The correlation between crosslink density and thermal properties of high-density polyethylene/natural rubber/thermoplastic tapioca starch blends prepared via dynamic vulcanisation approach

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• 作者：A. W. M. Kahar ; H. Ismail ; A. Abdul Hamid
• 关键词：HDPE/NR/TPS ; Dynamic vulcanisation ; Gel content ; Thermal properties
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：123
• 期：1
• 页码：301-308
• 全文大小：890 KB
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• 作者单位：A. W. M. Kahar (1)
  H. Ismail (2)
  A. Abdul Hamid (3)
  
  1. School of Materials Engineering, Universiti Malaysia Perlis, 02600, Jejawi, Perlis, Malaysia
  2. School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300, Nibong Tebal, Seberang Perai Selatan, Penang, Malaysia
  3. Faculty of Engineering and Science, Curtin University, Miri, Malaysia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Sciences
  Polymer Sciences
  Physical Chemistry
  Inorganic Chemistry
  Measurement Science and Instrumentation
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1572-8943

文摘

Dynamically vulcanised NR phase with sulphur crosslinker was investigated on the thermal properties of high-density polyethylene/natural rubber/thermoplastic tapioca starch (HDPE/NR/TPS) blends. The effect of dynamic vulcanisation on the crosslink density of the NR phase was characterised by using the gel content method and Fourier transform infrared analysis. In this blend system, TPS acted as a biodegradation agent and the incorporation of TPS generally caused a decrease in thermal stability and the degree of crystallinity. However, through the comparison of thermal degradation, dynamic vulcanised HDPE/NR/TPS blends proved to be superior to unvulcanised HDPE/NR/TPS counterparts. The better dimensional stability and enhanced compatibility between phases were obtained in dynamic vulcanisation blends, as observed in the dynamic mechanical analysis. Moreover, the improvement observed in thermal degradation of dynamic vulcanisation of HDPE/NR/TPS was also correlated with the crosslink formation within the NR phase.