Preparation, Structure And Properties Of Starch/SBR Composites

In this paper, the starch/SBR composites were prepared by latex compounding method (LCM). The modifiers were used here to improve the dispersion of starch in rubber matrix and the interfacial strength between starch and rubber, and finally contribute to improving the mechanical properties of the composites.The effects of coupling agents Si69, A-151, NDZ-105, KH-570, KH-550, KH-792 on the structure and properties of the composites were studied. The results showed that, the amino-silane KH-550 & KH-792 had good effect in enhancing the interfacial strength between starch and rubber matrix as well as the mechanical properties of the composites. The KH-550/KH-792 was introduced here by three methods: adding into the starch/SBR compounds during the roll-blending (method I), adding into the rubber latex before the starch/modified starch paste (method II), and adding into the starch/modified starch paste (method III). The first two...