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Gel-cotton composite material for cooling clothes suitable for tunnel construction and preparation method of gel-cotton composite material

A technology for tunnel construction and composite materials, applied in plant fibers, fiber processing, textiles and papermaking, etc., can solve the problems of solution exudation, environmental pollution, uneven dispersion of gel for cooling clothing, etc., to reduce discomfort and low prices. , the effect of reducing the probability of discomfort symptoms

Pending Publication Date: 2022-06-24
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used gel-cotton composite material for cooling clothing, the gel for cooling clothing is not uniformly dispersed, the solution seeps out, and pollutes the environment

Method used

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  • Gel-cotton composite material for cooling clothes suitable for tunnel construction and preparation method of gel-cotton composite material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] Using the preparation method of the present invention, in the system, the polysilicon network can be connected with the polymer network through entanglement and intermolecular hydrogen bonds (carboxyl group-water molecule-silicic acid). Finally, an inorganic / organic double network interpenetrating network gel system was formed, which enhanced the strength, elasticity and water retention of the high toughness P(AA-co-AM) / WG gel system.

[0041] Step 9, drying the polymer-dispersed cotton in the step 8 to obtain a gel-cotton composite material for cooling clothing.

specific Embodiment

[0043]

[0044]The gel-cotton composite materials prepared in each example are made into clothes, and the construction workers put the cotton on the body through thin clothes. Because cotton is used as the base material, it is lighter and more comfortable. The prepared gel has the effect of absorbing sweat and keeping it in the cotton.

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PUM

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Abstract

The invention discloses a gel-cotton composite material for cooling clothes suitable for tunnel construction. The gel-cotton composite material is prepared from the following components in parts by weight: 5 to 40 parts of cotton, 5 to 25 parts of hydrophilic polymer, 8 to 40 parts of water-soluble monomer, 0.01 to 2 parts of initiator, 0.2 to 3 parts of cross-linking agent and 10 to 20 parts of liquid sodium silicate, the hydrophilic polymer is one of polyvinyl alcohol and polyethylene glycol; the water-soluble monomer is one of sodium acrylate, acrylic acid and acrylamide; the initiator is one of potassium persulfate, ammonium persulfate, dibenzoyl peroxide and benzophenone; the cross-linking agent is one of N, N '-methylene bisacrylamide, di (ethylene glycol) divinyl ether, di (ethyl glycol) diacrylate and sodium bicarbonate. The composite material has the advantages of good comfort, light weight and capability of quickly absorbing sweat of a worker after the worker wears the composite material in a tunnel, and the gel is uniformly dispersed.

Description

technical field [0001] The invention belongs to the technical field of cooling materials, and particularly relates to a gel-cotton composite material for cooling clothing suitable for tunnel construction and a preparation method. Background technique [0002] Geothermal hazards occur to varying degrees when building deep and long tunnels, most of which are built in relatively hard rocks, such as limestone, argillaceous limestone, sandstone, sandstone intercalated with shale, granite, Gneiss, migmatite, quartzite, slate, etc. Due to the existence of the geothermal gradient, for all kinds of hard and dense rocks, due to the low thermal conductivity and poor heat transfer performance, thermal energy is easy to accumulate in the rock mass. Hot tunnels in various places have encountered different degrees of harm during the construction process. When the ground temperature exceeds 38°C, personnel and mechanical equipment are basically unable to work in the tunnel. At this time, c...

Claims

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Application Information

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IPC IPC(8): D06M15/263D06M15/285D06M15/333D06M15/53D06M101/06
CPCD06M15/333D06M15/53D06M15/263D06M15/285D06M2101/06
Inventor 高广义王卓罗占夫任晓锋贾建波张俊吴元金皮乾勇徐启鹏王栋翟康博谷晴天
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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