Rahman Rozyanty, Syed Putra Syed Zhafer Firdaus, Abd Rahim Shayfull Zamree, Nainggolan Irwana, Jeż Bartłomiej, Nabiałek Marcin, Musa Luqman, Sandu Andrei Victor, Vizureanu Petrica, Al Bakri Abdullah Mohd Mustafa, Kwiatkowski Dariusz, Wnuk Izabela
Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Perlis 01000, Malaysia.
Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis, Perlis 01000, Malaysia.
Materials (Basel). 2021 Apr 28;14(9):2276. doi: 10.3390/ma14092276.
The demand for natural fiber hybrid composites for various applications has increased, which is leading to more research being conducted on natural fiber hybrid composites due to their promising mechanical properties. However, the incompatibility of natural fiber with polymer matrix limits the performance of the natural fiber hybrid composite. In this research work, the mechanical properties and fiber-to-matrix interfacial adhesion were investigated. The efficiency of methyl methacrylate (MMA)-esterification treatments on composites' final product performance was determined. The composite was prepared using the hand lay-up method with varying kenaf bast fiber (KBF) contents of 10, 15, 20, 25, 30, 35 (weight%) and hybridized with glass fiber (GF) at 5 and 10 (weight%). Unsaturated polyester (UPE) resin and methyl ethyl ketone peroxide (MEKP) were used as binders and catalysts, respectively. Scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR) were used to examine the effects of MMA-esterification treatment on tensile strength and morphology (tensile fracture and characterization of MMA-esterification treatment) of the composite fabricated. The tensile strength of MMA-treated reinforced UPE and hybrid composites are higher than that of untreated composites. As for MMA treatment, 90 min of treatment showed the highest weight percent gain (WPG) and tensile strength of KBF-reinforced UPE composites. It can be concluded that the esterification of MMA on the KBF can lead to better mechanical properties and adhesion between the KFB and the UPE matrix. This research provides a clear reference for developing hybrid natural fibers, thus contributing to the current field of knowledge related to GF composites, specifically in transportation diligences due to their properties of being lightweight, superior, and involving low production cost.
各种应用对天然纤维混杂复合材料的需求不断增加，由于其具有良好的机械性能，这促使人们对天然纤维混杂复合材料开展更多研究。然而，天然纤维与聚合物基体的不相容性限制了天然纤维混杂复合材料的性能。在这项研究工作中，对其机械性能以及纤维与基体的界面黏附性进行了研究。确定了甲基丙烯酸甲酯（MMA）酯化处理对复合材料最终产品性能的影响。采用手糊法制备复合材料，其中红麻韧皮纤维（KBF）的含量分别为10%、15%、20%、25%、30%、35%（重量百分比），并与5%和10%（重量百分比）的玻璃纤维（GF）进行混杂。分别使用不饱和聚酯（UPE）树脂和过氧化甲乙酮（MEKP）作为粘结剂和催化剂。利用扫描电子显微镜（SEM）和傅里叶变换红外光谱（FTIR）来研究MMA酯化处理对所制备复合材料拉伸强度和形态（拉伸断裂及MMA酯化处理的表征）的影响。经MMA处理的增强UPE混杂复合材料的拉伸强度高于未处理的复合材料。对于MMA处理而言，90分钟的处理时间使KBF增强UPE复合材料的重量百分比增益（WPG）和拉伸强度达到最高。可以得出结论，MMA在KBF上的酯化能够带来更好的机械性能以及KFB与UPE基体之间的黏附性。本研究为开发混杂天然纤维提供了明确的参考，从而为当前与GF复合材料相关的知识领域做出贡献，特别是在交通运输领域，因为它们具有轻质、性能优越且生产成本低的特性。
