Abstract
The crystallization behavior, crystal morphology and form, and viscoelastic behavior of poly(butylene succinate) (PBS) and coir fiber/PBS composites (CPB) were investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM), X-ray diffraction (XRD) and dynamic mechanical analysis (DMA). The results of DSC measurement show that the crystallization temperature increases with the filling of coir fibers. POM images reveal that the spherulitic size and crystallization behavior of PBS are influenced by the coir fibers in the composites. XRD curves show that the crystal form of pure PBS and CPB are remaining almost identical. In addition, the storage modulus of CPB significantly increases comparing with the pure PBS. This predicted the dimensional stability and improved load-deformation temperature. In conclusion, the addition of coir fibers has a significant effect on the thermal properties of the matrix.
Highlights
With the progress of science and the improvement of people’s living standards, environmental pollution has become a widespread concern
It is observed that the that an exothermic peak (Texo) shifted to a higher temperature with increasing coir fibers content, meaning that the addition of coir fibers can improve the crystallization of biocomposites
During the non-isothermal/isothermal crystallization process, it is found that the crystallization rate of poly(butylene succinate) (PBS) is faster with the addition of coir fibers, but the presence of too many fibers limited the crystallization of PBS
Summary
With the progress of science and the improvement of people’s living standards, environmental pollution has become a widespread concern. The use of eco-friendly biodegradable polymers has attracted increasing interest from academia and industry worldwide as a potential solution for global environmental pollution. The results show that the addition of the fibers has a positive effect on the mechanical and thermal properties of the composites [2,3,4]. These materials can undergo environmental degradation amidst the presence of micro-organisms [5]
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