Photosensitive microcapsule containing photochromic material, and preparation method and application thereof

A technology of photosensitive discoloration and microcapsules, which is applied in the direction of microcapsule preparation, microsphere preparation, application, etc., can solve the problems of insufficient stability and interface polymerization of organic discoloration materials, and achieve good light transmission performance, good mechanical properties, The effect of good thermal stability

Inactive Publication Date: 2019-06-14
SHANGHAI GANTIAN OPTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] U.S. Patents US4682194, US4446376, US4411979, US4742043 and Chinese Patent CN1386095A (ZL01802048.8), CN1731276A all use non-photochemical interfacial polymerization technology in microcapsule polymerization. Under heating reaction conditions, the stability of the coated organic color-changing material and The thoroughness of the interfacial polymerization reaction is insufficient

Method used

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  • Photosensitive microcapsule containing photochromic material, and preparation method and application thereof
  • Photosensitive microcapsule containing photochromic material, and preparation method and application thereof
  • Photosensitive microcapsule containing photochromic material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Add 28 grams of floating refined acid anhydride (FULGIDE, Beijing Donghua Lituo Technology Development Co., Ltd.), 10 grams of pentaerythritol tetraacrylate (PETTA, purchased from Shanghai Fushun International Trade Co., Ltd.) into an internally illuminated 500ml quartz photochemical reactor (L60-45, Beijing Pofeilai Technology Co., Ltd.), heat up to 80 ° C, stir and mix, add 0.25 grams of Span40 (sorbitan palmitic acid monoester, Span-40, Jiangsu Hai'an petrochemical plant) to continue stirring for 30 minutes.

[0050] Add 150ml of deionized water to the above photochemical reactor, stir at a high speed of 3000 rpm for 5 minutes, add 0.5 grams of WB-4784 (benzophenone is the derivative of the parent, and the substituent is 2-hydroxypropoxyl) to the system. -Trimethylammonium chloride salt, AR, Shanghai Fushun Group International Trade Co., Ltd.) and 5ml acetone, continue to stir for 30 minutes, turn on the ultraviolet light source and react with light for 1.5h under th...

Embodiment 2

[0062]30 grams of dithiophene ethylene compound (2-Vinylthiophene, AR, Anaiji Chemical Co., Ltd.) with maleic anhydride as an ene bridge, 8.0 grams of 1,6-hexanediol diacrylate (HDDA, purchased from Shanghai Fushun International Trading Co., Ltd.) was added into the photochemical reactor made of 500ml quartz in the interior illumination type, the temperature was raised to 80° C., stirred and mixed, and when it was cooled to near room temperature, 0.25 gram of Span80 (sorbitan fatty acid ester, Jiangsu Haian Petrochemical Plant, ) to continue stirring for 30 minutes.

[0063] Add 150ml of deionized water into the photochemical reactor, stir at a high speed of 5000 rpm for 5 minutes, add 0.5 grams of WB-4784 (benzophenone is the derivative of the parent, and the substituent is 2-hydroxypropoxy- Trimethylammonium chloride salt, AR, Shanghai Fushun Group International Trade Co., Ltd.) and 5ml acetone, continued to stir for 30 minutes, turned on the ultraviolet light source (wavele...

Embodiment 3

[0066] 28 grams of azobenzene (purchased from Shanghai Shifeng Biotechnology Co., Ltd.), 8 grams of acrylonitrile (purchased from AN Jiangsu Sailbang Petrochemical Co., Ltd.), and 1.2 grams of butyl acrylate (purchased from Pinghu Petrochemical Co., Ltd.) were added to the In an internally illuminated 500ml quartz photochemical reactor, the temperature was raised to 80° C., stirred and mixed, and when it was cooled to near room temperature, 0.3 g of Span40 was added and stirred for 30 minutes.

[0067] Add 150ml of deionized water into the photochemical reactor, stir at a high speed of 3500 rpm for 15 minutes, add 0.5 grams of WB-4698 (benzophenone is the derivative of the parent, and the substituent is 2-sodium methylsulfonate , AR, Shanghai Fushun Group International Trade Co., Ltd.) and 8ml acetone, continue to stir for 30 minutes, turn on the ultraviolet light source (wavelength 365nm) light reaction 2.5h.

[0068] After the light reaction is completed, the temperature is ...

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Abstract

The invention discloses a photosensitive microcapsule containing a photochromic material. The photosensitive microcapsule is composed of a capsule wall and a capsule core, the material of the capsulewall is a capsule wall polymer, and is formed by photopolymerization of a photopolymerizable or photocrosslinkable monomer, and the material of the capsule core is a photochromic polymeric material ora photochromic polymer. The photosensitive microcapsule containing the photochromic material has a good thermal stability, cannot be deformed or stretched under a heating condition, has good mechanical properties, can maintain the integrity and elasticity of the capsule body and protect substances in the capsule core under the impact of an external force, and is isolated from the external environment; and the photosensitive microcapsule also has a good light transmission property, so ultraviolet lights or sunlight can permeate the capsule wall smoothly and illuminate the photochromic materialof the capsule core in order to promote the photosensitive effect.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a photosensitive microcapsule containing a photosensitive color-changing material and a preparation method and application thereof. Background technique [0002] Photochromism refers to the reversible transformation process of certain chemical substances between two states with different colors after being excited by light. For example: photochromic reactions of azobenzenes, fulgid anhydrides, spiropyrans, spirooxazines, diarylethenes and several new organic photochromic materials, and compared their advantages and disadvantages including stability Among them, the diarylethene system is currently the most promising photoinduced photocatalyst due to its extremely high thermal stability, excellent fatigue resistance, and significant differences in physical and chemical properties between different isomer states. One of the color changing systems. Photochromi...

Claims

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Application Information

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IPC IPC(8): B01J13/02A45D34/00
Inventor 赵敏甘家安程毅
Owner SHANGHAI GANTIAN OPTICAL MATERIALS
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