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A kind of phase change fiber with temperature regulation function and its preparation method and application

A phase-change fiber and temperature-regulating technology, which is used in aerospace, decorative heat-storing and temperature-regulating textiles, phase-change fiber and its preparation, and clothing fields. It can solve the problems of fiber use limitations, difficult industrialization, and large fiber diameters. , to achieve excellent temperature adjustment effect, strong operability and simple equipment

Active Publication Date: 2021-06-25
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the hollow fiber impregnation filling method is used to produce phase change energy storage fibers, due to the large diameter of the fibers, the use of the fibers is limited, and this production method is difficult to industrialize
The microcapsules are on the surface of the fiber products prepared by the microcapsule coating method, and the washing resistance is extremely poor and easy to be destroyed.

Method used

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  • A kind of phase change fiber with temperature regulation function and its preparation method and application
  • A kind of phase change fiber with temperature regulation function and its preparation method and application
  • A kind of phase change fiber with temperature regulation function and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of temperature-adjusted phase change fibers:

[0040](1) Preparation of n-octadecane phase-change microcapsules: Weigh 4 g of n-octadecane and 6 mL of tetraethyl orthosilicate (TEOS), put them in a 100 mL beaker, dissolve and stir at 35°C to form Add 0.65g of CTAB, 75mL of deionized water and 10mL of absolute ethanol to the beaker in order to clarify the homogeneous solution, continue to place the above mixture at 35°C and stir for 20min to form a solution, and transfer the solution to a 100mL three-necked flask. Stir in an oil bath at 35°C. After 6 hours, 1 mL of ammonia solution with a mass fraction of 25% was added dropwise, and stirred at constant temperature for 24 hours. After the reaction was completed, the obtained solution was centrifuged at a speed of 6000r / min for 15min, and the supernatant was poured out after centrifugation to leave the bottom precipitate. Continue to add absolute ethanol to the precipitate to wash and centrifuge. After repeati...

Embodiment 2

[0046] Preparation of temperature-adjusted phase change fibers:

[0047] (1) Preparation of n-octadecane phase-change microcapsules: Weigh 4 g of n-octadecane and 6 mL of tetraethyl orthosilicate (TEOS), put them in a 100 mL beaker, dissolve and stir at 35°C to form Add 0.65g of CTAB, 75mL of deionized water and 10mL of absolute ethanol to the beaker in order to clarify the homogeneous solution, continue to place the above mixture at 35°C and stir for 20min to form a solution, and transfer the solution to a 100mL three-necked flask. Stir in an oil bath at 35°C. After 6 hours, 1 mL of ammonia solution with a mass fraction of 25% was added dropwise, and stirred at constant temperature for 24 hours. After the reaction was completed, the obtained solution was centrifuged at a speed of 6000r / min for 15min, and the supernatant was poured out after centrifugation to leave the bottom precipitate. Continue to add absolute ethanol to the precipitate to wash and centrifuge. After repeat...

Embodiment 3

[0052] Preparation of temperature-adjusted phase change fibers:

[0053] (1) Preparation of n-octadecane phase-change microcapsules: Weigh 4 g of n-octadecane and 6 mL of tetraethyl orthosilicate (TEOS), put them in a 100 mL beaker, dissolve and stir at 35°C to form Add 0.65g of CTAB, 75mL of deionized water and 10mL of absolute ethanol to the beaker in order to clarify the homogeneous solution, continue to place the above mixture at 35°C and stir for 20min to form a solution, and transfer the solution to a 100mL three-necked flask. Stir in an oil bath at 35°C. After 6 hours, 1 mL of ammonia solution with a mass fraction of 25% was added dropwise, and stirred at constant temperature for 24 hours. After the reaction was completed, the obtained solution was centrifuged at a speed of 6000r / min for 15min, and the supernatant was poured out after centrifugation to leave the bottom precipitate. Continue to add absolute ethanol to the precipitate to wash and centrifuge. After repeat...

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Abstract

The invention discloses a phase change fiber with temperature regulation function, a preparation method and application thereof, and belongs to the technical field of textile technology. In the method of the invention, the spinning solution containing the phase-change microcapsules is loaded into the air pressure syringe, the spinning solution is ejected from the needle by the action of air pressure, and the jet is formed under the auxiliary action of the air flow, and the jet is drawn by gravity and the roller collecting device. Under the action of stretching, it is drawn and drawn and collected in the form of filaments, so that the temperature-adjusted phase change fiber can be obtained. The method of the invention has the advantages of strong operability, simple equipment, short process and energy saving, and can fully utilize each component material without waste; It can be used many times; it has large melting enthalpy and crystallization enthalpy, and can achieve excellent temperature adjustment effect.

Description

technical field [0001] The invention belongs to the technical field of functional fibers, and specifically relates to a phase-change fiber with temperature-regulating function and its preparation method and application, which are suitable for thermal storage and temperature-regulating textiles for aerospace, clothing and decoration. Background technique [0002] With the improvement of people's living standards, the requirements for fiber products are getting higher and higher, especially in terms of the temperature control ability of fiber products. For example, decorative textiles such as airplanes, automobiles, ships and high-speed rails require the function of two-way temperature regulation. Phase change materials (PCM), also known as phase change energy storage materials, have attracted widespread attention due to their high energy storage density and adjustable phase change temperature. [0003] As an excellent latent heat storage material, solid-liquid PCM has the ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10D01F2/28
CPCD01F1/10D01F2/28
Inventor 蔡以兵杜明玥李松麒黄锋林魏取福
Owner JIANGNAN UNIV