Phase change micro-capsule for clothing thermoregulation as well as preparation method and application thereof

A phase change microcapsule and temperature regulation technology, which is applied in the field of clothing and textiles to achieve the effects of large heat storage, stable performance and low cost

Inactive Publication Date: 2014-07-23
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the various shortcomings of a single phase change material, the present invention provide

Method used

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  • Phase change micro-capsule for clothing thermoregulation as well as preparation method and application thereof
  • Phase change micro-capsule for clothing thermoregulation as well as preparation method and application thereof
  • Phase change micro-capsule for clothing thermoregulation as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of microcapsules: Weigh 4% OP-10 emulsifier and mix with the core material, wherein the core material is a mixture of n-octadecane and n-hexadecane with a mass ratio of 11.3:1, add deionized water Dissolve, transfer to a three-necked flask, stir at 2000r / min under nitrogen protection, and stir for 30min to form an O / W emulsion. Add freshly prepared ferrous sulfate (the amount is 1% of the mass of cetane), ammonium persulfate (the amount is 11% of the mass of hexadecane) and cross-linking agent diethanol dimethyl to the O / W type emulsion Acrylate (the amount is 1.16 times the mass of hexadecane), and methyl methacrylate (MMA) (the amount is 10.3 times the mass of hexadecane) is slowly added dropwise with a constant pressure funnel, and the dropping time is controlled for about 15 minutes (The total amount of dripping is 83% of hexadecane), and the dripping process always ensures stirring at a speed of 2000r / min. Then add the initiator azobisisobutylcyani...

Embodiment example 2

[0033] (1) Preparation of microcapsules: Weigh 9% OP-10 emulsifier and mix with the core material, wherein the core material is a mixture of n-octadecane and n-hexadecane with a mass ratio of 20:1, add deionized water Dissolve, transfer to a three-necked flask, stir at 2000r / min under nitrogen protection, and stir for 30min to form an O / W emulsion. Add freshly prepared ferrous sulfate (1.2% of cetane), ammonium persulfate (13% of cetane) and crosslinker diethanol dimethacrylic acid to the O / W emulsion ester (the dosage is 1.5 times that of hexadecane), and methyl methacrylate (MMA) (the dosage is 13 times that of hexadecane) is slowly added dropwise with a constant pressure funnel, and the dropping time is controlled for about 15 minutes. The process always ensures 2000r / min rotation speed stirring. Then add the initiator azobisisobutylcyanide (AIBN), Na 2 S 2 o 7 (The amount of AIBN is 46% of hexadecane, Na 2 S 2 o 7 The consumption is 13% of hexadecane), because MMA i...

Embodiment example 3

[0038] (1) Preparation of microcapsules: OP-10 emulsifier and core material with 4% core material mass, wherein the core material is a mixture of n-octadecane and n-hexadecane with a mass ratio of 5:1, dissolved in deionized water, Transfer to a three-necked flask, stir at a speed of 2000r / min under nitrogen protection, and stir for 30min to form an O / W emulsion. Add freshly prepared ferrous sulfate (2% of hexadecane), ammonium persulfate (10% of hexadecane) and crosslinker diethanol dimethacrylic acid to the O / W emulsion ester (the dosage is 1.3 times that of hexadecane), and methyl methacrylate (MMA) (the dosage is 14 times that of hexadecane) is slowly added dropwise with a constant pressure funnel, and the dropping time is controlled for about 15 minutes. The process always ensures 2000r / min rotation speed stirring. Then add the initiator azobisisobutylcyanide (AIBN), Na 2 S 2 o 7 (The amount of AIBN is 47% of hexadecane, Na 2 S 2 o 7 The consumption is 16% of hexad...

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Abstract

The invention discloses a phase change micro-capsule for clothing thermoregulation as well as a preparation method and application thereof. The phase change micro-capsule for clothing thermoregulation comprises a core material and a wall material, wherein the core material is a mixture of n-octadecane and n-hexadecane, and the molar ratio between n-octadecane and n-hexadecane is (3 : 1)-(24 : 1); the wall material is methyl methacrylate; the phase change micro-capsule is applied to preparation of a clothing thermoregulation material. The phase change micro-capsule is stable in performance, non-toxic, non-corrosive and low in cost, can not cause super-cooling and super-heating phenomenon in use, has a melting and solidification temperature range just in the temperature range in which a human body can feel comfortable, is uniform in particle size distribution and appropriate in melting heat and solidification heat, meets the flexibility of finished fabrics in a later period, has a relatively large heat storage effect, and is suitable for performing thermoregulation on clothing.

Description

technical field [0001] The invention relates to the preparation and application of phase-change microcapsules for clothing temperature regulation, belonging to the field of clothing textiles. Background technique [0002] With the improvement of people's living standards, people can no longer satisfy themselves by increasing or decreasing the thickness of clothing to improve comfort, although American space cotton, Japanese solar thermal storage fibers, and fibers that emit and absorb far-infrared invented by Tianjin Institute of Textile Technology, etc. The performance of textiles has been greatly improved, but these fiber textiles only have a one-way temperature regulation function, and cannot automatically adjust the internal temperature according to changes in ambient temperature. In the 1970s, the research on phase change materials became a hot spot, and some experts applied it to the textile field, that is, smart fibers appeared. The phase change material in int...

Claims

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Application Information

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IPC IPC(8): C09K5/06B01J13/14D06M23/12D06M101/06
Inventor 方利国刘婧柳思
Owner SOUTH CHINA UNIV OF TECH
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