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首页> 外文期刊>Journal of Polymers and the Environment >Study of the Thermal, Mechanical and Melt Rheological Properties of Rice Straw Filled Poly (Butylene Succinate) Bio-composites Through Reactive Extrusion Process
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Study of the Thermal, Mechanical and Melt Rheological Properties of Rice Straw Filled Poly (Butylene Succinate) Bio-composites Through Reactive Extrusion Process

机译：通过反应挤出工艺研究水稻秸秆填充聚（丁二酸酯）生物复合材料的热，机械和熔化流变性能

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摘要

The present study involved valorisation of rice straw (RS) in the form of rice straw flour (RSF) for the fabrication of poly (butylene succinate) (PBS) based bio-composites through a melt extrusion method, using dicumyl peroxide (DCP) as the cross-networking agent, and study of the morphological, thermal, mechanical and rheological behaviours of the extruded bio-composites. A layered like morphology with good dispersion of RSF in the PBS matrix was observed from X-ray diffraction and field emission scanning electron microscopic analysis. Thermo gravimetric analysis showed that the incorporation of RSF improved the thermal stability of PBS, whereas the value of the different thermal properties i.e. glass transition temperature (T-g), melting temperature (T-m) remained almost identical. Addition of DCP (2 wt%) into the PBS-RSF systems increased both the tensile strength and elongation at break (EB) (%) values. Rheological investigation of the bio-composites showed that the storage modulus (G') was less than the loss modulus (G") over the angular frequency (omega) range until crossover, corroborating the viscous behaviour of the samples. The complex viscosity, eta' was constant when omega was less than 1 rad/s for all the samples, showing Newtonian characteristics. Shear thinning behaviour was observed when omega was greater than 1 rad/s. Furthermore, no phase separation was observed from the Han plot and good compatibility was noticed from the Cole-Cole plot, which signifies good rheological properties of the fabricated bio-composites.
机译：本研究涉及稻草（RS）的稻草（RSF）的纳米秸秆（RSF）的形式，用于通过熔融挤出方法制造聚（丁二烯琥珀酸）（PBS）的生物复合材料，使用二磺酰基（DCP）为交叉网络代理，以及挤出生物复合材料的形态学，热，机械和流变行为的研究。从X射线衍射和场发射扫描电子显微镜分析中观察到PBS基质中RSF良好的层状形态。热重量分析表明，RSF的掺入改善了PBS的热稳定性，而不同的热性能的值I.。玻璃化转变温度（T-G），熔融温度（T-M）几乎相同。在PBS-RSF系统中加入DCP（2wt％）增加了抗拉强度和断裂（EB）（％）值的伸长率。生物复合材料的流变研究表明，储存模量（g'）小于角频率（ω）范围内的损耗模量（g“），直到交叉，证实样品的粘性行为。复杂粘度，eta '当欧米茄对于所有样品小于1 rad / s时，呈牛顿特征是恒定的。当ω大于1 rad / s时，观察到剪切稀疏行为。此外，从汉字和良好的相容性观察到没有相分离分离。从COLE-COLE图中被注意到，表示制造的生物复合材料的良好流变性质。

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