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首页> 外文期刊>JOM >Thermal Behavior of Polyester Composites Reinforced with Green Sugarcane Bagasse Fiber
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Thermal Behavior of Polyester Composites Reinforced with Green Sugarcane Bagasse Fiber

机译：聚酯复合材料的热行为加固绿甘蔗面包纤维纤维

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摘要

Natural fibers such as those from sugarcane bagasse may be obtained as industrial waste products. These fibers have recently been investigated as low-cost reinforcements in composites for engineering applications, some of which may require exposure to temperatures above ambient. In the present work, fibers extracted from sugarcane bagasse were used at up to 30?vol.% as reinforcement in polyester-matrix composites. The thermal behavior of these composites was investigated by thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) as well as dynamic mechanical analysis (DMA) and differential scanning calorimetry (DSC). TGA/DTG results indicated similar limits of thermal stability at about 200°C for the neat polyester and the bagasse fiber composites. The thermal degradation peak at around 370°C was also similar, being attributed mainly to polyester. DSC analysis revealed that bagasse fiber incorporation caused only a minor change in the glass-transition temperature. On the contrary, DMA parameters revealed notable changes attributed to effect of the bagasse fibers on the viscous stiffness and damping capacity of the polyester.
机译：可以获得自然纤维，例如来自甘蔗队甘蔗渣的纤维作为工业废物制品。这些纤维最近被调查为用于工程应用的复合材料的低成本增强，其中一些可能需要暴露于环境温度的温度。在本作本作的情况下，从甘蔗囊中提取的纤维在最多30℃下使用纤维。％作为聚酯 - 基质复合材料中的增强剂。通过热重分析（TGA）和衍生热重量法（DTG）研究了这些复合材料的热行为以及动态机械分析（DMA）和差示扫描量热法（DSC）。 TGA / DTG结果表明纯聚酯和甘蔗渣纤维复合材料约200℃的热稳定性相似。在370℃约为370℃的热降解峰也是相似的，主要归因于聚酯。 DSC分析表明，甘蔗渣纤维掺入只引起了玻璃化转变温度的微小变化。相反，DMA参数揭示了群体纤维对聚酯的粘性刚度和阻尼能力的影响的显着变化。

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