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Preparation method of phase-change temperature-adjusting heating fibers

A heating fiber and temperature regulation technology, which is applied in the field of the preparation of phase change temperature regulation heating fibers, can solve the problems of limited effect and weak effect, and achieve the effect of easy peeling and good adhesion stability.

Inactive Publication Date: 2021-09-28
吉祥三宝高科纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although both the phase-change temperature-regulating fiber and the far-infrared fiber have a heating function, the effect is limited, especially in a low-temperature environment.

Method used

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  • Preparation method of phase-change temperature-adjusting heating fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Heat polyethylene glycol 4000 to 90°C for vacuum dehydration, add toluene diisocyanate and stannous octoate after dehydration, the molar ratio of polyethylene glycol 4000 and diisocyanate is 1:1.2, heat to 75°C and keep warm React for 5h to obtain polyurethane prepolymer.

[0031] (2) 1 part of far-infrared ceramic powder is mixed with 5 parts of 30% hydrogen peroxide solution, and far-infrared ceramic powder is made up of nano-alumina, nano-silicon dioxide, nano-titanium dioxide, and the mass ratio is 5:3:1, heated to Stir at 80° C. for 3 hours to hydroxylate the surface of the nano-inorganic powder, filter with suction, wash with water, dry, and pulverize to obtain far-infrared ceramic powder with hydroxylated surface.

[0032] (3) Add 2 parts of heated and melted 35# paraffin dropwise to 5 parts of polyurethane prepolymer under stirring, continue to stir for 1 hour after the addition, and then add 1 part of surface hydroxylated far-infrared ceramic powder and oct...

Embodiment 2

[0036] (1) Heat polyethylene glycol 4000 to 90°C for vacuum dehydration, add isophorone diisocyanate and dibutyltin dilaurate after dehydration, the molar ratio of polyethylene glycol 4000 and diisocyanate is 1:1.5, Heat to 75°C and keep it warm for 5h to obtain a polyurethane prepolymer.

[0037] (2) 1 part of far-infrared ceramic powder is mixed with 6 parts of 30% hydrogen peroxide solution, the far-infrared ceramic powder is made up of nano-alumina, nano-silicon dioxide, nano-titanium dioxide, the mass ratio is 8:3:2, heated to Stir at 80° C. for 3 hours to hydroxylate the surface of the nano-inorganic powder, filter with suction, wash with water, dry, and pulverize to obtain far-infrared ceramic powder with hydroxylated surface.

[0038] (3) Add 3 parts of heated and melted lauric acid dropwise to 8 parts of polyurethane prepolymer under stirring, continue stirring for 30 minutes after the addition is complete, then add 2 parts of surface hydroxylated far-infrared ceramic...

Embodiment 3

[0042] (1) Heat polyethylene glycol 4000 to 90°C for vacuum dehydration, add diphenylmethane diisocyanate and bismuth isooctanoate after dehydration, the molar ratio of polyethylene glycol 4000 and diisocyanate is 1:1.8, and heat to Insulated at 75°C for 5 hours to obtain a polyurethane prepolymer.

[0043] (2) 1 part of far-infrared ceramic powder is mixed with 8 parts of 30% hydrogen peroxide solution, and far-infrared ceramic powder is made up of nano-alumina, nano-silicon dioxide, nano-titanium dioxide, and the mass ratio is 10:4:2, heated to Stir at 80° C. for 2 hours to hydroxylate the surface of the nano-inorganic powder, suction filter, wash with water, dry, and pulverize to obtain far-infrared ceramic powder with surface hydroxylation.

[0044] (3) Add 4 parts of heated and melted octadecane dropwise to 10 parts of polyurethane prepolymer under stirring, continue stirring for 30 minutes after the addition, and then add 2 parts of surface hydroxylated far-infrared cera...

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Abstract

The invention discloses a preparation method of phase-change temperature-adjusting heating fibers. The preparation method comprises the steps that functional microcapsules are prepared firstly and then are added into polyacrylonitrile to prepare the phase-change temperature-adjusting heating fibers, wherein the prepared functional microcapsules are of a three-layer structure, the inner layer is a phase-change material, the middle layer is polyurethane, the outer layer is the far-infrared ceramic powder, and have dual functions of phase-change temperature regulation and far-infrared heat storage; and the polyurethane and the far-infrared ceramic powder are connected through chemical bonds, so that the adhesion stability of the far-infrared ceramic powder is good, and the problem of easy stripping existing in conventional physical addition is solved.

Description

Technical field: [0001] The invention relates to the technical field of heating fibers, in particular to a preparation method of phase-change temperature-regulating heating fibers. Background technique: [0002] Heating fibers include hygroscopic heating fibers, light energy heating fibers, phase change materials, chemical exothermic materials and electric energy heating materials, which are active heat generating heat preservation materials. [0003] Phase-change temperature-regulating fiber is a kind of heat-storing and temperature-regulating functional fiber developed by utilizing the characteristics of releasing or absorbing latent heat and maintaining temperature during the phase change of substances. When the ambient temperature or human skin temperature reaches the melting point of the phase change material in the clothing, the phase change material absorbs heat and simultaneously changes from solid to liquid, thereby producing a short-term cooling effect on the inner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/54D01F1/10B01J13/04
CPCD01F6/54D01F1/10B01J13/043
Inventor 张志成张丽马晓飞
Owner 吉祥三宝高科纺织有限公司
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