Pugazhenthi N, Anand P
Mechanical Engineering, Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology, Avadi, Chennai, Tamilnadu, India.
Heliyon. 2021 Dec 11;7(12):e08597. doi: 10.1016/j.heliyon.2021.e08597. eCollection 2021 Dec.
The world was in demand of wood products mainly for interior design, furniture making and household utilizes and at the same time agricultural residue usage was increased for making Engineering woods. Coconut is an abundant crop in Asia and coir fiber was extracted from coconut husk, as by-products. MDF was one of the by-products produced from coir reinforced with resin. In this work, the coconut coir was used to produce hybrid MDF with basalt fiber and phenol-formaldehyde resin hybridization. The panel was prepared with different coir and basalt fiber combinations by keeping a fixed resin percentage. The coir and basalt fiber percentage ranges from 40 to 75 % and 5-40 % respectively. SEM studied the morphological characteristic of the panel whereas thermal stability of the panel was evaluated through Thermo-gravimetric Analysis. The fire resistance was observed through a flammability test. The physical properties and mechanical properties were evaluated by ASTM Standards. From the investigations, the MoR and MoE have a higher value for Panel 3 with 29.14 N/mm and 3143 N/mm respectively and the internal bonding strength shows of 2.1 N/mm maximum values of mechanical properties. The result shows for panel 3 has 15 % and 18 % more strength for MoE and MoR respectively and IB also shows 35 % of increased value.
世界对木材产品的需求主要用于室内设计、家具制造和家庭用途，与此同时，用于制造工程木的农业残余物的使用量也有所增加。椰子是亚洲的一种丰富作物，椰壳纤维是从椰子壳中提取的副产品。中密度纤维板（MDF）是由椰壳纤维与树脂增强制成的副产品之一。在这项工作中，椰壳纤维被用于生产与玄武岩纤维和酚醛树脂杂交的混合中密度纤维板。通过保持固定的树脂百分比，用不同的椰壳纤维和玄武岩纤维组合制备板材。椰壳纤维和玄武岩纤维的百分比范围分别为40%至75%和5%至40%。扫描电子显微镜（SEM）研究了板材的形态特征，而通过热重分析评估了板材的热稳定性。通过燃烧性测试观察了耐火性。物理性能和机械性能按照美国材料与试验协会（ASTM）标准进行评估。从研究中可知，第3号板材的抗弯强度（MoR）和弹性模量（MoE）分别具有较高的值，分别为29.14 N/mm和3143 N/mm，内部结合强度显示机械性能的最大值为2.1 N/mm。结果表明，第3号板材的弹性模量和抗弯强度分别比其他板材高15%和18%，内部结合强度也显示出增加了35%。
