Polypropylene biocomposites reinforced with bamboo particles and ultrafine bamboo‐char: The effect of blending ratio

Abstract

Bamboo particles (BPs) and ultrafine bamboo‐char (UFBC) were introduced into polypropylene (PP) biocomposites by melt‐blending and injection molding, to improve the mechanical and thermal properties of PP matrix. The maximum tensile strength of 30.59 MPa was obtained when the ratio was 70/25/5, which was improved by 30% than that of pure PP. The maximum tensile modulus of 460.13 MPa was achieved when the ratio was 70/20/10, which was enhanced by 109%, 35% and 24% than that of neat PP, PP/BP (70/30), and PP/UFBC (70/30), respectively. The mechanical and thermal properties of the biocomposites were improved through adding UFBC. Improvement evidences on interfacial interaction and elemental distribution were observed by scanning electron microscope and energy dispersive spectrum analysis. The maximum melting temperature of 166.6°C was achieved that was increased 5.9°C than neat PP. Crystallization temperature was significantly improved with the increasing of UFBC and BP loadings. POLYM. COMPOS., 39:E640–E646, 2018. © 2018 Society of Plastics Engineers

Pyrolysis kinetics and mechanical properties of poly(lactic acid)/bamboo particle biocomposites: Effect of particle size distribution

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