Temperature Dependence of Thermo-Mechanical Properties of Banana Fiber-Reinforced Polyester Composites

Authors: Shaktawat, Vinodini¹; Pothan, Laly A.²; Saxena, N.S.¹; Sharma, Kananbala³; Sharma, T.P.³

Source: Advanced Composite Materials, Volume 17, Number 1, 2008 , pp. 89-99(11)

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Abstract:

Using a Dynamic Mechanical Analyzer (DMA), mechanical properties like modulus and phase transition temperature of polyester composites of banana fibers (treated and untreated) are measured simultaneously. The shifting of phase transition temperature is observed in some treatments. The performance of the composite depends to a large extent on the adhesion between polymer matrix and the reinforcement. This is often achieved by surface modification of the matrix or the filler. Banana fiber was modified chemically to achieve improved interfacial interaction between the fiber and the polyester matrix. Various silanes and alkalies were used to modify the fiber surface. Chemical modification was found to have a profound effect on the fiber/matrix interaction, which is evident from the values of phase transition temperatures. Of the various chemical treatments, simple alkali treatment with 1% NaOH was found to be the most effective.

Keywords: BANANA FIBERS; POLYESTER COMPOSITES; CHEMICAL TREATMENT; MODULUS; PHASE TRANSITION TEMPERATURE

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156855108X295672

Affiliations: 1: Semiconductor and Polymer Science Laboratory, 5-6 Vigyan Bhawan, Department of Physics, University of Rajasthan, Jaipur 302 004, India;, Email: s_vinodini@rediffmail.com 2: Department of Chemistry, Bishop Moore College, Mavelikara-690110, India 3: Semiconductor and Polymer Science Laboratory, 5-6 Vigyan Bhawan, Department of Physics, University of Rajasthan, Jaipur 302 004, India

Publication date: 2008-03-01