Balogun O P, Omotoyinbo J A, Alaneme K K, Adediran A A
African Materials Science and Engineering Network (A Carnegie-IAS RISE Network), University of Witwatersrand, Johannesburg, South Africa.
Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, P.M.B 704, Ondo State, Nigeria.
Heliyon. 2020 Jun 9;6(6):e04157. doi: 10.1016/j.heliyon.2020.e04157. eCollection 2020 Jun.
This paper reports the physical and mechanical properties of particulates reinforced composites. Polypropylene (PP) based composites filled with ash particulates was produced using the compression moulding. The thermal properties, structural characteristic and morphology of the composites and ash particulate were studied. Tensile properties, impact strength and flexural properties were used to evaluate the mechanical behaviour of composites. Tensile properties, elastic modulus and hardness properties of the fiber ash polymer composites were improved with aggregate fiber ash loading by 58 %, 41 % and 56 % relative to pure PP composites while there was a drop in impact strength by 56 % as compared with pure PP. Flexural strength of the fiber ash reinforced composites was enhanced significantly with increasing ash particulate loading by 45% and 32% respectively. The Fourier transform infrared spectroscopy (FTIR) revealed that changes occur due to stretching of hydrogen bond network and lignin was remove completely during carbonation process. Fracture surface morphology of fiber ash reinforced composites gave credence to the fact that good wetting between the particulate and the matrix was achieved.
本文报道了颗粒增强复合材料的物理和力学性能。采用模压成型制备了填充灰分颗粒的聚丙烯（PP）基复合材料。研究了复合材料和灰分颗粒的热性能、结构特征及形态。通过拉伸性能、冲击强度和弯曲性能来评估复合材料的力学行为。与纯PP复合材料相比，纤维灰聚合物复合材料的拉伸性能、弹性模量和硬度性能随着骨料纤维灰含量的增加分别提高了58%、41%和56%，而冲击强度下降了56%。随着灰分颗粒含量的增加，纤维灰增强复合材料的弯曲强度分别显著提高了45%和32%。傅里叶变换红外光谱（FTIR）表明，由于氢键网络的拉伸而发生了变化，并且在碳酸化过程中木质素被完全去除。纤维灰增强复合材料的断裂表面形态证实了颗粒与基体之间实现了良好的润湿性这一事实。
