A novel preparation of silver-plated polyacrylonitrile fibers functionalized with antibacterial and electromagnetic shielding properties

2015 ◽  
Vol 342 ◽  
pp. 120-126 ◽  
Author(s):  
Wei Wang ◽  
Weiya Li ◽  
Cuicui Gao ◽  
Weicheng Tian ◽  
Bin Sun ◽  
...  
Keyword(s):  
Electromagnetic Shielding ◽  
Shielding Properties

Study on properties of electromagnetic shielding yarns and fabrics

2020 ◽  
Vol 32 (5) ◽  
pp. 677-690
Author(s):  
Xinjin Liu ◽  
Xinxin Yan ◽  
Xuzhong Su ◽  
Juan Song
Keyword(s):  
Stainless Steel ◽  
Continuous Distribution ◽  
Noise Pollution ◽  
Short Fiber ◽  
Electromagnetic Shielding ◽  
Content Type ◽  
The Core ◽  
Spun Yarn ◽  
Spun Yarns ◽  
Shielding Properties

PurposeWith the popularization of electronic products, the electromagnetic radiation pollution has been the fourth largest pollution after water, air and noise pollution. Therefore, electromagnetic shielding property of textiles is attracting more attention. In this paper, the properties of electromagnetic shielding yarns and fabrics were studied.Design/methodology/approachTen kinds of yarn, stainless steel short fiber and polyester blend yarn with three different blending ratios T/S 90/10, T/S 80/20 and T/S 70/30, stainless steel short fiber, polyester and cotton blend yarn with blending ratio C/T/S 35/35/30, core-spun yarn with one 30 um stainless steel filament C/T28tex/S(30 um), core-spun yarn with two 15 um stainless steel filaments (C/T28tex/S(15 um)/S(15 um)), twin-core-spun yarn with one 30 um stainless steel filament and one 50D spandex filament C/T28tex/S(30 um)/SP(50D), sirofil wrapped yarn with one 30 um stainless steel filament feeding from left S(30 um)+C/T28tex, sirofil wrapped yarn with one 30 um stainless steel filament feeding from right C/T28tex+S(30 um), sirofil wrapped yarn with two 15 um stainless steel filaments feeding from two sides S(15 um)+C/T28tex+ S(15 um), were spun. The qualities of spun yarns were measured. Then, for analyzing the electromagnetic shielding properties of fabrics made of different spun yarns, 20 kinds of fabrics were woven.FindingsThe tested results show that comparing to the T/S 80/20 blend yarn, the resistivity of composite yarns with the same ratio of the stainless steel filament is smaller. The possible reason is that comparing to the stainless steel short fiber, the conductivity of stainless steel filament is better because of the continuous distribution of stainless steel in the filament. Comparing with the core-spun yarn, the conductivity of the sirofil wrapped yarn is a little better. Comparing to the fabric woven by the blend yarn, the electromagnetic shielding of the fabric woven by the composite yarn is better, and comparing to the fabric woven by the core-spun yarn, the electromagnetic shielding of the fabric woven by the sirofil yarn is a little better. The possible reason is that the conduction network can be produced by the stainless steel filament wrapped on the staple fiber yarn surface in the fabric, and the electromagnetic wave can be transmitted in the network.Originality/valueIn this paper, the properties of electromagnetic shielding yarns and fabrics were studied. Ten kinds of yarn, including three stainless steel short fiber and polyester blend yarns, one stainless steel short fiber, polyester and cotton blend yarn, two core-spun yarns, one twin-core-spun yarn, three sirofil wrapped yarn, were spun. Then, for analyzing the electromagnetic shielding properties of fabrics made of different spun yarns, 20 kinds of fabrics were woven. The effects of fabric warp and weft densities, fabric structures, yarn kinds, yarn distributions in the fabric on electromagnetic shielding were analyzed.

Electrical, dielectric, and electromagnetic shielding properties of polypropylene-graphite composites

2010 ◽  
Vol 115 (3) ◽  
pp. 1306-1314 ◽  
Author(s):  
Varij Panwar ◽  
Jong-Oh Park ◽  
Suk-Ho Park ◽  
Sanjeev Kumar ◽  
R. M. Mehra
Keyword(s):  
Electromagnetic Shielding ◽  
Shielding Properties ◽  
Graphite Composites

scholarly journals Flexible PEBAX/graphene electromagnetic shielding composite films with a negative pressure effect of resistance for pressure sensors applications

RSC Advances ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 1535-1543 ◽  
Author(s):  
Biao Zhao ◽  
Xi Zhang ◽  
Jiushuai Deng ◽  
Chun Zhang ◽  
Yang Li ◽  
...  
Keyword(s):  
Negative Pressure ◽  
High Efficiency ◽  
Pressure Effect ◽  
Composite Films ◽  
Pressure Sensors ◽  
Electromagnetic Shielding ◽  
Good Sensitivity ◽  
Emi Shielding ◽  
Shielding Properties

Graphene/PEBAX composite films present high-efficiency EMI shielding properties and good sensitivity as well as sensing stability.

Effect of carbon fiber addition on the electromagnetic shielding properties of carbon fiber/polyacrylamide/wood based fiberboards

2018 ◽  
Vol 29 (19) ◽  
pp. 195605 ◽  
Author(s):  
Baokang Dang ◽  
Yipeng Chen ◽  
Ning Yang ◽  
Bo Chen ◽  
Qingfeng Sun
Keyword(s):  
Carbon Fiber ◽  
Electromagnetic Shielding ◽  
Shielding Properties ◽  
Fiber Addition
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