Preparation method of color-changing microcapsule capable of being applied to textile and color-changing microcapsule

A microcapsule and textile technology, which is applied in the direction of microcapsule preparation, microsphere preparation, color-changing fluorescent materials, etc., can solve the problems of insufficient discoloration sensitivity and failure to meet the requirements, and achieve high temperature sensitivity, reduce damage, and high conductivity Effect

Active Publication Date: 2020-09-01
福建拓烯新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the discoloration sensitivity of the current discoloration microcapsules is not enough, and the discoloration reaction time generally reaches more than 40 seconds, and for some occasions requiring high discoloration sensitivity, it is still not up to the requirement

Method used

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  • Preparation method of color-changing microcapsule capable of being applied to textile and color-changing microcapsule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1 part by weight of crystal violet lactone, 3 parts by weight of bisphenol A, 30 parts by weight of n-tetradecyl alcohol, 2.8 parts by weight of butyl methacrylate, 0.2 parts by weight of tripropylene glycol diacrylate and 1 part by weight of 3-(formyl 2.5 parts by weight of OP-10 and 0.5 parts of sodium dodecylbenzenesulfonate were added, stirred and dispersed at a constant temperature to obtain dispersion 1; Under high-speed stirring, add 80 parts by weight of water to the dispersion liquid 1, and stir evenly to obtain emulsion 1; Hours, suction filtration, washing, drying, to obtain color-changing microcapsules 1.

Embodiment 2

[0029] 1 part by weight of 2-anilino-6-diethylaminofluorane, 4 parts by weight of bisphenol F, 38 parts by weight of n-stearyl alcohol, 4.5 parts by weight of styrene, 0.5 parts by weight of trivinylbenzene and 3 parts by weight of 3 -(Methacryloyloxy)propyltriethoxysilane-treated nano-tourmaline mixed, heated and melted, added 6 parts by weight of OP-10 and 1 part by weight of sodium lauryl sulfate, stirred at a constant temperature to disperse evenly, and obtained a dispersed Liquid 2; under high-speed stirring, add 110 parts by weight of water to the dispersion liquid 2, and stir evenly to obtain emulsion 2; add 2.5 parts by weight of ammonium persulfate to the emulsion 2, heat up to 35°C, slowly add 1 part by weight of sodium sulfite, and react After 2.5 hours, filter, wash, and dry to obtain color-changing microcapsules 2 .

Embodiment 3

[0031] 1 part by weight of crystal violet lactone, 5 parts by weight of 1,5-dihydroxynaphthalene, 47 parts by weight of n-octadecane, 6.6 parts by weight of isooctyl methacrylate, 0.4 parts by weight of pentaerythritol tetraacrylate and 6 parts by weight of vinyl Mix the nano-tourmaline treated with trimethoxysilane, heat and melt, add 8 parts by weight of AEO-10 ​​and 2 parts by weight of sodium dodecylbenzenesulfonate, stir and disperse evenly at a constant temperature, and obtain dispersion 3; Add 130 parts by weight of water to liquid 3, stir evenly to obtain emulsion 3; add 4 parts by weight of water-soluble azo free radical initiator AIBI to emulsion 3, heat up to 60°C and react for 6 hours, suction filter, wash, dry, Obtain color-changing microcapsules 3.

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Abstract

The invention belongs to the technical field of color-changing microcapsules, and relates to a preparation method of a color-changing microcapsule capable of being applied to textile and the color-changing microcapsule, which comprises the following steps: mixing a color former, a color developing agent, a solvent, a monomer containing carbon-carbon double bonds and nano tourmaline, heating to melt, adding an emulsifier, stirring at constant temperature, and uniformly dispersing to obtain a dispersion liquid; adding water into the dispersion liquid under high-speed stirring, and uniformly stirring to obtain an emulsion; and adding a water-soluble free radical initiator into the emulsion, controlling the temperature to be certain, reacting for a period of time, and carrying out suction filtration, cleaning and drying to obtain the color-changing microcapsule. The outer wall filled with the nano tourmaline is obtained through free radical polymerization on a water-oil interface, the discoloration reaction time can be shortened, the mechanical strength of the wall material can be improved, and a good application effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of color-changing microcapsules, in particular to a method for preparing color-changing microcapsules that can be used in textiles and the color-changing microcapsules. Background technique [0002] Color-changing microcapsules refer to a new type of material with a core-shell structure, the core is mainly a chromogenic agent and a color developer, and the shell wall is a protective material. It has been used in many applications in life and industry. [0003] But the discoloration sensitivity of present discoloration microcapsule is not enough, and general discoloration reaction time all reaches more than 40 seconds, for some occasions requiring discoloration sensitivity height, also can't meet requirement. On the other hand, it is also necessary to improve the strength of the wall material of the microcapsules to improve the stability during application and reduce or avoid damage. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/16C09K9/02C08F292/00C08F220/18C08F222/20C08F222/14C08F212/08C08F212/34
CPCB01J13/16C09K9/02C08F292/00C08F220/1804C08F220/1808C08F212/08C08F222/102C08F222/104C08F222/103C08F212/34
Inventor 翁朝阳
Owner 福建拓烯新材料科技有限公司
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