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Rheological behaviour of poly(ethylene terephthalate) and poly(butylene terephthalate) blends

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Abstract

The presence of up to 4% Poly(butylene terephthalate) (PBT) in blends of Poly(ethylene terephthalate) (PET) with PBT results in an increase in viscosity and a decrease in activation energy, which has been related to the entanglement density. However, further increases in the amount of PBT up to 10% result in decreases in the viscosity, which may be due to partial phase segregation. Various blending rules have been applied to correlate the experimental results and predict the viscosities of the blends.

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Authors and Affiliations

  1. Textile Technology Department, Indian Institute of Technology, 110016, New Delhi, India

    S. P. Mishra & B. L. Deopura

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  1. S. P. Mishra
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  2. B. L. Deopura
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Mishra, S.P., Deopura, B.L. Rheological behaviour of poly(ethylene terephthalate) and poly(butylene terephthalate) blends. Rheol Acta 23, 189–194 (1984). https://doi.org/10.1007/BF01332074

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  • DOI: https://doi.org/10.1007/BF01332074

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