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Composite organic silicon coating as well as preparation method and application thereof

A technology of organosilicon coating and hydroxy silicone oil, applied in anti-corrosion coatings, coatings, etc., can solve the problem that the corrosion resistance needs to be improved

Inactive Publication Date: 2021-11-23
广东雷能电力集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the application provides a composite organosilicon coating and its preparation method and application, which can solve the technical problem that the corrosion resistance of the organic silicon coating needs to be improved in the prior art

Method used

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  • Composite organic silicon coating as well as preparation method and application thereof
  • Composite organic silicon coating as well as preparation method and application thereof

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Experimental program
Comparison scheme
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Embodiment 1

[0052] The present embodiment 1 provides the preparation method of the first kind of composite organosilicon coating, comprises the steps:

[0053] Step 1: dehydrating each raw material to a water content below 0.3wt%;

[0054] Step 2: Put 30g of hydroxyl silicone oil, 6g of dimethyl silicone oil, 1g of nano-calcium carbonate, 2.5g of terminal hydrogen-containing silicone oil, 10g of flame retardant powder, 3g of hydrophobic white carbon black, 0.03g of catalyst, and 100g of No. 120 solvent oil into the planetary bucket. Stir and disperse evenly;

[0055] Step 3: Add 2g of crosslinking agent and 1g of silane coupling agent, vacuumize, and raise the temperature to 50-60°C; continue stirring for 1.5h to complete the reaction.

[0056] Wherein, the hydroxy silicone oil is composed of 1000cps, a low viscosity hydroxy silicone oil with a hydroxyl content of 0.2% and a 20000cps dihydroxy-terminated hydroxy silicone oil, and the weight ratio of the low-viscosity hydroxy silicone oil...

Embodiment 2

[0058] The present embodiment 2 provides the preparation method of the second kind of composite organosilicon coating, comprises the steps:

[0059] Step 1: dehydrating each raw material to a water content below 0.3wt%;

[0060] Step 2: Put 20g of hydroxyl silicone oil, 8g of dimethyl silicone oil, 2g of nano-calcium carbonate, 2g of terminal hydrogen-containing silicone oil, 15g of flame retardant powder, 1g of hydrophobic white carbon black, 0.03g of catalyst, 100g of No. 120 solvent oil into the planetary barrel, and stir Evenly dispersed;

[0061] Step 3: Add 1g of crosslinking agent and 1g of silane coupling agent, vacuumize, and raise the temperature to 50-60°C; continue stirring for 1.5h to complete the reaction.

[0062] Wherein, the hydroxy silicone oil is composed of 1500cps, low viscosity hydroxy silicone oil with a hydroxyl content of 0.15% and 20000cps of dihydroxy-terminated hydroxy silicone oil, and the weight ratio of the low-viscosity hydroxy silicone oil and...

Embodiment 3

[0064] Present embodiment 3 provides the preparation method of the 3rd kind of composite organosilicon coating, comprises the steps:

[0065] Step 1: dehydrating each raw material to a water content below 0.3wt%;

[0066] Step 2: Put 40g of hydroxyl silicone oil, 5g of dimethyl silicone oil, 0.5g of nano-calcium carbonate, 3g of terminal hydrogen-containing silicone oil, 5g of flame retardant powder, 5g of hydrophobic white carbon black, 0.05g of catalyst, and 100g of No. 120 solvent oil into the planetary bucket. Stir and disperse evenly;

[0067] Step 3: Add 3g of crosslinking agent and 2g of silane coupling agent, vacuumize, and raise the temperature to 50-60°C; continue stirring for 2h to complete the reaction.

[0068] Wherein, the hydroxy silicone oil is composed of 1500cps, a low viscosity hydroxy silicone oil with a hydroxyl content of 0.15% and a 30000cps dihydroxy-terminated hydroxy silicone oil, and the weight ratio of the low-viscosity hydroxy silicone oil and the...

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Abstract

The invention belongs to the technical field of coatings, and particularly relates to a composite organic silicon coating as well as a preparation method and application thereof. According to the composite organic silicon coating as well as the preparation method and application thereof in the invention, the composite organic silicon coating comprises hydroxyl silicone oil, dimethyl silicone oil, inorganic filler, flame-retardant powder, a cross-linking agent and a catalyst, wherein the hydroxyl silicone oil comprises first hydroxyl silicone oil and second hydroxyl silicone oil, the viscosity of the first hydroxyl silicone oil is 1000-1500 cps, the viscosity of the second hydroxyl silicone oil is 20000-30000 cps, and the first hydroxyl silicone oil with low viscosity can improve the compatibility of the second hydroxyl silicone oil with high viscosity and the inorganic filler, so the coating is more compact and not easy to crack. Therefore, the technical problem that the corrosion resistance of organic silicon coatings in the prior art needs to be improved is solved.

Description

technical field [0001] The application belongs to the technical field of coatings, and in particular relates to a composite organosilicon coating and its preparation method and application. Background technique [0002] In order to improve the performance of silicone coatings, people often add some additional components to silicone coatings, such as the preparation method of an anti-corrosion and wear-resistant silicone coating disclosed in CN201911135161.0, in which the silicone coating is added Modified graphene will form a hard protective layer, thereby improving the wear resistance of the coating and the corrosion resistance of the coating. [0003] However, adding additional components to the silicone coating increases the raw material cost of the silicone coating on the one hand, and also complicates the preparation process on the other hand, which leads to an increase in the preparation cost of the silicone coating. Improving the performance of silicone coatings with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D5/08C09D7/61
CPCC09D183/04C09D5/08C09D7/61C09D7/70C08L2205/035C08L2205/025C08K2003/265C08K2201/011C08L83/04C08K3/26C08K7/26
Inventor 郑勇明朱继锋林伟凌文谢思源李天豪王长杰杨丽芳
Owner 广东雷能电力集团有限公司
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