Controllable temperature phase-change induction fiber and preparation method thereof

A phase change and fiber technology, applied in fiber treatment, spinning solution preparation, cellulose/protein conjugated artificial filament, etc., can solve the problem of poor temperature regulation performance and temperature regulation effect, uneven dispersion of phase change materials, breathability In order to achieve the effects of small phase change volume change, high phase change latent heat, and high air permeability

Inactive Publication Date: 2012-09-19
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fabrics obtained by using the above-mentioned technical methods and equipment have poor air permeability, rough hand feeling, uneven dispersion of phase change materials, easy continuous permeation and loss, not resistant to washing after use, and poor temperature regulation performance and temperature regulation effect.

Method used

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  • Controllable temperature phase-change induction fiber and preparation method thereof
  • Controllable temperature phase-change induction fiber and preparation method thereof
  • Controllable temperature phase-change induction fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Preparation of silk fibroin film

[0015] (1) Degumming of silk

[0016] Weigh a certain amount of mulberry silk, degumming with 0.5‰ (w / w) sodium carbonate solution, the liquor ratio (mass ratio of silk fibroin to solution) is 1:20, boil in boiling water for 30min, and then wash with deionized water , so repeated 3 times to remove sericin on the surface of silk fibroin to obtain pure silk fibroin. The pure silk fibroin after degumming is placed in an oven, baked at a constant temperature of 100°C for 4 hours, and set aside.

[0017] (2) Dissolution of SF

[0018] The degummed mulberry silk was dissolved in LiBr:C 2 h 5 In OH=40:60(w / w) solution, the bath ratio is 1:5, placed in a water bath at (80±2)℃ and stirred at constant temperature until it is completely dissolved to obtain the SF solution.

[0019] (3) Dialysis of SF solution

[0020] Inject the cooled SF solution into a dialysis bag of 8,000 to 14,000 Daltons, seal both ends, run dialysis with tap water...

Embodiment 2

[0027] By the regenerated SF membrane that makes by embodiment 1 and molecular weight 4000 PEG was mixed at a ratio of 8:2 and 7:3 (w / w) respectively and put into the HFIP solution, sealed and placed in a constant temperature water bath shaker (water temperature 25°C), dissolved for 5 days, and a total of SF / PEG with different ratios was obtained. Mixed liquid. After filtering through a stainless steel filter and vacuum defoaming, a pure blended spinning solution with a content of 16% (w / w) was obtained. Pour the SF / PEG mixed solution produced above into the syringe, adjust the distance between the syringe needle and the liquid coagulation collection bath to be 12cm, the voltage of the high-voltage power supply to be 7kv, and the advance speed of the syringe to be 0.40ml / h. The spinning solution forms a jet under the process parameters, and the jet is drawn, and after the solvent is volatilized, a micro-nano fiber mat similar to a non-woven fabric is finally formed in the li...

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Abstract

The invention relates to a functional textile fiber material, and particularly relates to a controllable temperature phase-change induction fiber and a preparation method thereof. The preparation method comprises the steps of: mixing a regenerated silk fibroin film prepared from silk fibroin with polyethylene glycol according to the mass ratio of (9-7): (1-3), dissolving the mixture into a hexafluoroisopropanol solution, and preparing a blend spinning fluid of which the concentration is 6-20%w/w after vacuum defoaming and filtering; and controlling the distance from an injector head of a spinning container to a liquid solidification collection net at 10-15cm by adopting an electrostatic spinning process, wherein the voltage of a high-tension supply is 5-9kv, and obtaining a micro-nano fiber felt, namely the controllable temperature phase-change induction fiber. The controllable temperature phase-change induction fiber can induce absorption or discharge heat conversion function through a phase-change material when the temperature of an external environment changes, has two-way temperature phase-change induction adjustment and adaptability functions, and can be repeatedly used in a temperature oscillation environment.

Description

technical field [0001] The invention relates to a functional textile fiber material, in particular to a technology for obtaining a temperature-controllable phase-change induction fiber by electrospinning by using a silk fibroin / polyethylene glycol mixed solution as a spinning stock solution. Background technique [0002] Controllable temperature phase change sensing textile is a kind of textile material with temperature sensing and automatic adjustment function. When the external environment temperature changes, it can absorb or release heat through phase change material induction, and start to absorb or release heat. Actively and effectively control and adjust the body surface temperature of the human body to achieve the purpose of taking a comfortable effect. [0003] At present, textile products with the above functions are mainly prepared through the following technical approaches at home and abroad: (1) microcapsule coating method, which mixes microcapsules with adhesiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/16D01D1/02D01D1/06D01D5/00
Inventor 管新海左保齐
Owner SUZHOU UNIV
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