Mechanical and thermal properties of eucalyptus fiber composites from blend between biodegradable poly(butylene succinate) and Recycled PET

Authors

  • Nattakarn Hongsriphan Department of Materials Science and Engineering,Faculty of Engineering and Industrial Technology,Silpakorn University,Nakhon Pathom https://orcid.org/0000-0002-5833-8990
  • Phoorinat Dangmanee Department of Materials Science and Engineering,Faculty of Engineering and Industrial Technology,Silpakorn University,Nakhon Pathom
  • Mookyada Mankrut Department of Materials Science and Engineering,Faculty of Engineering and Industrial Technology,Silpakorn University,Nakhon Pathom
  • Warunkarn Jantaraka Department of Materials Science and Engineering,Faculty of Engineering and Industrial Technology,Silpakorn University,Nakhon Pathom

Keywords:

Short fiber composite, Poly(butylene succinate), Recycled PET, Eucalyptus fibers, MPS silane

Abstract

The goal of this study was to enhance rigidity and to reduce cost of the PBS-based composites by blending with recycled poly(ethylene terephthalate) (r-PET) and Eucalyptus fibers. Prior compounding, Eucalyptus fibers were treated with alkali and γ-methacryloxypropyl trimethoxysilane (MPS) solution for compatibility improvement. PBS and r-PET were melt blended in a twin-screw extruder with the weight ratio of 95/5, 90/10, and 80/20 wt%, and compounded with MPS treated Eucalyptus fibers using fiber loading of 3, 5, and 7 wt% of composites. Samples were characterized by tensile test, notched Izod impact test, SEM, NMR, and DSC. It was found that r-PET increased rigidity of PBS matrix but reduced impact resistance. Glass transition temperature of PBS and r-PET shifted toward each other indicating compatibility between them via transesterification. Chemical shifts in NMR indicated chemical interaction between PBS matrix and MPS grafted on Eucalyptus fibers, which illustration of interaction was proposed. Blending PBS with r-PET and Eucalyptus fibers synergistically increased rigidity for the PBS matrix. Composites of PBS/r-PET 80/20 wt% blends with 7 wt% fiber presented Young’s modulus 67.3% higher than that of neat PBS. For impact property, it was found that it depended on r-PET content in the composites that the composites from PBS/r-PET 95/5 wt% blend was the best. SEM images revealed that there were fine particles of r-PET domains dispersed inside PBS matrix, and wetting of PBS on silane treated fibers was clearly obtained.

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Published

2017-06-30

How to Cite

[1]
N. Hongsriphan, P. . Dangmanee, M. Mankrut, and W. Jantaraka, “Mechanical and thermal properties of eucalyptus fiber composites from blend between biodegradable poly(butylene succinate) and Recycled PET”, J Met Mater Miner, vol. 27, no. 1, Jun. 2017.

Issue

Vol. 27 No. 1 (2017)

Section

Original Research Articles

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