Chemical treatments of rice husk filler and jute fiber for the use in green composites

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• 作者：Ajoy K. Chanda ; Abhinav Hazra ; M. Praveen Kumar ; Sudarsan Neogi…
• 关键词：Green composite ; Acrylic treatment ; Sodium hydroxide treatment ; Rice husk ; Jute mat
• 刊名：Fibers and Polymers
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：16
• 期：4
• 页码：902-910
• 全文大小：915 KB
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• 作者单位：Ajoy K. Chanda (1)
  Abhinav Hazra (1)
  M. Praveen Kumar (1)
  Sudarsan Neogi (1)
  Swati Neogi (1)
  
  1. Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, 721302, India
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  
• 出版者：The Korean Fiber Society
• ISSN：1875-0052

文摘

The development of green composites using different natural fiber reinforcements is an area of active research to reduce the environmental footprint. These composites have serious limitations with high water absorption and reduced mechanical strength. The objective of this work is to develop polymeric green composite form natural reinforcements — jute and rice husk, with improved water resistance and flexural characteristics. Rice husk and jute mat were chemically treated with acrylic acid and sodium hydroxide. The effective treatment conditions such as treatment temperature, time and concentration of the chemical to minimize water absorption, were determined. The effective acrylic acid concentration, temperature and time for acrylic treatment process were 10 volume percent, 60 °C and 4 hours for rice husk and 10 volume percent, 90 °C and 6 hours for jute mat respectively. The flexural properties were also reported for the composites. The surface chemistry, surface morphology and composition (hydroxyl, cellulose and hemicelluloses content) of the treated and untreated natural reinforcements were also analysed. It was observed that the acrylic treatment reduced the water absorption of the composites significantly with marginal reduction on mechanical property. Alkali treatment (using sodium hydroxide) improved the flexural strength of the rice husk reinforced composite, however it exhibits an adverse effect on water resistance properties.