Modification of Nylon 6 Using Sulphuryl Chloride

Abstract

<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Nylon 6 fibres were modified by reacting them with sulphuryl chloride in benzene. The extent of reaction was evaluated by measuring the increase in the weight of modified samples. The effect of duration of the reaction, reagent concentration, temperature and atmosphere was investigated, and the physical characteristics of the modified fibres were compared with those of the parent fibre. There was a marginal increase in the density and moisture regain of the modified samples with increase in add-on, while a decrease was observed in breaking strength and modulus. There was no appreciable change in elastic recovery and elongation, but a slight improvement in the thermal stability of the modified fibres.</span>