Novel Applications of Atmospheric Pressure Plasma on Textile Materials

plasma;grafting;HTCC;desizing;PVA;starch

Cornelius, Carrie Elizabeth ; Richard Venditti, Committee Member,Mohamed Bourham, Committee Co-Chair,Peter Hauser, Committee Member,Marian McCord, Committee Chair,Ahmed El-Shafei, Committee Member,Cornelius, Carrie Elizabeth ; Richard Venditti ; Committee Member ; Mohamed Bourham ; Committee Co-Chair ; Peter Hauser ; Committee Member ; Marian McCord ; Committee Chair ; Ahmed El-Shafei ; Committee Member

University:North Carolina State University

关键词: plasma;    grafting;    HTCC;    desizing;    PVA;    starch;   

Others  :  https://repository.lib.ncsu.edu/bitstream/handle/1840.16/5074/etd.pdf?sequence=1&isAllowed=y

美国|英语

来源: null

【 摘 要 】

Various applications of atmospheric pressure plasma are investigated in conjunction with polymeric materials including paper, polypropylene non-woven fabric, and cotton.The effect of plasma on bulk and surface properties is examined by treating both cellulosic pulp and prefabricated paper with various plasma-gas compositions.After treatment, pulp is processed into paper and the properties are compared.The method of pulp preparation is found to be more significant than the plasma, but differences in density, strength, and surface roughness are apparent for the pulp vs. paper plasma treatments.The plasma is also used to remove sizes of PVA and starch from poly/cotton and cotton fabric respectively.In both cases plasma successfully removes a significant amount of size, but complete size removal is not achieved.Subsequent washes (PVA) or scouring (cotton) to remove the size are less successful than a control, suggesting the plasma is cross-linking the size that is not etched away.However, at short durations in cold water using an oxygen plasma, slightly more PVA is removed than with a control.For the starch sized samples, plasma and scouring are never as successful at removing starch as a conventional enzyme, but plasma improves dyeability without need for scouring.Plasma is also used to graft chemicals to the surface of polypropylene and cotton fabric.HTCC, an antimicrobial is grafted to polypropylene with successful grafting indicated by x-ray photoemission spectroscopy (XPS), dye tests, and Fourier transform infrared spectroscopy (FTIR).Antimicrobial activity of the grafted samples is also characterized.3ATAC, a vinyl monomer is also grafted to polypropylene and to cotton.Additives including Mohr’s salt, potassium persulfate, and diacrylate are assessed to increase yield. Successful grafting of 3ATAC is confirmed by XPS and dye testing.A combination of all three additives is identified as optimum for maximizing graft yield.