A kind of preparation method and color-changing microcapsules of color-changing microcapsules that can be applied in textile

A microcapsule and textile technology, applied in microcapsule preparations, microsphere preparation, color-changing fluorescent materials, etc., can solve the problems of insufficient color-changing sensitivity and failure to meet requirements, achieve high temperature sensitivity, reduce damage, and improve electron transfer. effect of speed

Active Publication Date: 2022-04-19
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 color-changing microcapsules is not enough. Generally, the discoloration reaction time reaches more than 40 seconds. For some occasions that require high discoloration sensitivity, it is still not up to the requirement.

Method used

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  • A kind of preparation method and color-changing microcapsules of color-changing microcapsules that can be applied in textile
  • A kind of preparation method and color-changing microcapsules of color-changing microcapsules that can be applied in textile

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-(methyl 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 dispersion liquid 1, and stir evenly to obtain emulsion 1; add 1.2 parts by weight of potassium persulfate to emulsion 1, heat up to 30°C, slowly add 0.8 parts by weight of ferrous sulfate, and react 3 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, and 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 color-changing microcapsules that can be used in textiles and the color-changing microcapsules. Mix, heat and melt, add an emulsifier, stir at a constant temperature to disperse evenly, and obtain a dispersion; under high-speed stirring, add water to the dispersion, stir evenly, and obtain an emulsion; add a water-soluble free radical initiator to the emulsion, and control it at React at a certain temperature for a period of time, filter, wash, and dry to obtain color-changing microcapsules. The invention uses free radical polymerization at the water-oil interface to obtain the outer wall filled with nano-tourmaline, which can not only reduce the discoloration reaction time, but also increase the mechanical strength of the wall material, and has good application effect.

Description

technical field [0001] The invention belongs to the technical field of color-changing microcapsules, and in particular relates 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 widely used in life and industry. [0003] However, the discoloration sensitivity of the current discoloration microcapsules is not enough. Generally, the discoloration reaction time reaches more than 40 seconds, which is not enough for some occasions requiring high discoloration sensitivity. On the other hand, it is also necessary to increase the strength of the wall material of the microcapsules to improve the stability during application and reduce or avoid damage. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(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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