Abstract
The objective of this study was to prepare and characterize the self-healing natural rubber latex films with different zinc thiolate (ZT) content. In this work, ZT was introduced into high ammonia natural rubber latex (HANRL) through a peroxide vulcanization system at different ZT content (0, 15, 30, 45 phr). The self-healing strategy is based on reversible ionic interaction between Zn2+ ion and S- ion in ZT cross-linker. Evidence for the presence of reversible ZT ionic networks was provided by Fourier-transform infrared spectroscopy (FTIR) analysis. The results revealed that HNRL/DCP/30ZT able to recover its initial properties after the broken sample was brought in contact with each other. The healing efficiency for tensile strength, elongation at break and tear strength were obtained at 93.77%, 98.77% and 89.50%, respectively.
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