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- W782047537 abstract "The present work studies the thermal properties of composites of poly(3-hydroxybutyrate) (PHB) – a fully biodegradable semi-crystalline thermo-plastic obtained from renewable resources through low-impact biotechno-logical process, biocompatible and non-toxic – and vegetable fiber from the fruit (coconut) of babassu palm tree. PHB is a highly crystalline resin and this characteristic leads to suboptimal properties in some cases. Consequently, thermal properties, in particular those associated with the crystallization of the matrix, are important to judge the suitability of the compounds for specific applications. PHB/babassu composites with 0–50% load were prepared in an internal mixer. Two different types of babassu fibers with two different particle size ranges were compounded with PHB and test specimens molded by compression. Melting and crystallization behavior were studied by differential scanning calorimetry (DSC) at heating/cooling rates between 2 and 30°C/min. Several parameters, including melting point, crystallization temperature, crystallinity, and rate of crystallization, were estimated as functions of load and heating/cooling rates. Results indicate that fibers do not affect the melting process, but facilitate crystallization from the melt. Crystallization temperatures are 30 to 40°C higher for the compounds compared with the neat resin. However, the amount of fiber added has little effect on crystallinity and the degree of crystallinity is hardly affected by the load. Fiber type and initial particle size do not have a significant effect on thermal properties." @default.
- W782047537 created "2016-06-24" @default.
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- W782047537 date "2015-01-01" @default.
- W782047537 modified "2023-10-01" @default.
- W782047537 title "Thermal properties of poly(3-hydroxybutyrate)/vegetable fiber composites" @default.
- W782047537 doi "https://doi.org/10.1063/1.4918384" @default.
- W782047537 hasPublicationYear "2015" @default.
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