The Effect of Alkali Treated Native Sago Starch Concentration on Mechanical Properties of Natural Rubber Latex Composite Films

Abstract

One of promising methods to improve starch dispersion and/or enhance interfacial strength between starch and rubber matrix is starch treatment using alkali. In this study, the effect of alkali treatment to prepare filler dispersion of native sago starch on mechanical properties of NR latex compounds was investigated. The alkali dispersed native sago starch was prepared with different percentages of total solid content (5, 10, 15 and 20%) at 10% w/w loading of NR latex compounds. Result showed the optimum mechanical properties of alkali dispersed NSS filled NR latex films were achieved at 10% TSC; with 29.74 MPa of tensile strength.