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Urushiol organic silicon resin and preparing method thereof

A technology of silicone and urushiol, applied in the direction of coating, can solve the problems of poor weather resistance, difficult to apply to pure water vapor or hot gas environment, etc., and achieve the effect of excellent high temperature resistance

Inactive Publication Date: 2010-06-23
中华全国供销合作总社西安生漆涂料研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Raw lacquer has outstanding comprehensive anti-corrosion performance, but its weather resistance is poor. Silicone resin has excellent weather resistance, heat resistance, gloss retention, acid rain resistance, stain resistance, moisture resistance, water repellency, electrical insulation, high Low temperature, chemical stability and other properties
Currently used coating products or resins are difficult to apply to pure water vapor or hot water environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The preparation method of above-mentioned urushiol silicone resin, comprises the following steps:

[0020] Step 1: First, separate and extract urushiol from lacquer produced in Ankang, Hanzhong, Chengkou, Maoba, Qinling and other areas, then heat the urushiol solution to 60°C to 100°C, and add the formula The formaldehyde, furfural and catalyst are synthesized for 2 to 6 hours, and after the reaction is completed, the temperature is raised for dehydration;

[0021] Step 2, after dehydration, wait for the temperature of the reactants to drop to 110°C, add the epoxy resin of the formula (it is also possible to use urushiol and aldehyde compounds to directly react with the organosilicon prepolymer to synthesize without epoxy resin), organic The silicon prepolymer and the diluent are reacted at 100°C to 145°C for 1 to 4 hours for synthesis. When the reaction time is reached, stop heating and cool down to room temperature to obtain the urushiol silicone resin.

[0022] The ...

Embodiment 1

[0028] Its weight percent formula of the urushiol silicone resin of the present embodiment is as follows:

[0029] component name

[0030] According to the above mass ratio formula, urushiol is firstly separated and extracted from lacquers produced in Ankang, Hanzhong, Chengkou, Maoba, Qinling and other areas, then the urushiol solution is heated to 60°C, and formaldehyde and catalyst are added. React for 2.5 hours, heat up and dehydrate, and when the system temperature drops to 110°C, add epoxy resin, silicone prepolymer, xylene and butanol, and react for 1 hour to obtain urushiol silicone resin.

Embodiment 2

[0032] Its weight percent formula of the urushiol silicone resin of the present embodiment is as follows:

[0033] component name

[0034] According to the above mass ratio formula, heat the urushiol solution to 60°C, add furfural and catalyst to react for 2.5 hours, heat up and dehydrate, wait until the system temperature drops to 110°C, add organosilicon monomer and cyclohexanone, and react for 2 hours, that is Urushiol silicone resin was obtained.

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PUM

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Abstract

The present invention discloses a urushiol organic silicon resin and a preparing method thereof. The urushiol organic silicon resin is prepared from the following raw materials of the percentages by weight: 20 to 30% of urushiol, 4 to 6% of aldehyde compound, 3 to 30% of organic silicon prepolymer, 0.5 to 1.5% of catalyst and 40 to 55% of diluent, based on the total weight of the raw materials. As an alternative, 5 to 20% of epoxy resin is added. The urushiol organic silicon resin has excellent properties on resisting heat, water, oxidation, cold, radiation, etc. The urushiol organic silicon resin can be broadly used in the fields of military affairs, aerospace, electronics, machinery, construction, chemical engineering, etc.

Description

technical field [0001] The invention relates to a resin and its preparation, in particular to an urushiol silicone resin and its preparation method. The urushiol silicone resin has heat resistance, corrosion resistance, cold resistance, water repellency, anti-oxidation, anti-radiation, etc. Excellent performance. It can be widely used in military, aerospace, electronics, machinery, construction, chemical and other fields. Background technique [0002] Raw lacquer has outstanding comprehensive anti-corrosion performance, but its weather resistance is poor. Silicone resin has excellent weather resistance, heat resistance, gloss retention, acid rain resistance, stain resistance, moisture resistance, water repellency, electrical insulation, high Low temperature, chemical stability and other properties. Currently used coating products or resins are difficult to apply to pure water vapor or hot water gas environment. Contents of the invention [0003] In order to break throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C08G81/00C09D161/14C09D187/00
Inventor 张飞龙贺娜
Owner 中华全国供销合作总社西安生漆涂料研究所
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