Breathable knitted spacer fabric friction generator and preparation method thereof

A technology of friction generators and spacer fabrics, applied in the direction of friction generators, etc., can solve the problems of friction generators such as general air permeability and tensile properties, achieve excellent physical and mechanical properties, increase effective contact area, and facilitate friction

Active Publication Date: 2019-03-26
HANGZHOU TIANYE JACQUARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tribogenerators prepared by the above method are all film or coating composite structures. The tribogenerators have general air permeability and tensile properties, and are not suitable for combining with clothing fabrics, and cannot be used to supply energy for wearable electronic products.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Breathable knitted spacer fabric friction generator and preparation method thereof
  • Breathable knitted spacer fabric friction generator and preparation method thereof
  • Breathable knitted spacer fabric friction generator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation method of the air-permeable knitted spacer fabric friction generator uses a computerized flat knitting machine to weave, and the weaving diagram is as follows figure 1 As shown, the 1st way is a group of veil, middle yarn and ground yarn to be looped on the front needle bed in the way of three-line plating, and the second way is another set of veil, middle yarn and ground yarn to be looped on the back needle in the way of three-line plating. The bed is formed into a loop, the 3rd and 4th way are the full-needle tuck of the spacer layer yarn, and the 4-way weaving forms a row of fabric, which is a cycle. The specific steps are as follows:

[0047] (1) A set of veil (made of insulating yarn, made of polyester fibers), intermediate yarn (made of conductive yarn, made of silver fibers) and ground yarn (made of triboelectric negative yarn) thread, which is made of polytetrafluoroethylene fibers) is formed into a loop on the front needle bed, and the left and ...

Embodiment 2

[0055] The preparation method of the breathable knitted spacer fabric friction generator uses a computerized flat knitting machine to weave, and the specific steps are as follows:

[0056] (1) A set of veil (made of insulating yarn, made of polyamide fibers), middle yarn (made of conductive yarn, made of copper fibers) and ground yarn (made of triboelectric negative yarn) , made of polytetrafluoroethylene fibers) is formed in the front needle bed, and the left and right positions and height positions of the guide holes are adjusted, so that the longitudinal angles of the lapping yarns, intermediate yarns and ground yarns of the lapping yarns are sequentially increased. The yarn behind the circle is exposed on the front of the fabric, the ground yarn is exposed on the reverse side of the fabric, and the intermediate yarn is located between the surface yarn and the ground yarn. Among them, the specific implementation method of adjusting the left and right positions and the height...

Embodiment 3

[0063] A method for preparing a breathable knitted spacer fabric friction generator, the specific steps are as follows:

[0064] (1) A set of veil (made of insulating yarn, made of polyamide fibers), intermediate yarn (made of conductive yarn, made of conductive fibers containing zinc oxide) and ground yarn (made of friction Electronegative yarn, gathered by polyvinyl chloride fiber) adopts the method identical with embodiment 2 to carry out knitting on front needle bed;

[0065] (2) Put another set of veil (the material is the same as step (1)), intermediate yarn (the material is the same as step (1)) and ground yarn (the material is triboelectric positive yarn, gathered by melamine fibers) Knitting is carried out on the rear needle bed, and the relationship and adjustment method of the longitudinal angle of the three yarn lap yarns are the same as those of the first group of yarns;

[0066] (3) Alternately tuck the spacer wires (the material is made of polypropylene fibers)...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a breathable knitted spacer fabric friction generator and a preparation method thereof. The method comprises the steps of weaving a top layer and a bottom layer by using a three-wire plating process, controlling the yarn angles of surface yarns, intermediate yarns and ground yarns respectively such that the three yarns are sequentially arranged according to a certain positional relationship and then are woven, at the same time, in the weaving process, performing alternate tucking of spacer wires between a top layer ground yarn and a bottom layer ground yarn with a certain number of spacing stitches to form the breathable knitted spacer fabric friction generator, wherein a top layer surface yarn and a bottom layer surface yarn are at the outmost sides of a compositelayer and are insulating yarns, a top layer intermediate yarn and a bottom layer intermediate yarn are conductive yarns, the top layer ground yarn and the bottom layer ground yarn are opposite and are a triboelectric negative yarn and a triboelectric positive yarn correspondingly, and a spacer layer is composed of a set of spacer wires that are simultaneously connected to the top layer ground yarn and bottom layer ground yarn. The preparation method of the invention has the advantages of simple process and high weaving efficiency, and the obtained knitted spacer fabric friction generator hasgood gas permeability and has excellent promotion value.

Description

technical field [0001] The invention belongs to the technical field of friction generators, and relates to a breathable knitted spacer fabric friction generator and a preparation method thereof. Background technique [0002] Triboelectric nanogenerator is a new type of energy technology, which can collect mechanical energy in daily life and convert it into electrical energy, effectively expanding the energy source of generators, and has become a research hotspot in recent years. Triboelectric nanogenerators can generate power at the microwatt level, which can provide energy for fine and small electronic devices. At the same time, their own size can be made very small, which can meet the needs of more portable and miniaturized smart electronic devices in the future. [0003] Document 1 (Zhang X S, Han M D, Wang R X, et al. Frequency-multiplication high-output triboelectric nanogenerator for sustainably powering biomedicalmicrosystems. [J]. Nano Letters, 2013, 13 (3): 1168.) d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N1/04
CPCH02N1/04
Inventor 刘燕平董珊珊
Owner HANGZHOU TIANYE JACQUARD
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