Loganathan Tamil Moli, Hameed Sultan Mohamed Thariq, Ahsan Qumrul, Jawaid Mohammad, Naveen Jesuarockiam, Md Shah Ain Umaira, Abu Talib Abd Rahim, Basri Adi Azriff, Jaafar Che Nor Aiza
Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia.
Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia.
Nanomaterials (Basel). 2021 Nov 12;11(11):3049. doi: 10.3390/nano11113049.
This research focuses on evaluating the effect of (CR) fiber and the impact of adding multi-walled carbon nanotubes (MWCNT) on the morphological, physical, mechanical, and flammability properties of phenolic composites. MWCNT were supplemented with phenolic resin through a dry dispersion ball milling method. Composites were fabricated by incorporating CR fiber in 0.5 wt.% MWCNT-phenolic matrix by hot pressing. Nevertheless, the void content, higher water absorption, and thickness swelling increased with fiber loading to the MWCNT/phenolic composites. The presence of MWCNT in phenolic enhanced the tensile, flexural, and impact strength by as much as 18%, 8%, and 8%, respectively, compared to pristine phenolic. The addition of CR fiber, however, strengthened MWCNT-phenolic composites, improving the tensile, flexural, and impact strength by as much as 16%, 16%, and 266%, respectively, for 50 wt.% loading of CR fiber. The CR fiber may adhere properly to the matrix, indicating that there is a strong interface between fiber and MWCNT-phenolic resin. UL-94 horizontal and limiting oxygen index (LOI) results indicated that all composite materials are in the category of self-extinguishing. Based on the technique for order preference by similarity to the ideal solution (TOPSIS) technique, 50 wt.% CR fiber-reinforced MWCNT-phenolic composite was chosen as the optimal composite for mechanical and flammability properties. This bio-based eco-friendly composite has the potential to be used as an aircraft interior component.
本研究着重评估（CR）纤维的效果以及添加多壁碳纳米管（MWCNT）对酚醛复合材料的形态、物理、机械和燃烧性能的影响。MWCNT通过干式分散球磨法添加到酚醛树脂中。通过热压将CR纤维以0.5 wt.%的比例掺入MWCNT - 酚醛基体中来制备复合材料。然而，MWCNT/酚醛复合材料的孔隙率、吸水率和厚度膨胀率随纤维含量的增加而增大。与原始酚醛相比，酚醛中MWCNT的存在分别使拉伸强度、弯曲强度和冲击强度提高了18%、8%和8%。然而，添加CR纤维增强了MWCNT - 酚醛复合材料，对于50 wt.%的CR纤维含量，拉伸强度、弯曲强度和冲击强度分别提高了16%、16%和266%。CR纤维可能与基体良好粘结，表明纤维与MWCNT - 酚醛树脂之间存在强界面。UL - 94水平燃烧和极限氧指数（LOI）结果表明所有复合材料均属于自熄类别。基于与理想解相似的偏好排序技术（TOPSIS），50 wt.% CR纤维增强的MWCNT - 酚醛复合材料被选为机械性能和燃烧性能最佳的复合材料。这种生物基环保复合材料有潜力用作飞机内部部件。
