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Title:
ULTRAFINE FIBER COMPOSITE WAVE-ABSORBING MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/153828
Kind Code:
A1
Abstract:
An ultrafine fiber composite wave-absorbing material, comprising an ultrafine wave-absorbing non-woven fabric layer, an impregnation layer and a coating layer. The impregnation layer is provided on the ultrafine wave-absorbing non-woven fabric layer, and the coating layer is provided on the impregnation layer. The ultrafine wave-absorbing non-woven fabric layer has a three-dimensional cross-linking structure formed by means of mixed melt spinning and needle punching of nylon-6, multi-walled carbon nanotube and polyethylene. The impregnation layer comprises: a polyurethane resin, together with dimethylformamide, a cell regulator, a conductive acetylene carbon black and a flame retardant. The coating solution comprises a polyurethane resin, dimethylformamide, a cell regulator, a coagulation regulating aid, an iron silicon aluminum powder, and a flame retardant. The coating solution is finely ground and dispersed by means of a nano-sand mill, and the absorbent iron silicon aluminum powder is dispersed uniformly in the coating solution, so that the cells in the formed wave-absorbing coating layer are dense and uniform, and thus the wave-absorbing effect at low frequency of a product can be improved, thereby improving the wave-absorbing performance at low frequency of the product after coating of the wave-absorbing coating solution.

Inventors:
XIA, Gangfeng, (YIN Na, 807Huang Qiao Industrial Park Tongzhan East Road 15-5, Taixin, Taizhou Jiangsu 0, 225400, CN)
Application Number:
CN2018/116462
Publication Date:
August 15, 2019
Filing Date:
November 20, 2018
Export Citation:
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Assignee:
JIANGSU YANGZI XINFU SHIPBUILDING CO., LTD (YIN Na, 807Huang Qiao Industrial Park Tongzhan East Road 15-5, Taixin, Taizhou Jiangsu 0, 225400, CN)
International Classes:
D06N3/14; D04H1/4382; D04H1/46; D06N3/00
Foreign References:
CN105714553A2016-06-29
CN101407975A2009-04-15
CN205368865U2016-07-06
CN106436340A2017-02-22
CN108166271A2018-06-15
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