Almajid Abdulhakim, Walter Rolf, Kroos Tim, Junaedi Harri, Gurka Martin, Khalil Khalil Abdelrazek
Mechanical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia.
Engineering Management Department, College of Engineering, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia.
Polymers (Basel). 2021 Apr 15;13(8):1296. doi: 10.3390/polym13081296.
Composite processing and subsequent characterization of microfibrillar composites (MFC) were the focus of this work. Compression molding of wound MFC filaments was used to fabricate MFC composites. The MFC composites were composed of polypropylene (PP) as matrix materials and polyethylene terephthalate (PET) as reinforcement fibers. The PP/PET blends were mixed with PET contents ranging from 22 wt% to 45 wt%. The effect of processing parameters, pressure, temperature, and holding time on the mechanical properties of the MFCs was investigated. Tensile tests were conducted to optimize the processing parameter and weight ratio of PET. Tensile strength and modulus increased with the increase in PET content. PP/45 wt% PET MFC composites properties reached the value of PP/30 wt% GF. Falling weight tests were conducted on MFC composites. The MFC composites showed the ability to absorb the impact energy compared to neat PP and PP/30 wt% GF.
微纤复合材料（MFC）的复合加工及后续表征是本工作的重点。采用伤口MFC长丝的压缩模塑来制备MFC复合材料。MFC复合材料由聚丙烯（PP）作为基体材料和聚对苯二甲酸乙二酯（PET）作为增强纤维组成。PP/PET共混物中PET含量范围为22 wt%至45 wt%。研究了加工参数（压力、温度和保压时间）对MFC力学性能的影响。进行拉伸试验以优化PET的加工参数和重量比。拉伸强度和模量随PET含量的增加而提高。PP/45 wt% PET MFC复合材料的性能达到了PP/30 wt%玻璃纤维（GF）的性能值。对MFC复合材料进行了落锤试验。与纯PP和PP/30 wt% GF相比，MFC复合材料显示出吸收冲击能量的能力。
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