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Method for preparing water-based nano silicon resin compound

A technology of nano-silicone resin and nano-oxide, applied in the direction of coating, etc., can solve the problems of exceeding the application standard, failing to meet the national standard, low friction coefficient and wear resistance, etc., and achieve the effect of improving product grade and increasing the scope of use

Inactive Publication Date: 2011-08-17
HUANGSHAN YANGXIN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a national standard for the verification of environmentally friendly paints that are harmless to the human body is that the volatile organic content (VOC) in the paint is less than 200 g / l, while the paint formulated with oily silicone resin requires a large amount of organic solvents, not only in the preparation of silicon The resin process fails to meet the national standard, and even seriously exceeds the standard in application
[0003] Teflon PTFE (polytetrafluoroethylene) resin for non-stick coatings has a maximum service temperature of 290-300 ° C, extremely low friction coefficient, good wear resistance and excellent chemical stability, but it is used for Ammonium perfluorooctanoate, which makes the Teflon coating, releases toxic particles when heated to 240 degrees Celsius, which can seriously injure a mouse within 10 minutes and be fatal in a longer period

Method used

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  • Method for preparing water-based nano silicon resin compound
  • Method for preparing water-based nano silicon resin compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Put 500g of methyltriethoxysilane, 20g of phenyltriethoxysilane, 40g of nano-alumina, 12g of phosphotungstic acid and 30g of deionized water in a three-necked flask, and stir and react at 25-30°C for 10 hours. Then add 80 g of deionized water to adjust the viscosity of the solution to 15 cp (25° C.). The obtained colorless and transparent one-component silicone resin has a solid content of 35%.

Embodiment 2

[0026] Put 250kg of methyltrimethoxysilane, 50kg of ethyl orthosilicate, 20kg of nano-silicon oxide, 8kg of silicotungstic acid and 20kg of deionized water into a 500L reactor, stir and react at 25-30°C for 10 hours, then add 50kg deionized water, adjust the solution viscosity to 12cp (25°C). A colorless and transparent one-component silicone resin was obtained, and its solid content was measured to be 31%.

Embodiment 3

[0028] Preparation of two-component water-based nano-silicone resin:

[0029] Component A: Fully mix 25g of nano-alumina, 80g of nano-silicon oxide, 5g of phosphoric acid, 5g of phosphotungstic acid, and 10g of deionized water. The measured solid content is 32%, and the viscosity is 13cp (25°C).

[0030] Component B: 60g of phenyl triethoxysilane, 40g of ethyl orthosilicate, and 30g of octamethylcyclotetrasiloxane.

[0031] Weigh components A and B in equal amounts, mix thoroughly in a high-speed mixer until transparent, and take samples for testing.

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Abstract

The invention provides a method for preparing a water-based nano silicon resin compound. The water-based nano silicon resin is prepared from one or more siloxanes by hydrolysis and condensation polymerization reaction at normal temperature under normal pressure in the presence of a nano oxide under the initiation of a catalyst. The water-based nano silicon resin serving as a base material is provided for preparing an industrial coating with excellent properties such as thermal stability, abrasion resistance, adhesion resistance, cleaning easiness, high strength and the like.

Description

technical field [0001] The invention relates to a preparation method of a water-based nano-silicone resin compound and the application of the water-based nano-silicone resin in industrial coatings, belonging to the field of new materials. Background technique [0002] At present, the silicone resin used in the production of coatings such as non-stick pans, electric irons, exhaust pipes, hair pullers, and various plastic panels in China is mainly oily silicone resin. This type of silicone resin has the advantages of good adhesion, high hardness, high gloss, and high temperature resistance. As a raw material for hardening coatings and protective coatings for various metal products, decorative materials, and stone carvings, it can significantly improve the coating quality. Excellent wear resistance (high hardness), high temperature resistance, aging resistance, corrosion resistance, water resistance and UV resistance. However, a national standard for the verification of enviro...

Claims

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Application Information

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IPC IPC(8): C08G77/06C08G77/18C08G77/16C08K3/22C08K3/36C09D183/06
Inventor 俞介兵许俊杰
Owner HUANGSHAN YANGXIN PAINT
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