performance changes little within 30 years. It is difficult for other materials to reach this level. After being extruded in a sealed package, it will become an elastic body in the air and play the role of bonding and sealing. It can simplify various complicated operating procedures, reduce the cost of buildings, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06
Inventor 邓叔元张松祥
Owner RIFENG TECH CO LTD
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