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Composite phase-change temperature-adjusting material and preparation method thereof, multi-phase-change temperature-adjusting fiber and preparation method and application of multi-phase-change temperature-adjusting fiber

A composite phase-change and temperature-regulating fiber technology, applied in the fiber field, can solve problems such as the narrow field of heat storage and temperature-regulating fibers, and restrictions on the popularization and application of phase-change energy storage cellulose fibers.

Active Publication Date: 2021-06-15
青岛尼希米生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the heat storage and temperature regulation fibers in the prior art have only one phase change temperature regulation temperature, and the phase change temperature regulation temperature is relatively fixed, so that the application field of the heat storage temperature regulation fiber is relatively narrow, which limits the phase change energy storage fiber. Promotion and Application of Fiber

Method used

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  • Composite phase-change temperature-adjusting material and preparation method thereof, multi-phase-change temperature-adjusting fiber and preparation method and application of multi-phase-change temperature-adjusting fiber

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preparation example Construction

[0043] In the present invention, the preparation method of the phase change energy storage microcapsules preferably includes the following steps:

[0044] The capsule core material, capsule wall material and water are first mixed and then emulsified and dispersed to obtain an oil-in-water emulsion;

[0045] The oil-in-water emulsion is subjected to complex coacervation reaction and secondly mixed with a curing agent for cross-linking reaction to obtain phase-change energy storage microcapsules.

[0046] In the invention, the capsule core material, capsule wall material and water are first mixed and then emulsified and dispersed to obtain the oil-in-water emulsion. In the present invention, the first mixing preferably includes the following steps:

[0047] Dissolving the capsule wall material in water to obtain a capsule wall material solution;

[0048] The capsule core material is melted and mixed with the capsule wall material solution.

[0049] The invention dissolves the c...

Embodiment 1

[0099] Dissolve gelatin and gum arabic in water at 45°C according to the mass ratio of 1:1 to obtain a capsule wall material solution with a total mass concentration of gelatin and gum arabic of 12%; mix n-heptadecane melted at 25°C with the capsule wall material solution (the mass ratio of the total mass of gelatin and gum arabic gum and n-heptadecane is 3:2) carry out emulsification dispersion with the rotating speed of 1860r / min in the water bath of 25 DEG C after, every 30min detect the particle diameter of an emulsion, when the emulsion When the D90 particle size is 1.55 μm, the emulsification and dispersion are stopped to obtain an oil-in-water emulsion;

[0100] After the pH value of the oil-in-water emulsion is adjusted to 3, the complex coagulation reaction is carried out for 35 minutes at a temperature of 10° C. and a rotating speed of 1000 r / min; after the pH value of the feed liquid after the complex coagulation reaction is adjusted to 7.0, and Dialdehyde (the mass...

Embodiment 2

[0106] Dissolve gelatin and gum arabic in water at 55°C according to the mass ratio of 1:1 to obtain a capsule wall material solution with a total mass concentration of gelatin and gum arabic of 20%; mix n-hexadecane melted at 27°C with the capsule wall material solution (the mass ratio of the total mass of gelatin and gum arabic and n-hexadecane is 2:2) afterward, carry out emulsification dispersion with the rotating speed of 2100r / min in the water bath of 32 ℃, every 30min detect the particle diameter of an emulsion, when the emulsion When the D90 particle size is 1.265 μm, stop emulsification and dispersion to obtain an oil-in-water emulsion;

[0107] After the pH value of the oil-in-water emulsion was adjusted to 4, the complex coagulation reaction was carried out for 28 minutes at a temperature of 18° C. and a rotating speed of 1225 r / min; after the complex coagulation reaction, the pH value of the feed liquid was adjusted to 7.5 and more POM (the mass ratio of paraformal...

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Abstract

The invention belongs to the technical field of fibers, and particularly relates to a composite phase-change temperature-adjusting material and a preparation method thereof, and a multi-phase-change temperature-adjusting fiber and a preparation method and application of the multi-phase-change temperature-adjusting fiber. The provided composite phase-change temperature-regulating material comprises phase-change energy-storage microcapsules and phase-change energy-storage aerogel which are dispersed in a dispersing agent; the capsule core material of the phase-change energy-storage microcapsules is n-hexadecane or n-heptadecane, and the capsule wall material is gelatin and Arabic gum; and the phase-change energy-storage aerogel comprises graphene aerogel and a phase change compound adsorbed in pores of the graphene aerogel, and the phase change compound comprises n-nonadecane, n-eicosane or n-heneicosane. In the invention, the composite phase-change temperature-regulating material comprises two phase-change temperature-regulating materials, has two phase-change temperature-regulating temperatures, and can meet the requirements of different temperatures and multiple application fields.

Description

technical field [0001] The invention belongs to the field of fiber technology, and in particular relates to a composite phase-change temperature-regulating material and a preparation method thereof, multiple phase-change temperature-regulating fibers, a preparation method and application thereof. Background technique [0002] As one of the important varieties of textile fibers, cellulose fiber has the characteristics of hygroscopicity, good air permeability and comfortable wearing, so it is welcomed by more and more consumers. [0003] The main purpose of the heat storage and temperature regulating fiber is to improve the comfort of clothing. It is a high-tech fiber that can sense the temperature change of the external environment and adjust the temperature. The fiber can absorb heat when the ambient temperature is higher than the phase change temperature of the phase change material. And when the ambient temperature is lower than the phase change temperature of the phase ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06B01J13/10B01J13/00D01F1/10D01F2/00D01D5/06
CPCB01J13/0091B01J13/10C09K5/063D01D5/06D01F1/10D01F2/00
Inventor 赵健
Owner 青岛尼希米生物科技有限公司
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