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Conductive elastic non-woven material and preparation method thereof

A technology of non-woven materials and conductive coatings, which is applied in the manufacture of non-woven fabrics, conductive/antistatic filaments, textiles and paper, and can solve the problems of thick heating fabrics, poor wearing comfort, and fast production speed, and achieve excellent performance Flexible, non-irritating liquid retention rate, and convenient operation

Pending Publication Date: 2022-05-13
苏州多瑈新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the technical problems of thick heating fabric, complex structure, low softness and poor wearing comfort, the present invention proposes a conductive elastic nonwoven material and a preparation method thereof. The obtained conductive elastic nonwoven material has good elasticity and high conductivity. controllable, soft and comfortable, and the preparation method has the characteristics of short process flow, fast production speed and low cost, and is suitable for large-scale industrial production

Method used

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  • Conductive elastic non-woven material and preparation method thereof
  • Conductive elastic non-woven material and preparation method thereof
  • Conductive elastic non-woven material and preparation method thereof

Examples

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preparation example Construction

[0055] Preparation process of microfiber aggregates such as Figure 4 As shown, the polyolefin elastomer section and carbon nanotubes are mixed and added to the feed funnel 4-1, the polyolefin elastomer section is preheated and melted by the screw extruder 4-2 to form a polymer solution 4-3 into the spinning box 4-4, and the microfiber 4-5 is formed after stretching by the spinter head, and the microfiber 4-5 is deposited on the net curtain 4-7 by using the vacuum suction system 4-6 to obtain a microfiber aggregate;

[0056] Microfiber aggregates and conductive coating composite processes such as Figure 5 As shown, the microfiber aggregate 5-1 is placed in a container 5-2 filled with a conductive solution, when the mixed solution composed of graphene dispersion 5-3, aqueous polyurethane 5-4, water 5-5 and wetting agent 5-6 is completely immersed in the pores of the microfiber aggregate 5-1, the pressure roller 5-8 is used for pressure, the excess solution on the surface of the mate...

Embodiment 1

[0058] The preparation method of conductive elastic nonwoven material, the steps are as follows:

[0059] Preparation of microfiber aggregates: Polyolefin elastomer slices and carbon nanotubes are mixed uniformly by weight ratio of 7:3 and then formed by melt spinning process with a diameter of 10-14um, porosity of 70%-80%, and a isal density of 75-85g / m 2 A collection of microfibers. The polyolefin elastomer model is 7050FL, the ethylene composition is about 13%, the melt index (190 ° C / 2.16 kg) is 10-30g / 10min, the melt flow rate (230 ° C / 2.16kg) is 30-50g / 10min; the multi-walled carbon nanotube resistivity is 0.2-0.3Ω · cm. Set the specific meltblown process parameters as follows: metering pump temperature 200 °C, meltblown die temperature 250 °C, screw extruder temperature (zone 1 - zone 4): 200 °C, 230 °C, 250 °C, 250 °C; metering pump speed of 5Hz, receiving distance of 15cm;

[0060]Preparation of conductive coatings: Graphene dispersion, waterborne polyurethane, w...

Embodiment 2

[0064] The preparation method of the conductive elastic nonwoven material, the difference from Example 1 is that the weight ratio of the polyolefin elastomer slice and carbon nanotubes in the preparation of the microfiber aggregate is 5:5, and the ish density of the conductive elastic nonwoven material is 80g / m 2 。

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Abstract

The invention provides a conductive elastic non-woven material and a preparation method thereof, which are used for solving the technical problems of poor heating performance, complex preparation process, low softness and poor wearing comfort of heating fabrics, the conductive elastic non-woven material comprises a porous membrane and a superfine fiber aggregate, the porous membrane and the superfine fiber aggregate are embedded with each other, the superfine fiber aggregate comprises micro-nano conductive whiskers and a polyolefin elastomer, the porous membrane is prepared by drying a conductive coating, and the conductive coating comprises a graphene dispersion liquid, waterborne polyurethane, a wetting agent and water. The conductive elastic non-woven material prepared by the invention not only has excellent thinness, softness, elasticity and elasticity, but also has controllable conductivity; the heating device is applicable to multiple fields such as intelligent wearable, medical treatment and public health and industry, and is also applicable to intelligent heating; meanwhile, the preparation method has the characteristics of short process flow, high production speed and low cost, and is suitable for large-scale industrial production.

Description

Technical field [0001] The present invention belongs to the field of fiber materials, relates to a superfine fiber elastic conductive material, particularly to a conductive elastic nonwoven material and a preparation method thereof. Background [0002] As a kind of intelligent wearable clothing, heating fabric can resist cold through external power supply heat production, which requires both heating fabrics to have the advantages of good heating, and at the same time need to take into account the performance of taking, so that people wear soft and comfortable, with light, thin and soft characteristics. The existing heating fabrics are mainly divided into two categories: [0003] (1) Passive heat production and warm insulation fabric, also known as passive heat production, through the thermal insulation performance of the fabric itself or can increase the static air content or heat insulation layer to achieve heat transfer to increase the thermal performance. Most of the traditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M11/74D06M15/53D04H1/4291D04H1/56D04H1/4382D01F6/46D01F1/09D06M101/20
CPCD06M15/564D06M11/74D06M15/53D04H1/4291D04H1/56D04H1/43838D01F6/46D01F1/09D06M2101/20
Inventor 宋卫民张恒史建宏许秋歌赵朋举宋敬甄琪
Owner 苏州多瑈新材料科技有限公司
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