Preparation method of a wave-absorbing and radiation-proof composite textile material

A textile material and radiation protection technology, applied in shielding materials, textiles and papermaking, inorganic raw rayon, etc., can solve the problems of decreased textile performance of fabrics, difficult media loading, etc., to improve textile performance, reduce fiber spacing, The effect of increased ohmic loss

Inactive Publication Date: 2020-09-04
深圳市盛鸿医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The technical problem to be solved by the present invention: Aiming at the problem that it is extremely difficult to load a large amount of medium into the fabric in the prior art, and too much medium load on the fabric will inevitably lead to a decline in the textile performance of the fabric, a wave-absorbing and radiation-proof composite textile fabric is provided. Material preparation method

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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  • Preparation method of a wave-absorbing and radiation-proof composite textile material

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Experimental program
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Effect test

Embodiment 1

[0052] In parts by weight, weigh 40 parts of polydimethylsilane and 100 parts of xylene respectively, place polydimethylsilane in the reaction kettle, feed high-purity nitrogen protection at an air flow rate of 40mL / min, and The heating rate of ℃ / min is raised to 200 ℃, kept for 20 minutes, and cooled to normal temperature to obtain the primary product of polycarbosilane. Add the primary product of polycarbosilane to xylene and stir at 300 r / min for 20 minutes at room temperature to obtain a mixed solution. Put the mixed solution under the conditions of pressure 300KPa and temperature 340°C to distill under reduced pressure 2, cool to room temperature to obtain polycarbosilane, put polycarbosilane in a melt spinning machine, and pass nitrogen gas at a gas flow rate of 40mL / min Protected, extruded under the conditions of pressure 0.2MPa and temperature 240°C, cooled to room temperature to obtain polycarbosilane fiber precursors, and placed polycarbosilane fiber precursors in a v...

Embodiment 2

[0054]In parts by weight, weigh 45 parts of polydimethylsilane and 110 parts of xylene respectively, place polydimethylsilane in the reaction kettle, feed high-purity nitrogen protection at an air velocity of 560mL / min, and The heating rate of ℃ / min is raised to 200 ℃, kept for 30 minutes, and cooled to normal temperature to obtain the primary product of polycarbosilane. Add the primary product of polycarbosilane to xylene, stir at 350 r / min at normal temperature for 25 minutes, and obtain a mixed solution. Put the mixed solution under the conditions of pressure 350KPa and temperature 350°C to distill under reduced pressure 3, cool to room temperature to obtain polycarbosilane, put the polycarbosilane in a melt-spinning machine, and pass nitrogen gas at a gas flow rate of 45mL / min Protected, extruded under the conditions of pressure 0.3MPa and temperature 250°C, cooled to room temperature to obtain polycarbosilane fiber precursors, and placed polycarbosilane fiber precursors in...

Embodiment 3

[0056] In parts by weight, weigh 50 parts of polydimethylsilane and 120 parts of xylene respectively, place polydimethylsilane in the reaction kettle, feed high-purity nitrogen protection at an air flow rate of 60mL / min, and The heating rate of ℃ / min is raised to 200 ℃, kept for 40 minutes, and cooled to normal temperature to obtain the primary product of polycarbosilane. Add the primary product of polycarbosilane to xylene and stir at 400 r / min for 30 minutes at room temperature to obtain a mixed solution. Distill the mixed solution under the conditions of pressure 400KPa and temperature 360°C under reduced pressure 4, cool to room temperature to obtain polycarbosilane, place polycarbosilane in a melt spinning machine, and pass nitrogen gas at a flow rate of 50mL / min Protected, extruded under the conditions of pressure 0.4MPa and temperature 260°C, and cooled to room temperature to obtain polycarbosilane fiber precursors. Place polycarbosilane fiber precursors in a vertical no...

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 preparation method of a wave-absorbing radiation-proof composite textile material and belongs to the technical field of textile materials. According to the preparation method, the radiation-proof composite textile material is prepared by adding polyacrylonitrile-based carbon fibers and silicon carbide fibers, the polyacrylonitrile-based carbon fibers and the silicon carbide fibers both belong to structural wave-absorbing materials and are manufactured into structural parts bearing compression, bending and shearing loads, the silicon carbide fibers and the polyacrylonitrile-based carbon fibers are orthogonal to form a circuit simulation structure, the silicon carbide fiber and the carbon fibers which are orthogonally arranged form a planar conductive network, induction current is produced under the action of incident electromagnetic waves, electromagnetic wave energy is converted into heat energy through ohmic loss and eddy current loss so as to be lost, and the attenuation of the electromagnetic waves is enhanced. In addition, a wave-absorbing screen formed by orthogonally arranged silicon carbide fibers can play a role of a reflecting screen, the electromagnetic waves reflected from the surface of the wave-absorbing screen and the electromagnetic waves reflected from a polycrystal iron fiber reflecting layer can generate a phase cancellation effect,and the radiation-proof capacity of the wave-absorbing radiation-proof composite textile material is improved.

Description

technical field [0001] The invention relates to a preparation method of a wave-absorbing and radiation-proof composite textile material, which belongs to the technical field of textile materials. Background technique [0002] The development of electronic technology has led to the prosperity of the electronics industry, ranging from electric shavers, mobile phones, tablets, computers, TVs, etc., to cell phone towers, high-voltage power lines, satellite communications, telemetry and remote sensing, radar, etc., our daily life It is closely related to electronic equipment. However, electronic products and large electronic equipment produce a large amount of electromagnetic radiation of different wavelengths, flooding around us and causing electromagnetic pollution, which has brought a certain degree of harm to people's work and health. The harm of electromagnetic pollution is mainly manifested in two aspects. [0003] 1. Interfering with the normal operation of instruments: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/04D01F9/08D01F9/10H05K9/00
CPCD01F9/08D01F9/10D02G3/04D10B2101/12D10B2101/16D10B2101/20D10B2201/02H05K9/009
Inventor 陈桂川
Owner 深圳市盛鸿医疗科技有限公司
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