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Silicone coating capable of resisting low temperature of -40DEG C, and preparation method thereof

A production method and silicone technology, applied in coatings, anti-corrosion coatings, etc., can solve problems such as difficult to meet the use requirements and deficiencies, and achieve the effects of non-toxic skin, strong hydrophobicity, and improved stability

Inactive Publication Date: 2014-08-20
JIANGSU XIN AN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of industries such as aviation, aerospace, automobiles and weapons, the requirements for the performance of metal materials are getting higher and higher. Dynamic, anti-fatigue, anti-temperature sudden change and anti-scouring properties, organic polymer materials have been difficult to meet the requirements of use
Ordinary coatings cannot react by themselves to form a dense protective layer at a certain temperature, and at the same time cannot react with metal materials to form a metal complex layer in a short period of time, resulting in excellent adhesion. Temperature use, and has excellent resistance to heat and humidity, salt spray and high and low temperature performance is somewhat insufficient

Method used

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  • Silicone coating capable of resisting low temperature of -40DEG C, and preparation method thereof
  • Silicone coating capable of resisting low temperature of -40DEG C, and preparation method thereof
  • Silicone coating capable of resisting low temperature of -40DEG C, and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0037] This embodiment provides a silicone coating resistant to low temperatures of -40°C, the composition of which is as follows in terms of mass percentage:

[0038] Grafted silicone resin 44%

[0039] 50μm aluminum powder 42%

[0040] Styrene 3%

[0041] Aluminum powder alignment agent LY-610 7.5%

[0042] KH570 silane coupling agent 3.5%

[0043] This embodiment also provides a method for preparing a silicone coating resistant to low temperatures of -40°C. The steps of the method are as follows:

[0044] Step (1): Put the grafted silicone resin and additives into the dispersion tank filled with solvent, start the agitator to stir slowly, the stirring speed is 300 rpm, after stirring for 20 minutes, wait until it is uniform;

[0045] Step (2): Add aluminum powder to the homogeneous mixture in step (1) by adding it in the state of stirring, adjust the rotation speed to 600 rpm, and stir for 50 minutes, and wait until it is uniform;

[0046] Step (3): Control the tempera...

Embodiment 2

[0050] This embodiment provides a silicone coating resistant to low temperatures of -40°C, the composition of which is as follows in terms of mass percentage:

[0051] Grafted silicone resin 40%

[0052] 50μm aluminum powder 45%

[0053] Styrene 5%

[0054] SP-1004 aluminum powder alignment agent 7%

[0055] KH580 silane coupling agent 3%

[0056] This embodiment also provides a method for preparing a silicone coating resistant to low temperatures of -40°C. The steps of the method are as follows:

[0057]Step (1): Put the grafted silicone resin and additives into the dispersion tank filled with solvent, start the agitator to stir slowly, the stirring speed is 300 rpm, after stirring for 30 minutes, wait until it is uniform;

[0058] Step (2): Add aluminum powder to the homogeneous mixture in step (1) by adding it in the state of stirring, adjust the rotation speed to 600 rpm, and stir for 30 minutes, and wait until it is uniform;

[0059] Step (3): Control the temperature...

Embodiment 3

[0063] This embodiment provides a silicone coating resistant to low temperatures of -40°C, the composition of which is as follows in terms of mass percentage:

[0064] Grafted silicone resin 50%

[0065] 50μm aluminum powder 40%

[0066] Trichlorostyrene 5%

[0067] SP-1004 aluminum powder alignment agent 3.5%

[0068] KH580 silane coupling agent 1.5%

[0069] The present invention also provides a method for preparing a silicone coating resistant to low temperatures of -40°C. The steps of the method are as follows:

[0070] Step (1): Put the grafted silicone resin and additives into the dispersion tank filled with solvent, start the agitator to stir slowly, the stirring speed is 300 rpm, after stirring for 50 minutes, wait until it is uniform;

[0071] Step (2): Add aluminum powder to the homogeneous mixture in step (1), the way is to add it under stirring, adjust the rotation speed to 600 rpm, stir for 20 minutes, and wait until it is uniform;

[0072] Step (3): Control ...

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Abstract

The invention discloses a silicone coating capable of resisting a low temperature of -40DEG C, and a preparation method thereof. The silicone coating comprises, by mass, 40-50% of grafted silicone resin, 40-45% of 50mum aluminum powder, 10-15% of a solvent and 5-8% of an assistant, wherein the grafted silicone resin is moisture-curable silicone resin, and the assistant comprises, by mass, 20-35% of a grafting coupling agent and 65-80% of an orientation agent. The silicone coating has the characteristics of stable chemical properties, no toxicity or irritation, low temperature resistance and strong corrosion resistance, enables cured products to have high freezing, flame and ablation resistances and excellent electric performances, and can be widely used in special apparatuses of liquid nitrogen storage pots, liquid oxygen storage pots and the like.

Description

technical field [0001] The invention belongs to the technical field of coatings, and relates to a silicone coating material, in particular to a -40°C low-temperature resistant silicone coating and a preparation method thereof. Background technique [0002] With the rapid development of industries such as aviation, aerospace, automobiles and weapons, the requirements for the performance of metal materials are getting higher and higher. It is difficult for organic polymer materials to meet the requirements of use because of their performances such as dynamic resistance, fatigue resistance, temperature sudden change resistance and erosion resistance. Ordinary coatings cannot react by themselves to form a dense protective layer at a certain temperature, and at the same time cannot react with metal materials to form a metal complex layer in a short period of time, resulting in excellent adhesion. Temperature use, and has excellent resistance to heat and humidity, salt spray and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D5/10C09D5/00C09D7/12
Inventor 杨松林吴福娣陈晓兵
Owner JIANGSU XIN AN NEW MATERIALS TECH
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