Effect of Plasma Pre-treatment on the Conductivity of Polypyrrole-coated Cotton Fabric

2019 ◽  
Vol 20 (10) ◽  
pp. 2114-2119 ◽  
Author(s):  
Priyadarshini Rajasekaran ◽  
Bagavathi Muthuraman
2018 ◽  
Vol 199 ◽  
pp. 390-396 ◽  
Author(s):  
Quan-Yong Cheng ◽  
Cheng-Shu Guan ◽  
Meng Wang ◽  
Yi-Dong Li ◽  
Jian-Bing Zeng

2014 ◽  
Vol 915-916 ◽  
pp. 871-874 ◽  
Author(s):  
Xian Ping Zeng ◽  
Jin Fa Liu

In this paper, the hemp / cotton / polyester mesh knitted fabric (Han / C / T) is treated by alkali treatment, conventional dyeing and alkali pre-treatment dyeing. We have obtained the conclusion that alkali treatment improves the dyeing effect. Alkali pre-treatment dyeing was done after alkali treatment. The fabric dyeing effect is improved obviously. The optimum process come from orthogonal experiment (dyes 2.5% owf, Na2SO4 :30g/L, Na2CO3:10g/L, liquor ratio (1:50) and 90°C×50 min). Through this optimum process, dyeing effect for hemp / cotton / polyester mesh knitted fabric is close to the pure cotton fabric dyeing effect.


Cellulose ◽  
2018 ◽  
Vol 25 (12) ◽  
pp. 7393-7407 ◽  
Author(s):  
Mohamad M. Ayad ◽  
Wael A. Amer ◽  
Sawsan Zaghlol ◽  
Nela Maráková ◽  
Jaroslav Stejskal

2012 ◽  
Vol 441 ◽  
pp. 57-60
Author(s):  
Xia Zhu ◽  
Qing Tao Meng

t is pre-mordant dyeing. Dyeing property of Carmine, gardenia yellow and sodium copper chlorophyll on cotton fabrics which were pre-treated by metal mordant (FeSO4AlCl3 and ZnCl2 ) was studied. The reasonable pre-treatment was determined by comparing the color depth (K/S value) of dyed samples. And then, the dyed samples were treated with no-iron finishing resin 931-33 to fix the color. The result shows that the color depth of cotton fabric is greatly improved after determined pre-treatment, and the washing fastness is improved after color fixing.


2021 ◽  
Author(s):  
Xinhua Liu ◽  
Hailong Liu ◽  
Yinchun Fang

Abstract In this study, intumescent flame retardant coating of polyethylenimine/phytic acid (PEI/PA) with gradient structure was constructed on cotton fabric through facile layer-by-layer (LBL) assembly method. The LOI value of coated cotton fabric reached over 40% indicating excellent flame retardancy. Reasonable controlling the LBL assembly process of PEI/PA coating brought less influence to the physical properties of cotton fabrics. And the coated cotton fabric revealed good flame retardant washing durability. Thermogravimetric analysis results of coated cotton fabrics showed that PEI/PA flame retardant coating changed the thermal decomposition process and promoted char formation revealing the obviously condensed phase flame retardant action. SEM images of char residues revealed that PEI/PA flame retardant coating promoted to form the intumescent flame retardant (IFR) char layer showing obvious IFR action. This research provides novel strategy for the development of high-efficiency flame retardant cotton fabric with good durability and physical properties using simple LBL assembly method.


Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 928 ◽  
Author(s):  
Hyelim Kim ◽  
Sunhee Lee

We prepared a horseshoe-pattern type electrical heating textile that was coated with high graphene nanoplatelet (GNP) content (32 wt% to 64 wt%) of graphene nanoplatelet/poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) composite. Silver-coated conductive yarn is used as electrode in the sample to improve its flexibility and applicability as wearable textile. These graphene nanoplatelet/PVDF-HFP coated samples with various high-contents of graphene were characterized using scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), sheet resistance analysis, and electrical heating performance analysis. Graphene nanoplatelet/PVDF-HFP coated cotton fabric improved the crystallinity and thermal stability with increasing thw high-content of GNP. With an increasing of the high-content of graphene nanoplatelet in the PVDF-HFP composite solution, the sheet resistance of samples tended to gradually decrease. That of, 64 wt% graphene nanoplatelet/PVDF-HFP composite coated sample (64 GR/cotton) was 44 Ω/sq. The electrical heating performance of graphene nanoplatelet/PVDF-HFP composite coated cotton fabric was improved with increasing the high-content of graphene nanoplatelet. When 5 V was applied to 64 GR/cotton, its surface temperature has been indicated to be about 48 °C and it could be used at a low voltage (<10 V). Thus, a horseshoe-pattern type electrical heating textile that is coated by high content of graphene nanoplatelet/PVDF-HFP composite solution sewn with silver-coated conductive yarn is expected to be applied to glove, shoes, jacket, and so on to improve its wearability and applicability.


Cellulose ◽  
2016 ◽  
Vol 23 (3) ◽  
pp. 2129-2142 ◽  
Author(s):  
Maryam Naebe ◽  
Quanxiang Li ◽  
Aysu Onur ◽  
Ron Denning

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4180-4189 ◽  
Author(s):  
Yuzhou Li ◽  
Yufan Zhang ◽  
Haoran Zhang ◽  
Tie-ling Xing ◽  
Guo-qiang Chen

In recent years, the energy supply problem of wearable electronic equipment has become a topic of increasing concern. In this work, a solid, flexible and symmetrical supercapacitor based on graphene coated cotton fabric was fabricated.


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