Assessment of mechanical performance, thermal stability and water resistance of novel conductive poly(lactic acid)/modified natural rubber blends with low loading of polyaniline

Dalila Shahdan, Ruey S. Chen, Sahrim Ahmad, Farrah D. Zailan, Adilah Mat Ali

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Biodegradable conductive polymer blends made from poly(lactic acid) (PLA), liquid natural rubber (LNR) and polyaniline (PANI) were prepared via a melt-blending technique assisted by ultrasonic treatment. The effects of PANI at low loading (0.03 to 0.11wt%) on the electrical conductivity and mechanical, thermal and physical properties of PLA/LNR/PANI blends were investigated. It was found that the mechanical properties of samples improved when PANI was introduced into PLA/LNR. Tensile results showed that the optimum loading of PANI was achieved at 0.07wt% with an improvement of 8% in tensile strength compared to neat PLA/LNR. Although it was at low loading, the incorporation of PANI promoted an outstanding electrical conductivity to PLA/LNR blends. Thermal analysis of the PLA/LNR/PANI blends was conducted using differential scanning calorimetry and thermogravimetry. The thermal stabilities of the blends were improved markedly with the presence of PANI. Comparing to PLA/LNR, the incorporation of PANI component improved the resistance towards water absorption. Variable-pressure scanning electron microscopy micrographs of PLA/LNR/PANI confirmed the good mixing of PANI with PLA/LNR and strong interaction networks among the PANI, PLA and LNR components.

Original languageEnglish
JournalPolymer International
DOIs
Publication statusAccepted/In press - 1 Jan 2018

Fingerprint

Rubber
Lactic acid
Polyaniline
Thermodynamic stability
Water
Liquids
polyaniline
poly(lactic acid)
Mechanical properties
Water absorption
Polymer blends
Thermoanalysis
Thermogravimetric analysis
Differential scanning calorimetry
Tensile strength
Thermodynamic properties
Physical properties
Ultrasonics

Keywords

  • Biodegradable polymer
  • Conductive polymer
  • Physical properties
  • Tensile properties
  • Thermal analysis

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

@article{9be86569396f4affb392bebc4e9d297b,
title = "Assessment of mechanical performance, thermal stability and water resistance of novel conductive poly(lactic acid)/modified natural rubber blends with low loading of polyaniline",
abstract = "Biodegradable conductive polymer blends made from poly(lactic acid) (PLA), liquid natural rubber (LNR) and polyaniline (PANI) were prepared via a melt-blending technique assisted by ultrasonic treatment. The effects of PANI at low loading (0.03 to 0.11wt{\%}) on the electrical conductivity and mechanical, thermal and physical properties of PLA/LNR/PANI blends were investigated. It was found that the mechanical properties of samples improved when PANI was introduced into PLA/LNR. Tensile results showed that the optimum loading of PANI was achieved at 0.07wt{\%} with an improvement of 8{\%} in tensile strength compared to neat PLA/LNR. Although it was at low loading, the incorporation of PANI promoted an outstanding electrical conductivity to PLA/LNR blends. Thermal analysis of the PLA/LNR/PANI blends was conducted using differential scanning calorimetry and thermogravimetry. The thermal stabilities of the blends were improved markedly with the presence of PANI. Comparing to PLA/LNR, the incorporation of PANI component improved the resistance towards water absorption. Variable-pressure scanning electron microscopy micrographs of PLA/LNR/PANI confirmed the good mixing of PANI with PLA/LNR and strong interaction networks among the PANI, PLA and LNR components.",
keywords = "Biodegradable polymer, Conductive polymer, Physical properties, Tensile properties, Thermal analysis",
author = "Dalila Shahdan and Chen, {Ruey S.} and Sahrim Ahmad and Zailan, {Farrah D.} and {Mat Ali}, Adilah",
year = "2018",
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language = "English",
journal = "Polymer International",
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T1 - Assessment of mechanical performance, thermal stability and water resistance of novel conductive poly(lactic acid)/modified natural rubber blends with low loading of polyaniline

AU - Shahdan, Dalila

AU - Chen, Ruey S.

AU - Ahmad, Sahrim

AU - Zailan, Farrah D.

AU - Mat Ali, Adilah

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Biodegradable conductive polymer blends made from poly(lactic acid) (PLA), liquid natural rubber (LNR) and polyaniline (PANI) were prepared via a melt-blending technique assisted by ultrasonic treatment. The effects of PANI at low loading (0.03 to 0.11wt%) on the electrical conductivity and mechanical, thermal and physical properties of PLA/LNR/PANI blends were investigated. It was found that the mechanical properties of samples improved when PANI was introduced into PLA/LNR. Tensile results showed that the optimum loading of PANI was achieved at 0.07wt% with an improvement of 8% in tensile strength compared to neat PLA/LNR. Although it was at low loading, the incorporation of PANI promoted an outstanding electrical conductivity to PLA/LNR blends. Thermal analysis of the PLA/LNR/PANI blends was conducted using differential scanning calorimetry and thermogravimetry. The thermal stabilities of the blends were improved markedly with the presence of PANI. Comparing to PLA/LNR, the incorporation of PANI component improved the resistance towards water absorption. Variable-pressure scanning electron microscopy micrographs of PLA/LNR/PANI confirmed the good mixing of PANI with PLA/LNR and strong interaction networks among the PANI, PLA and LNR components.

AB - Biodegradable conductive polymer blends made from poly(lactic acid) (PLA), liquid natural rubber (LNR) and polyaniline (PANI) were prepared via a melt-blending technique assisted by ultrasonic treatment. The effects of PANI at low loading (0.03 to 0.11wt%) on the electrical conductivity and mechanical, thermal and physical properties of PLA/LNR/PANI blends were investigated. It was found that the mechanical properties of samples improved when PANI was introduced into PLA/LNR. Tensile results showed that the optimum loading of PANI was achieved at 0.07wt% with an improvement of 8% in tensile strength compared to neat PLA/LNR. Although it was at low loading, the incorporation of PANI promoted an outstanding electrical conductivity to PLA/LNR blends. Thermal analysis of the PLA/LNR/PANI blends was conducted using differential scanning calorimetry and thermogravimetry. The thermal stabilities of the blends were improved markedly with the presence of PANI. Comparing to PLA/LNR, the incorporation of PANI component improved the resistance towards water absorption. Variable-pressure scanning electron microscopy micrographs of PLA/LNR/PANI confirmed the good mixing of PANI with PLA/LNR and strong interaction networks among the PANI, PLA and LNR components.

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