Heat-generating phase-change core-sheath fiber and preparation method thereof

A skin-core fiber and phase change technology, which is applied in fiber processing, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of no mention of fiber temperature regulation and temperature control function, poor heat absorption efficiency, etc., to improve comfort and The effect of ambient temperature adaptability

Inactive Publication Date: 2018-01-16
SINOPEC YIZHENG CHEM FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Chinese patent application "A light-absorbing and heat-generating functional fiber and its spinning process and fabric" (publication number CN104213242A) provides a light-absorbing and heat-generating functional fiber and its spinning process and fabric, which can solve the existing thermal insulation problems. Heat storage functional fibers or fabrics have poor heat absorption efficiency, and they do not need to be dyed after weaving, so as to achieve the purpose of energy saving and emission reduction
[0004] None of the above-mentioned functional fiber materials mentioned the temperature regulation and temperature control function of the fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: A method for preparing a heat-generating phase-change sheath-core fiber, comprising the following steps:

[0027] (1) Preparation of inorganic exothermic particle modified polymer fiber-forming polymer

[0028] It is prepared by mixing 99.9 kg of PET with 0.1 kg of zirconium carbide powder with a mesh size of 1000, drying them, and blending and granulating with twin-screws at 275°C.

[0029] (2) Preparation of the temperature-regulating material for the core layer:

[0030] With 0.1 kilogram of n-decane (alkane low molecular weight phase change material), 0.1 kilogram of NiFe 2 o 4 , 99.8 kilograms of PET were mixed uniformly and dried to prepare a core layer temperature-regulating material (or a core layer phase change material).

[0031] (3) Preparation of exothermic phase change sheath-core fiber:

[0032] Put 100 kg of the prepared inorganic heating particle modified polymer fiber-forming polymer and 100 kg of the core layer temperature-regulating ...

Embodiment 2

[0033] Embodiment 2: A method for preparing a heat-generating phase-change sheath-core fiber, comprising the following steps:

[0034] (1) Preparation of inorganic exothermic particle modified polymer fiber-forming polymer

[0035] 90 kg of PBT and 10 kg of 2000-mesh far-infrared ceramic powder were uniformly mixed and dried. Under the condition of 245° C., the fiber-forming polymer was prepared by twin-screw blending and granulation to obtain the inorganic heating particle modified polymer.

[0036] (2) Preparation of the temperature-regulating material for the core layer:

[0037] With 1 kilogram of n-eicosane (alkane low molecular weight phase change material), 1 kilogram of Fe 3 o 4 , 98 kilograms of PBT were mixed uniformly and dried to prepare the temperature-regulating material for the core layer.

[0038] (3) Preparation of exothermic phase change sheath-core fiber:

[0039] Put 60 kg of the prepared inorganic heat-generating particle-modified polymer fiber-forming...

Embodiment 3

[0040] Embodiment 3: A method for preparing a heat-generating phase-change sheath-core fiber, comprising the following steps:

[0041] (1) Preparation of inorganic exothermic particle modified polymer fiber-forming polymer

[0042] 80 kg of PA66 and 20 kg of silicon carbide powder with a mesh size of 3000 were mixed uniformly and dried. Under the condition of 250°C, they were blended and granulated by twin-screw to prepare inorganic exothermic particle modified polymer fiber-forming polymer (exothermic Powder modified polymer fiber-forming polymer).

[0043] (2) Preparation of the temperature-regulating material for the core layer:

[0044] With 10 kilograms of n-tetradecane (alkane low molecular weight phase change material), 2 kilograms of Fe 3 o 4, 88 kilograms of PTT were mixed uniformly and dried to prepare a core layer temperature-regulating material (or a core layer phase change material).

[0045] (3) Preparation of exothermic phase change sheath-core fiber:

[00...

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Abstract

The invention discloses a heat-generating phase-change core-sheath fiber and a preparation method thereof. Under infrared ray irradiation, the fiber sheath undergoes light-heat conversion to self-produce heat, in a low temperature environment, the converted heat can be transmitted to the fiber core layer to cause fiber core layer phase change so that a certain effect of automatic compensation of heat dissipated by the core layer is obtained, when the environment temperature is high, the core layer can absorb heat and form a liquid phase so that heat is stored, and when the environment temperature is low, the phase change material of the fiber core layer is changed from the liquid state into a solid state and releases heat so that intelligent temperature regulation is realized. The preparation method can prepare the novel fiber having a far infrared heating function and a core layer thermal insulation function. The fiber can be used for development of a novel fabric material in the fields of active heat-generating thermal insulation, temperature adjustment thermal insulation materials and smart clothing, satisfy multifunctional requirements on two-way temperature adjustment, activetemperature compensation, intelligent thermal conductivity and human health care of the novel fiber material and greatly improve the comfort and environmental temperature adaptability of the traditional clothing.

Description

technical field [0001] The invention relates to a sheath-core fiber, in particular to a heat-generating phase-change sheath-core fiber and a preparation method thereof. Background technique [0002] Chinese patent application "A light-absorbing and heat-generating functional fiber and its spinning process and fabric" (publication number CN104213242A) provides a light-absorbing and heat-generating functional fiber and its spinning process and fabric, which can solve the existing thermal insulation problems. Heat storage functional fibers or fabrics have poor heat absorption efficiency, and they do not need to be dyed after weaving, so as to achieve the purpose of energy saving and emission reduction. The technical solution is to dry and mix polyester chips of not less than 90 parts by weight, inorganic black particles of 1 to 10 parts by weight, and color masterbatches of 0 to 9 parts by weight, and melt Spun and processed into light-absorbing and heat-emitting functional fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/12D01F1/10D01D5/34
Inventor 史利梅张忠安王栋戴钧明赵青华刘传生周琼
Owner SINOPEC YIZHENG CHEM FIBER
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