Study of plasma polymerization of dichloromethane on cotton and polyester fabrics

Abstract

Dichloromethane (DCM) was polymerized on cotton and polyester fabrics in nonequilibrium low-temperature plasma for different durations and the effects obtained were discussed. The modified cotton and polyester fabrics were dyed with Reactive Red HE 8BI and C.I. Disperse Red 364 dyes, respectively. The relative color strength of polymerized dyed fabrics was measured and compared with that of untreated dyed fabrics. The color parameters of polymerized fabrics were evaluated by the CIE system of color measurement, with standard illuminant D65 and 10°s tandard observer, by a Dataflash 100 color measurement spectrophotometer equipped with Colortools QC 1.3 color quality control software. The chemical structures of untreated and polymerized fabrics were studied by attenuated total reflectance-infrared spectroscopy. The presence of free radicals, attributed to the polymerization, was measured by electron spin resonance spectroscopy.

Effect of Nitrogen Plasma Treatment and Direct Dye on Zeta Potential of Cotton Fabric

“…Also sulfur hexafluoride (SF 6 ) plasma tends the cotton fabrics to be more hydrophobic. [24][25][26] .…”

Pretreatments of Textiles Prior to Dyeing: Plasma Processing

“…The another disadvantage is that it can lead to the generation of hazardous chemical waste and can cause skin irritation, even with very small amount of residual on the textile material. The effect of pretreatment of polyester with DMF, DCM and PCE on dyeability of polyester fabric was studied for disperse dyes (Jahagirdar and Tiwari, 2004;Patel and Bhat, 1986). The dye uptake depended on the solvent and the temperature and duration of pretreatment.…”

“…The surface of apparel / textile garment that is in contact with human skin could be modified to absorb the body moisture while the outside surface could be modified to repel water. Several studies showed that properties of polymeric substrates could be altered through surface modification ; Deshmukh and Shetty, 2007;Jahagirdar and Tiwari, 2004;Navaneetha P., et al, 2009;Yen et al, 2006).…”

Caracterização de filmes de poliéster modificados por plasma de O2 a baixa pressão

“…Vários mecanismos, modelados a partir da termodinâmica e cinética molecular, são considerados na literatura para interpretar o fenômeno da adesão. Isso permite examinar a estrutura e as propriedades da superfície dos polímeros na resistência da junção adesiva [1][2][3][4][5]. A principal conclusão encontrada afirma que as características da adesão são afetadas por duas propriedades dos polímeros, simultaneamente nomeadas de energia superficial e mobilidade molecular.…”

“…Nos últimos anos a aplicação de descarga luminosa por plasma tem se expandido rapidamente, isso é devido entre outros aspectos, a grande possibilidade de variação das espécies químicas presentes no plasma, que pode se dar através da simples modificação da atmosfera gasosa, isso gera uma larga liberdade química fornecida pelos plasmas de não equilíbrio térmico [4][5][6][7][8].…”