THE Effect of Azido-Starch as Filler on Tensile and Tear Properties of Natural Rubber Latex Films

International Rubber Conference

Daud, S.^1 ; A.R., Azura ; M.F., Yhaya

School of Materials and Mineral Resources Engineering, USM Engineering Campus, Nibong Tebal,Penang

14300, Malaysia^1

School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kelantan

16150, Malaysia^2

关键词: Cross-link densities;    Elongation at break;    Fourier transform infra reds;    Natural rubber latex;    Rubber-filler interaction;    Swelling index;    Swelling test;    Tear properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/548/1/012015/pdf
DOI  :  10.1088/1757-899X/548/1/012015

来源: IOP

【 摘 要 】

The azido starch/Natural Rubber (azo-starch/NR) latex films were prepared with control (0), 0.5, 1.0, 1.5 and 2.0 phr of azido-starch loadings. The azido starch functional groups were characterized by Fourier Transform Infra- Red (FTIR) analysis to observe the presence of significant peaks of azide (N3).The control and azido starch-filled NR films were subjected to tensile test and tear test in order to investigate the effect of the addition of azido-starch on the mechanical properties of azo-starch/NR latex films. The tensile strength of azo-starch/NR latex films was increased with increasing azido-starch loading and slightly decreased after 1.0 phr loading. The optimum tensile strength of azo-starch/NR latex films is obtained at 1.0 phr loading. The moduli (M100 and M300) and tear strength also increased with increasing azido-starch loading. However, the elongation at break (EB) was almost similar with increasing azido-starch loading. The swelling test was done to determine the swelling index, crosslink density and rubber-filler interaction of azo-starch/NR films. The swelling index was decreased but the crosslink density increased with increasing azido-starch loading indicating the formation of crosslinks between azido-starch and rubber macromolecules.