Mechanical and delamination studies on siliconized chitosan and morinda‐citrifolia natural fiber‐reinforced epoxy composite in drilling,Polymer Composites

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Mechanical and delamination studies on siliconized chitosan and morinda‐citrifolia natural fiber‐reinforced epoxy composite in drilling
Polymer Composites ( IF 4.8 ) Pub Date : 2020-09-28 , DOI: 10.1002/pc.25817
Manikandan G ₁ , Jaiganesh V ₂ , Ravi Raja Malarvannan R ₃ , Arun Prakash VR ₂

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In this research, the effect of siliconized chitosan biopolymeric particles and morinda fiber in epoxy composite and their mechanical and machining behavior were studied. The primary aim of this research was to investigate how the silane‐treatment influences the surfaces of natural biopolymeric particle and fiber in epoxy composite and to study the mechanical and machining behavior. The chitosan and morinda fibers were surface‐treated using an amino silane 3‐Aminopropyltrimethoxylane (APTMS) via aqueous solution method. The composites were prepared using the hand lay‐up method followed by post‐curing at 120^οC. The mechanical results showed that the silane surface‐treated chitosan and morinda natural fiber‐reinforced epoxy composite gives improved tensile, flexural and impact results of 148 MPa, 163Mpa and 6.9 J respectively. The inter‐laminar shear strength of silane‐treated morinda fiber gave the highest value of 28 MPa. Similarly, in the drilling process, the surface‐treated reinforcements showed the highest adhesion with matrix without any delamination. The drilled hole dimension stability at the top and the bottom surface was significantly high for silane‐treated epoxy composites. The scanning electron microscope images revealed high adhesion of fiber and uniform dispersion of chitosan particle in the epoxy matrix. Hence, this study confirms that silane surface‐treatment is an essential process while making high‐performance natural composites for various engineering applications.

中文翻译：

硅化壳聚糖和莫林达-伞杉天然纤维增强环氧复合材料的机械和分层研究

在这项研究中，研究了硅化的壳聚糖生物聚合物颗粒和morinda纤维在环氧复合材料中的作用及其机械和加工性能。这项研究的主要目的是研究硅烷处理如何影响环氧复合材料中天然生物聚合物颗粒和纤维的表面，并研究其机械性能和加工性能。使用氨基硅烷3-氨基丙基三甲氧基lane（APTMS）通过水溶液法对壳聚糖和莫林达纤维进行了表面处理。复合材料的制备采用手工铺层方法，然后在120 ^o进行后固化C.力学结果表明，硅烷表面处理的壳聚糖和莫林达天然纤维增强环氧复合材料的拉伸，挠曲和冲击结果分别提高了148 MPa，163Mpa和6.9J。硅烷处理的莫林达纤维的层间剪切强度最高，为28 MPa。同样，在钻孔过程中，经表面处理的增强材料与基质的粘合力最高，没有分层。对于硅烷处理的环氧复合材料，其顶部和底部表面的钻孔尺寸稳定性非常高。扫描电子显微镜图像显示纤维的高粘附性和壳聚糖颗粒在环氧基质中的均匀分散。因此，

更新日期：2020-09-28

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