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Preparation of Cellulose Diacetate/Ramie Fiber Biocomposites by Melt Processing  

Lee Sang Hwan (Department of Chemical Engineering, Sungkyunkwan University)
Lee Sang Yool (Department of Chemical Engineering, Sungkyunkwan University)
Nam Jae Do (Department of Polymer Science & Engineering, Sungkyunkwan Univesity)
Lee Youngkwan (Department of Chemical Engineering, Sungkyunkwan University)
Publication Information
Polymer(Korea) / v.30, no.1, 2006 , pp. 70-74 More about this Journal
Abstract
Plasticized cellulose diacetate(CDA) was prepared by homogenizing cellulose diacetate(CDA), triacetin(TA) and epoxidized soybean oil (ESO) in a high-speed mixer, then the CDA mixture was mixed with ramie fiber to produce a green composite material. In DMA analysis, the glass transition temperature of plasticized CDA and the composite was observed at $85\;^{\circ}C\;and\;140\;^{\circ}C$, respectively. A composite reinforced with alkali treated ramie fiber exhibited significantly higher mechanical properties, such as $15\;^{\circ}C$ increase in tensile strength as well as $41\;^{\circ}C$ increase in Young's modulus when compared with commercial polypropylene. In the SEM image analysis, much enhanced adhesion between plasticized CDA and alkali treated ramie fiber (AIRa) was observed.
Keywords
biocomposites; cellulose diacetate; natural fiber; green composite;
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