CRYSTALLIZATION BEHAVIOR, THERMAL AND MECHANICAL PROPERTIES OF PHBV/GRAPHENE NANOSHEET COMPOSITES

Bing-jie Wang; Yu-jie Zhang; Jian-qiang Zhang; Qu-ting Gou; Zong-bao Wang; Peng Chen; Qun Gu

doi:10.1007/s10118-013-1248-1

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CRYSTALLIZATION BEHAVIOR, THERMAL AND MECHANICAL PROPERTIES OF PHBV/GRAPHENE NANOSHEET COMPOSITES

PAPER | Updated：2023-01-03

- CRYSTALLIZATION BEHAVIOR, THERMAL AND MECHANICAL PROPERTIES OF PHBV/GRAPHENE NANOSHEET COMPOSITES
- Chinese Journal of Polymer Science Vol. 31, Issue 4, Pages: 670-678(2013)
- Affiliations：
  
  a.Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
  b.School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
- Author bio：
  
  **Qun Gu (顾群), E-mail: guqun@nimte.ac.cn
- Funds：
- DOI：10.1007/s10118-013-1248-1
  CLC：
- Received：04 July 2012，
  
  Revised：2012-08-22，
  
  Accepted：23 August 2012，
  
  Published：2013-04
- Accepted：
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Bing-jie Wang, Yu-jie Zhang, Jian-qiang Zhang, et al. CRYSTALLIZATION BEHAVIOR, THERMAL AND MECHANICAL PROPERTIES OF PHBV/GRAPHENE NANOSHEET COMPOSITES[J]. Chinese Journal of Polymer Science, 2013, 31(4): 670-678.
DOI：

Bing-jie Wang, Yu-jie Zhang, Jian-qiang Zhang, et al. CRYSTALLIZATION BEHAVIOR, THERMAL AND MECHANICAL PROPERTIES OF PHBV/GRAPHENE NANOSHEET COMPOSITES[J]. Chinese Journal of Polymer Science, 2013, 31(4): 670-678. DOI： 10.1007/s10118-013-1248-1.

摘要

Abstract

Biodegradable poly(3-hydroxybutyrate-

-3-hydroxyvalerate) (PHBV)/graphene nanosheet (GNS) composites were prepared

via

a solution-casting method at low GNS loadings in this work. Transmission electron microscopy revealed that a fine dispersion of GNSs was achieved in the PHBV matrix. The thermal properties of the nanocomposites were investigated by thermogravimetric analysis

and the results showed that the thermal stability of PHBV was significantly improved with a very low loading of GNSs. Nonisothermal melts crystallization behavior

spherulitic morphology and crystal structure of neat PHBV and the PHBV/GNSs nanocomposites were investigated

and the experimental results indicated that crystallization behavior of PHBV was enhanced by the presence of GNSs due to the heterogeneous nucleation effect; however

the two-dimensional (2D) GNSs might restrict the mobility of the PHBV chains in the process of crystal growing. Dynamic mechanical analysis studies showed that the storage modulus of the PHBV/GNSs nanocomposites was greatly improved.

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