The effect of coupling agent and mixing methods on properties of natural rubber and low density polyethylene blends

Abstract

Coupling agents are molecular bridges at the interface between two substrates, an inorganic filler an organic polymer matrix. When incorporated into polymer systems, they often promote adhesio) improve dispersion, improve impact strength and thus reduce embrittlement. The practical Utility polymer blend is determined by the compatibility of component polymers, which is considered asjtifundamental property. It has been observed that majority of rubber-thermoplastic blends, in 1 natural rubber (NR) and low density polyethylene (LDPE) blends are incompatible thus -prinferior properties. Thermoplastic molecules can be reshaped with heat and pressure since they cross-link. This provides them the property of being easily fabricated by conventional plastics pti^ techniques such as extrusion, injection molding and blow molding. The main of this s investigate the effects of titanate base coupling agent and mixing methods on NR and L composites in terms of their physic-mechanical, chemical properties and phase morphology of 50/50 NR/LDPE filled CaCo3 composites were prepared by using internal mixer (brabend and 60 rpm for 14 minutes. Coupling agent was incorporated into polymer matrix