Effects of cellulose nano crystal addition on the properties of polyhydroxybutyrate-co-valerate (PHBV) films

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Ashori A.R.; SHAHREKI A.; ISMAEILI MOGHADAM S.

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Journal: IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES Year:2019 | Volume:10 | Issue:1 Page(s): 153-164

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Title

Effects of cellulose nano crystal addition on the properties of polyhydroxybutyrate-co-valerate (PHBV) films

Author(s)

Ashori A.R. | SHAHREKI A. | ISMAEILI MOGHADAM S. | Issue Writer Certificate

Keywords

nanocompositeQ1

polyhydroxybutyrate-co-valerateQ1

cellulose nanocrystalQ1

bio-polymerQ1

green compositeQ1

Abstract

polyhydroxybutyrate-co-valerate (PHBV) is a biodegradable and thermoplastic biopolymer which can be produced by a species of bacteria. This biopolymer has remarkably been noticed by scientific and industrial associations due to the similar properties with polypropylene. In spite of greater benefits than petrochemical polymers, the use of PHBV is limited due to the high-cost production process and low range of physical and mechanical properties. One solution to overcome these problems is to utilize nanoparticles as reinforcement. In this research, PHBV nanocomposite films containing cellulose nanocrystals (CNC) has been provided. The effects of adding nanoparticles on the mechanical properties such as tensile strength and elongation, dynamicmechanical properties such as modulus and tan δ were studied. Also, morphology and thermal features by scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) were investigated, respectively. For this purpose, CNC with ratio of 0, 1, 3 and 5 wt% were added to biopolymer matrix; then nanocomposite films were obtained by solvent casting method. After adding nanoparticles, the tensile strength and thermal stability of the PHBV/CNC composite films increased and the elongation decreased. SEM observations showed that the existence of large amount of nanoparticles (3 wt%) are strongly agglomerated in the biopolymer matrix. This leads to a decrease in the mechanical properties of the composites for more than 3% by weight. Finally, the results of this study showed that CNC is an effective reinforcing agent for modifying physical and mechanical properties of biopolymer composite films.

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APA: Copy

Ashori, A.R., SHAHREKI, A., & ISMAEILI MOGHADAM, S.. (2019). Effects of cellulose nano crystal addition on the properties of polyhydroxybutyrate-co-valerate (PHBV) films. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, 10(1 ), 153-164. SID. https://sid.ir/paper/184418/en

Vancouver: Copy

Ashori A.R., SHAHREKI A., ISMAEILI MOGHADAM S.. Effects of cellulose nano crystal addition on the properties of polyhydroxybutyrate-co-valerate (PHBV) films. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES[Internet]. 2019;10(1 ):153-164. Available from: https://sid.ir/paper/184418/en

IEEE: Copy

A.R. Ashori, A. SHAHREKI, and S. ISMAEILI MOGHADAM, “Effects of cellulose nano crystal addition on the properties of polyhydroxybutyrate-co-valerate (PHBV) films,” IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, vol. 10, no. 1 , pp. 153–164, 2019, [Online]. Available: https://sid.ir/paper/184418/en

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