Rheological properties of teak wood flour reinforced HDPE and maize starch composites

Abstract

Teak wood flour reinforced high density polyethylene and maize starch composites were prepared by using maleic anhydride grafted polyethylene as a compatibilizer. The mechanical properties (tensile and flexural) of all the composites increased after addition of 10%-40% teak wood flour into HDPE matrix. The complex viscosity (η*) was higher for all the composites at the low frequency, but decreased with increasing frequencies indicating a shear thinning behavior of the composites. The storage modulus and loss modulus increased for the composites compared to the HDPE at low frequencies. Damping factor peak of HDPE and composites showed high below 1 Hz, but the peak start decreasing with increasing above 1 Hz. The relaxation behavior of HDPE and the composites after incorporating teak wood flour, maize starch, and compatibilizer was obtained by Han plot. Biodegradability was enhanced with the incorporation of teak wood flour, maize starch into the composites. Appreciable water uptake and the thickness swelling for the composites indicating it's potential for interior, automobile and packaging applications.

Effect of Grain Husk Microfibers on Physicochemical Properties of Carboxymethyl Polysaccharides-Based Composite

“…There are many reports on using wood our as reinforcement for synthetic or biopolymers, e.g. thermoplastic starch-based composites [15][16][17][18].…”

Effect of Grain Husk Microfibers on Physicochemical Properties of Carboxymethyl Polysaccharides-based Composite

“…There are many reports on using wood our as reinforcement for synthetic or biopolymers, e.g. thermoplastic starch-based composites [15][16][17][18].…”

Rheological Behavior of High Density Polyethylene (HDPE) Filled with Corn Stalk Biochar

“…The rheological method can obtain the interfacial properties of composites and the viscoelastic information related to its internal structure, as well as the relationship between the composition of reaction system, microstructure and machining properties [11] . With maleic anhydride grafted polyethylene as the compatibilizer, teak wood flour reinforced HDPE and maize starch composites were prepared, and the rheological properties of the composites were studied [12] . Recycled polyethylene (rPE)/ wood plastic composite was prepared and the effect of graft copolymer on rheological properties of the composite was studied.…”