Journal
POLYMER TESTING
Volume 30, Issue 1, Pages 124-130Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2010.11.004
Keywords
Sisal fiber; Poly(butylene succinate); Torque rheometer; Rheological properties
Funding
- National Nature Science Foundation of China [50903033, 50973035, 10872071]
- National Key Technology R&D Program of China [2009BAI84B05, 2009BAI84B06]
- Fundamental Research Funds for the Central Universities [2009ZM0317]
- Technology Development Center for Polymer Processing Engineering,Guangdong Industry Technology College [2010001]
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Rheological parameters are important for processing plant fiber/polymer composites. However, it is not appropriate to evaluate the rheological parameters of the composites with a capillary rheometer. A method using a torque rheometer was developed and used to evaluate the rheological properties of sisal fiber (SF)/poly(butylene succinate) (PBS) composites. The aspect ratios (the ratio of fiber length to diameter) of SFs after mixing were also measured. The effects of angular velocity and SF content on the aspect ratios of SFs in the composites and on the rheological parameters were analyzed. The results indicate that shear thinning is more pronounced with increasing SF content, because of disentanglement, breakage and orientation of SFs. (C) 2010 Elsevier Ltd. All rights reserved.
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