Abstract
Jute fabric was modified using polyacrylic rubber as finishing agent in the presence of NH4Cl, MgCl2 and sodium salts of phosphoric acid as catalysts, employing a pad–dry–cure technique. Treatment with 10% polyacrylic rubber in the presence of 2.25% Na4P2O7, followed by drying of the padded fabric at 95°C for 5 min and curing of the dried fabric at 140°C for 5 min produced the most balanced improvements in properties, such as tear strength, flexibility, tensile strength elongation at break, moisture regain, abrasion resistance and wrinkle recovery. Functional group analysis and IR spectroscopy indicated that Na4P2O7 catalyst allowed esterification of carboxyl groups of polyacrylic rubber with the cellulose constituents of jute and the said process ultimately led to some degree of cross-linking of the chain polymers of jute.
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