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Kapok felt and carbon cloth composite non-woven felt, and needling reinforcing method and application thereof

A non-woven and kapok felt technology, which is applied in the field of non-woven fabric preparation, can solve problems such as interface deposition, decrease in overall strength, and affect evaporation effects, and achieve stable heat production, stable heat maintenance, and high-efficiency heat absorption.

Pending Publication Date: 2021-11-09
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The last is the composite method of two different materials. The common coating and bonding methods not only easily cause deposition on the interface, affect the evaporation effect, but also cause a decrease in the overall strength.

Method used

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  • Kapok felt and carbon cloth composite non-woven felt, and needling reinforcing method and application thereof
  • Kapok felt and carbon cloth composite non-woven felt, and needling reinforcing method and application thereof
  • Kapok felt and carbon cloth composite non-woven felt, and needling reinforcing method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a needle-punched reinforcement method for kapok felt and carbon cloth composite non-woven felt, which mainly includes the following steps:

[0034] 1. Material preparation: choose a gram weight of 100g / m 2 kapok felt, choose 250g / m 2 carbon cloth;

[0035] 2. Laying the net: use the above-mentioned kapok felt with a certain thickness as the base cloth, and spread the corresponding carbon cloth on the kapok felt;

[0036] 3. Reinforcement: Acupuncture the composite laminated kapok felt and carbon cloth; the needles pass through the carbon cloth and the kapok felt in turn from the side of the carbon cloth. The needling depth is 6 mm, and the needling density is 200 pricks cm -2 .

Embodiment 2

[0038] This embodiment also provides a needle-punched reinforcement method for kapok felt and carbon cloth composite non-woven felt, which mainly includes the following steps:

[0039] 1. Material preparation: choose a gram weight of 100g / cm 2 kapok felt, choose 250g / cm 2 carbon cloth;

[0040] 2. Gluing: Epoxy resin adhesive is applied on the contact surface side of kapok felt and carbon cloth, and the amount of glue applied is 10g / m 2 ;

[0041] 3. Pressure application: paste a layer of kapok felt and carbon cloth together, press the kapok felt and carbon cloth under the condition of unit pressure 1.2MPa, the pressing time is 2h, and release the pressure directly after pressing.

[0042] Obtain the tensile (horizontal, longitudinal) of finished product in embodiment 1, embodiment 2 and burst mechanics test data such as figure 2 Shown, the water evaporation rate (light intensity is 1kW.m -2 ) under the conditions of the test results are shown in Table 1:

[0043] Table...

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Abstract

The invention provides a kapok felt and carbon cloth composite non-woven felt, and a needling reinforcement method and application thereof, and belongs to the technical field of non-woven fabric preparation. According to the technical scheme, the kapok felt and carbon cloth composite non-woven felt is formed by needling or bonding two layers of different base cloth including the kapok felt and the carbon cloth through a bonding agent. The needling reinforcement method comprises the following steps: step 1, thickness configuration; step 2, lapping; and step 3, needling; or the method comprises the following steps of thickness configuration, glue application and pressure application. The kapok felt made of kapok fibers with the characteristics of light weight, hollowness, environmental friendliness and the like is selected as the lower thermal insulation layer, and the carbon cloth with the spectral absorption capacity almost covering the broadband from visible light to infrared light is used as the surface layer to serve as the upper photothermal conversion layer, so that efficient absorption and heat production of sunlight are realized; and continuous evaporation of seawater is realized, so that the purpose of desalination is achieved.

Description

technical field [0001] The invention relates to the technical field of non-woven fabric preparation, in particular to a kapok felt, a carbon cloth composite non-woven felt, and a needle-punched reinforcement method and application. Background technique [0002] In the era of rapid economic and technological development, water pollution is becoming more and more serious, and the shortage of water resources is already a very serious problem at present. For now, desalination of seawater is an effective way to solve the shortage of water resources in many arid areas in China, such as coastal areas and Northwest China. The traditional seawater desalination technology appeared relatively early, and after years of development, it has become relatively mature in industry. [0003] In the past few years, a composite structure consisting of an upper light-to-heat conversion layer and a lower thermal insulation layer has been developed. This design enables the top photothermal layer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B9/02B32B9/04B32B5/06B32B7/12B32B37/10B32B37/12B32B38/00D04H1/4242D04H1/4266D04H1/48D04H17/00C02F1/14C02F103/08
CPCB32B5/02B32B5/26B32B5/06B32B7/12B32B37/10B32B37/1284B32B38/00D04H17/00D04H1/48D04H1/4266D04H1/4242C02F1/14B32B2262/062B32B2262/106B32B2307/30D10B2201/01D10B2101/12D10B2401/20C02F2103/08Y02A20/212Y02A20/124Y02A20/142
Inventor 戴家木聂渡刘蓉张广宇臧传锋李素英张伟张瑜张宇
Owner NANTONG UNIVERSITY
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