Three-dimensional spacer structure electrothermal composite material and preparation method thereof

A composite material and electric heating technology, which is applied in the direction of textile, fabric, textile and paper making, can solve the problems of low thermal energy conversion efficiency, poor mechanical properties, non-humidity resistance, etc., and achieve the effect of improving heating efficiency, light weight and fast heating speed

Inactive Publication Date: 2018-06-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can provide heating to a certain extent, it has the disadvantages of low thermal energy conversion efficiency, poor mechanical properties, no moisture resistance, and easy delamination.

Method used

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  • Three-dimensional spacer structure electrothermal composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A three-dimensional interval structure electric heating fabric based on copper wire and its preparation method:

[0032] 1. Yarn selection

[0033] Select the basalt fiber of 800tex (Shijin Basalt Fiber Co., Ltd.) as the warp yarn 4 of the electric heating layer; select the copper tow with a diameter of 1 mm as the weft yarn 5 of the electric heating layer; select the basalt fiber of 1000tex as the warp yarn 6 of the support layer and the weft yarn 7 of the support layer; Select 1000tex glass fiber as the spacer yarn 8; adopt the three-dimensional weaving process, set the width of the fabric to 10 cm; warp and weft density: 5 threads / cm; density of the spacer thread 8: 5 threads / cm.

[0034] 2. Weaving process

[0035] The first step: arrange each layer of warp yarns and spacer yarns 8 according to the yarn selection scheme;

[0036] The second step: synchronously introduce each layer of weft yarn;

[0037] The third step: each layer of warp interweaves;

[0038] St...

Embodiment 2

[0043] A three-dimensional spacer structure electrothermal composite material based on copper wire and its preparation method:

[0044] The electrothermal fabric with three-dimensional spacer structure obtained in Example 1 was used to compound it with epoxy resin to prepare a three-dimensional spacer structure electrothermal composite material based on copper wire.

[0045] Epoxy resin (Guangzhou Hengyue Chemical Co., Ltd., brand: E-51) and curing agent are made into 1000 ml of epoxy resin solution according to the volume ratio of 4:1; After welding, use the hand lay-up process to compound the fabric with epoxy resin, put it in an oven, adjust the temperature to 45°C and dry it for 4 hours; then raise the temperature to 70°C and dry it for 4 hours.

[0046] The obtained copper wire-based three-dimensional space-filling structure electrothermal composite material has a length of 20 cm and a thickness of 0.7 cm. The electrothermal composite material has a density of 1.1kg / cm ...

Embodiment 3

[0048] A three-dimensional spacer structure electric heating fabric based on glass fiber wrapped copper wire and its preparation method:

[0049] 1. Yarn selection

[0050] Choose 1000tex non-alkali glass fiber (Jushi Group) as the heating layer warp yarn 4; choose 300tex glass fiber wrapped copper stranded wire with a diameter of 1 mm as the heating layer weft yarn 5, wrapping parameters: feeding speed ratio 1.5:1; choose 1000tex glass fiber bulked yarn is used as support layer warp yarn 6, support layer weft yarn 7 and spacer yarn 8; adopt three-dimensional weaving weaving process, set the width of the fabric to 10 cm; warp and weft density: 5 pieces / cm; density of spacer yarn 8: 5 roots / cm.

[0051] 2. Weaving process

[0052] The first step: arrange each layer of warp yarns and spacer yarns 8 according to the yarn selection scheme;

[0053] The second step: synchronously introduce each layer of weft yarn;

[0054] The third step: each layer of warp interweaves;

[005...

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Abstract

The invention discloses a three-dimensional spacer fabric structure electrothermal composite material and a preparation method thereof. The composite material comprises an electrothermal layer and a supporting layer, and the electrothermal layer and the supporting layer are bound as a whole by spacer yarns, so that a hollow heat insulation layer is formed between the electrothermal layer and the supporting layer, the electrothermal layer is composed of electrothermal layer warps and electrothermal layer wefts, and the supporting layer is composed of supporting layer warps and supporting layerwefts. The preparation method comprises the steps that each layer of the warps and spacer yarns are arranged according to a yarn selection scheme; each layer of the warps is synchronously introduced;all the layers of warps are interwoven with one another: spacer sheets are inserted between the electrothermal layer and the supporting layer, and the spacer yarns are interwoven with one another to weave each layer of the yarns as a whole; taking up of a stepping motor is conducted; the material is taken down from a machine after needed weaving circulations are completed. The material has the advantages of being simple in structure, light in weight, good in comprehensive structural performance, moisture resistant and aging resistant, impact resisting and the like, and the material is extensively applied in the domestic and military fields.

Description

technical field [0001] The invention relates to a three-dimensional interval structure electrothermal composite material and a preparation method thereof, belonging to the technical field of composite materials. Background technique [0002] With the continuous improvement of people's living standards, the requirements for the living environment have not only to meet the basic living conditions, but also to create a comfortable and comfortable living environment, put forward higher requirements for the indoor environment, and require the indoor environment to meet the temperature, Humidity, indoor wind speed, pollutant concentration, etc. are required to be controlled within a certain range. Based on the regulation of indoor temperature, especially the problem of indoor heat preservation in winter, electric heating products develop rapidly and gradually appear in people's daily life. The electric heating that appears on the market mainly includes: electric heaters, electric ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D25/00D03D1/00D03D15/00D03D15/242D03D15/25D03D15/267D03D15/275D03D15/283D03D15/47D03D15/533
CPCD03D1/00D03D15/00D03D25/005D10B2101/06D10B2101/20D10B2331/021D03D15/533
Inventor 许福军薛有松张昆葛东升
Owner DONGHUA UNIV
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