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Preparation method for amino silicone modified urushiol light-cured film

A technology of amino silicone and silicone, applied in the direction of coating, etc., can solve the problems of increased energy consumption, long time consumption, and high cost, and achieve the effects of excellent chemical resistance, low price, and excellent adhesion

Active Publication Date: 2014-04-09
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently disclosed urushiol silicone polymers prepared by techniques such as transesterification, although these techniques can produce urushiol silicone polymers with excellent performance, it takes a long time, so its energy consumption will increase, which makes When it is suitable for industrial production, it has disadvantages such as high cost

Method used

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  • Preparation method for amino silicone modified urushiol light-cured film
  • Preparation method for amino silicone modified urushiol light-cured film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 5.0 g of urushiol and 7.8 g of xylene into a three-necked flask, mix them in advance to form a mixed solution, raise the temperature to 138° C., and remove water at a constant temperature for 30 minutes.

[0034] After cooling the mixture to 80°C, add 6.7 g of 3-aminopropyltriethoxysilane (KH550), then raise the temperature to 90°C, and react for 3 hours to obtain 3-aminopropyltriethoxysilane modified paint Phenol prepolymer mixture.

[0035] Coat the 3-aminopropyltriethoxysilane-modified urushiol prepolymer mixture on a clean glass sheet and irradiate it under ultraviolet light for 30 seconds to obtain 3-aminopropyltriethoxysilane-modified Urushiol light-cured film.

[0036] The prepared 3-aminopropyltriethoxysilane modified urushiol light-cured film was analyzed by infrared spectrogram, and the results are shown in the attached figure 1 Shown; Carry out thermal gravimetric spectrum analysis, its result is as attached figure 2 shown.

[0037] The performance t...

Embodiment 2

[0045] Add 6.7 grams of urushiol and 7.8 grams of xylene into a three-necked flask, mix them in advance to form a mixed solution, raise the temperature to 138° C., and remove water at a constant temperature for 30 minutes.

[0046] After cooling the mixed solution to 80°C, add 2.5 g of N-silylpropyl-N-formyl p-methylaniline and 2.0 g of 3-aminopropyltrimethoxysilane, then raise the temperature to 100°C, and react for 2 hours to obtain N-silylpropyl-N-formyl p-methylaniline-3-aminopropyltrimethoxysilane modified urushiol prepolymer mixture.

[0047] Coat the N-silylpropyl-N-formyl p-methylaniline-3-aminopropyltrimethoxysilane modified urushiol prepolymer mixture on the tinplate polished by sandpaper, and irradiate it under ultraviolet light After 60 seconds, an N-silylpropyl-N-formyl-p-methylaniline-3-aminopropyltrimethoxysilane-modified urushiol light-cured film was obtained.

[0048] The performance test results of the N-silylpropyl-N-formyl p-methylaniline-3-aminopropyltrim...

Embodiment 3

[0056] Add 8.0 g of urushiol and 7.8 g of xylene into a three-necked flask, mix them in advance to form a mixed solution, raise the temperature to 138° C., and remove water at constant temperature for 30 minutes.

[0057] After cooling the mixed solution to 80°C, add 3.6 g of bis(dimethylamino)methylvinylsilane, then raise the temperature to 110°C, and react for 1.5 hours to obtain bis(dimethylamino)methylvinylsilane modified urushiol prepolymer mixture.

[0058] Bis(dimethylamino)methylvinylsilane modified urushiol prepolymer mixture is coated on a clean glass sheet, and after 90 seconds of irradiation under ultraviolet light, bis(dimethylamino)methylvinyl Silane-modified urushiol light-cured film.

[0059] The performance test results of the bis(dimethylamino)methylvinylsilane-modified urushiol light-cured film prepared in this embodiment are as follows:

[0060] Pencil hardness: 6H

[0061] Adhesion: Level 1

[0062] Flexibility: 0.5 mm

[0063] Impact resistance: 50cm...

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Abstract

The invention relates to a preparation method for an amino silicone modified urushiol light-cured film. The method is characterized by comprising the following steps of pre-mixing urushiol and dimethylbenzene to obtain mixed liquor, performing dehydration, adding amino silicone, and performing constant temperature reaction to obtain amino silicone modified urushiol prepolymer mixed liquor; coating clean sheet glass or a tinplate sheet polished by sandpaper with the prepared amino silicone modified urushiol prepolymer mixed liquor, and performing ultraviolet irradiation to obtain the amino silicone modified urushiol light-cured film. The preparation method has the advantages that 1, urushiol is a natural renewable resource, and is extensive and low in cost; 2, the amino silicone modified urushiol light-cured film can be rapidly prepared; 3, an amino silicone modified urushiol light-cured film coating prepared by the method has high adhesion, flexibility, impact resistance, chemical medium resistance and heat resistance. The amino silicone modified urushiol light-cured film is applied to the field of high-performance coatings.

Description

technical field [0001] The invention relates to a preparation method of a light-cured film, in particular to a preparation method of an urushiol photo-cured film modified by aminoorganosilicon, and belongs to the field of high-performance chemical coatings. Background technique [0002] Since the 21st century, my country's light curing industry has developed rapidly, and my country has gradually developed into the third largest UV curing product production area in the world after the United States and Japan. UV curing coating is a kind of high-efficiency, energy-saving and environment-friendly coating. It has excellent comprehensive performance, fast curing speed, low curing temperature, low energy consumption, and low pollution. It has a wide range of applications and is gradually replacing traditional curing coatings. The amino silicone material has unique properties such as high and low temperature resistance, weather resistance, aging resistance, electrical insulation, o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C08J5/18C09D161/14
Inventor 陈钦慧林金火
Owner FUJIAN NORMAL UNIV
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