Mechanical properties of poly-(hydroxybutyrate-co-valerate)/natural rubber/cellulose nanocrystal (PHBV/NR/CNC) nanocomposites prepared by using two-roll mill method.

Autor: Lim, K. C., Halim, N. A. S. A., Mahamud, S. N. S., Osman, A. F., Pisal, M. H. M., Masa, A.
Předmět:
Zdroj: AIP Conference Proceedings; 2024, Vol. 2883 Issue 1, p1-8, 8p
Abstrakt: Poly (hydroxybutyrate-co-valerate) (PHBV) was the ideal replacement for petroleum-based plastic, owing to its biocompatible, non-toxicity and naturally by bacteria. However, PHBV has high brittleness due to high crystallinity, becoming a major challenge for PHBV commercial production and limiting its use in molded products. Natural rubber (NR) and cellulose nanocrystal (CNC) created an excellent opportunity to enhance the modulus and minimize the effect of non-degradable materials utilized in the polymer matrix. This study demonstrates the formation of PHBV/NR/CNC ternary nanocomposites to obtain a commodity biomaterial with improved mechanical properties. The effects of CNC loadings (1, 3, 5 wt.%) on the mechanical properties and structure of the PHBV/NR/CNC nanocomposites were investigated. Based on the tensile test, the use of the CNC brought a more pronounced positive impact (especially 1wt.% CNC) to the PHBV/NR blend matrix, where it enhanced the tensile Young's modulus of the PHBV/NR/CNC nanocomposites. Fourier transform infrared spectroscopy (FTIR) confirmed the success of peroxide crosslinking after the melt compounding process by using a heated two-roll mill. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index