HIGH SHEAR RHEOLOGY OF PBT/COIR FIBRE COMPOSITES REVEALING THE IMPACT OF SURFACE TREATMENT OF COIR FIBRE
DOI:
https://doi.org/10.29121/granthaalayah.v13.i3.2025.6279Keywords:
PBT, Coir Fibre, Surface Treatment, Rheology, Composites, Power Law Index, Consistency IndexAbstract [English]
Poly(butylene terephthalate), (PBT) was melt blended with coir fibre using twin extruder in the ratios 0%, 5%, 10%, 15% and 25% (wt. percent) to prepare composites . In order to understand the role of surface functionalities and properties, the coir fibre was treated with alkali (NaOH) to remove impurities from the surface and again the alkali treated coir fibre was treated with silanizing agent, 3-aminopropyl triethoxy silane, to silanize the surface. Thus, way three classes of composites were more prepared with untreated, alkali treated and silane treated coir fibre in abovesaid fibre contents. Their rheological properties were studied using capillary rheometer. It was found that the fibre content as well as surface interactions enhanced and modified the rheological properties of the composites revealing the role of entalglement, steric hindrance and surface interactions
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Paul, D.R; Newman, S. Polymer blends; Academic Press: New York, 1978; Vol.2, pp 35-36. DOI: https://doi.org/10.1016/B978-0-12-546802-2.50008-7
Chirawithayaboon, A.; Kiatkamjornwong, S. J. Appl. Polym. Sci. 2004, 91, 742. DOI: https://doi.org/10.1002/app.13215
Gupta A.K.; Kumar P.K.; Ratnam B.K. J. Appl. Polym. Sci. 1991, 42, 2595. DOI: https://doi.org/10.1002/app.1991.070420925
E. Martuscelli; C. Silvestre; G. Abate, Morphology, crystallization and melting behaviour of films of isotactic polypropylene blended with ethylene-propylene copolymers and polyisobutylene. Polymer 1982, 23, (2), 229-237. DOI: https://doi.org/10.1016/0032-3861(82)90306-8
M. Couch; D. Binding, High pressure capillary rheometry of polymeric fluids. Polymer 2000, 41, (16), 6323-6334. DOI: https://doi.org/10.1016/S0032-3861(99)00865-4
D. Bigg, Rheological behavior of highly filled polymer melts. Polymer Engineering and Science 1983, 23, (4), 206-210. DOI: https://doi.org/10.1002/pen.760230408
C. Han; T. Van Den Weghe; P. Shete; J. Haw, Effects of coupling agents on the rheological properties, processability, and mechanical properties of filled polypropylene. Polymer Engineering and Science 1981, 21, (4), 196-204. DOI: https://doi.org/10.1002/pen.760210404
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