Journal
CARBOHYDRATE POLYMERS
Volume 87, Issue 3, Pages 2000-2004Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2011.10.023
Keywords
Ramie fiber; Polypropylene; Silicone oil; Composites; Properties
Categories
Funding
- MOST [2008AA030905]
- Natural Science Foundation of China [51073051]
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body [71075009]
- Fundamental Research Funds for the Central Universities
- Hunan University
- Chinese automobile independent innovation capacity building project
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This paper focused on the analyses of the composition, microstructure, thermal stability and mechanical behavior of modified ramie fiber and its reinforced polypropylene composites. Ramie fiber (RF) was treated with epoxy-silicone oil (ESO) at 160 degrees C in argon gas. The FTIR and XRD analyses indicated that some silicone molecular chains were bonded on the surface of modified RF, which decreased the crystallinity of the fiber without changing the crystalline type of cellulose. The SEM results of fracture surface showed that the modified RF/PP composite had better interfacial bonding between RF and PP. The mechanical tests showed that the impact strength and the elongation at break of RF/PP were increased by 17.0% and 196% after modification, respectively. The tensile strength of 30RF/PP was improved from 18.95 MPa to 25.96 MPa compared to pure PP. The results of TGA showed that fiber treatment could improve the degradation temperature of RF/PP composites. (C) 2011 Elsevier Ltd. All rights reserved.
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