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Preparation method of energy conversion fiber

An energy conversion and fiber technology, applied in the field of textile fibers, can solve problems such as energy conservation and environmental protection, lower heat energy collection efficiency, narrow application range, etc., and achieve wide processing temperature range, sensitivity to environmental temperature changes, and good fluidity Effect

Active Publication Date: 2020-09-18
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wearable device made by this method needs to use an external power supply. Although the heat source is used reasonably, it consumes energy itself. At the same time, the wearable device described in this method has too many devices, which limits its application.
Finally, the wearable device described in this method needs to be attached to the skin as much as possible. If it is attached to the skin, it will have high requirements for its technology and needs to be considered in many aspects such as softness and breathability; if it is not attached to the skin, its heat collection efficiency will be greatly improved. reduce
[0007] To sum up, the existing energy-collecting devices have cumbersome installations, a narrow application range, and cannot fundamentally solve the problems of energy conservation and environmental protection.

Method used

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  • Preparation method of energy conversion fiber
  • Preparation method of energy conversion fiber
  • Preparation method of energy conversion fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A preparation method for energy conversion fibers, which comprises the steps of:

[0045] 1) Preparation of thermoplastic polymer / cellulose acetate butyrate masterbatch: take PA6 masterbatch (preferred PA6 masterbatch grade is 1013NW8) and cellulose acetate butyrate (CAB, preferably CAB grade) with a mass ratio of 20:80 381-0.5, its viscosity is small) mixed evenly, and then through twin-screw melt extrusion and pelletizer granulation to obtain the masterbatch of PA6 and CAB blending;

[0046] 2) Preparation of nanofibers with piezoelectric effect: Take the masterbatch of PA6 and CAB blended prepared in step 1), PA11 masterbatch with piezoelectric effect and barium titanate and place them in a drum oven for drying. The temperature of the fixed-drum oven is 100°C, and the drying is continued for 15 hours to remove the moisture in the masterbatch;

[0047] Take the dry PA6 and CAB blended masterbatch and put it in the twin-screw of the two-component composite spinning ma...

Embodiment 2

[0054] A preparation method for energy conversion fibers, which comprises the steps of:

[0055] 1) Preparation of thermoplastic polymer / cellulose acetate butyrate masterbatch: take PP masterbatch with a mass ratio of 30:70 (preferred PP masterbatch grade is HJ200) and cellulose acetate butyrate (CAB, preferably CAB grade 381-0.5, its viscosity is small) mixed evenly, and then through twin-screw melt extrusion and pelletizer granulation to obtain PP and CAB blended masterbatch;

[0056] 2) Preparation of nanofibers with piezoelectric effect: Take the masterbatch of PP and CAB blended prepared in step 1), PA11 masterbatch with piezoelectric effect and barium titanate and place them in a drum oven for drying. The temperature of the fixed-drum oven is 110°C, and the drying is continued for 17 hours to remove the moisture in the masterbatch;

[0057] Take the dry PP and CAB blended masterbatch and put it in the twin-screw of the two-component composite spinning machine as the ski...

Embodiment 3

[0062] A preparation method for energy conversion fibers, which comprises the steps of:

[0063] 1) Preparation of thermoplastic polymer / cellulose acetate butyrate masterbatch: take PET masterbatch (preferred PET masterbatch grade is LW-xg309) and cellulose acetate butyrate (CAB, preferably CAB) with a mass ratio of 25:75 The brand name is 381-0.5, its viscosity is small) and mixed evenly, and then the masterbatch of PET and CAB blending is obtained through twin-screw melt extrusion and pelletizer granulation;

[0064] 2) Preparation of nanofibers with piezoelectric effect: Take the masterbatch of PET and CAB blended and the PVDF masterbatch with piezoelectric effect prepared in step 1) and place them in a drum oven for drying, set the drum oven The temperature is 120°C, and it is dried continuously for 15 hours to remove the moisture in the masterbatch;

[0065] Take the dry masterbatch blended with PET and CAB and place it in the twin-screw of the two-component composite sp...

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Abstract

The invention relates to a preparation method of an energy conversion fiber and belongs to the technical field of textile fibers. The preparation method comprises the steps of 1) preparing thermoplastic polymer / cellulose acetate-butyrate master batch; 2) preparing a nano fiber having piezoelectric effect; 3) preparing the energy conversion fiber, to be specific, subjecting the thermoplastic polymer / cellulose acetate-butyrate master batch and piezoelectric masterbatch to melt spinning via a bi-component composite spinning machine to obtain a piezoelectric nano fiber having skin-core structure or orange-slice structure, and coating with a phase change material in subsequent twisting process to obtain the energy conversion fiber. The energy conversion fiber prepared herein has larger specificsurface area than common fibers and can output its various deformations into electrical signals, wider temperature response range is imparted to the fiber by coating with the phase change material, heat capture range is widened, and the energy conversion fiber can efficiently convert heat into electricity.

Description

technical field [0001] The invention relates to energy collection and conversion, and belongs to the technical field of textile fibers, in particular to a preparation method of energy conversion fibers. Background technique [0002] Energy issues have always been a hot topic for a long time. Now that energy conservation and environmental protection are vigorously advocated, how to use energy reasonably has become one of the most critical issues. At present, energy saving and environmental protection are only about controlling the use of energy, making efficient use of energy so that limited energy can be used for a longer period of time, but it has not fundamentally solved the problem of energy waste. Up to now, any machinery designed by humans is accompanied by energy loss during operation. The heat emitted by the machinery not only affects the normal operation of most machines, but also is lost in the air and cannot be recycled. In many fields, The energy lost due to heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/12D01F8/02D01F8/06D01F8/14D01F8/10D01F1/10D01D5/30D02G3/26D02G3/36
CPCD01D5/30D01F1/10D01F8/02D01F8/06D01F8/10D01F8/12D01F8/14D02G3/26D02G3/36
Inventor 王栋陈佳慧刘琼珍李沐芳赵青华梅涛贺晓伟孙灯明
Owner WUHAN TEXTILE UNIV
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