复合材料
材料科学
抗弯强度
热塑性聚氨酯
极限抗拉强度
纤维
热重分析
热塑性塑料
扫描电子显微镜
聚氨酯
艾氏冲击强度试验
热分解
弹性体
有机化学
化学
作者
A.M. Radzi,S. M. Sapuan,Muhd Ridzuan Mansor
标识
DOI:10.1080/03602559.2017.1332206
摘要
The aim of this paper is to present research findings on the measurements of mechanical, morphological, and thermal properties of Roselle fiber-reinforced thermoplastic polyurethane composites. The Roselle fiber/thermoplastic polyurethane composites were prepared with fibers of different sizes such as 125 µm and lower, 125–300 and 300–425 µm by internal mixer and hot press at 170°C. The results show that mechanical properties (tensile, flexural, and impact properties) of the composites were improved with the increase in fiber sizes. The highest tensile (10.45 MPa), flexural strength (6.93 MPa), and impact strength (20.22 kJ/m2) was obtained from composites with 300–425 µm fiber size of Roselle fiber/thermoplastic polyurethane composites. Morphological properties of dispersion fiber and tensile fracture surfaces were studied using scanning electron microscope. Thermal properties of the composites were studied using thermogravimetric analyses and results showed that the thermal decomposition effect was almost similar for all compositions.
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