Influence of the stacking sequence and coconut husk micro fillers on the drilling parameters of coconut leaf sheath/glass/jute fiber hybrid phenol formaldehyde composites

The interest in natural fiber reinforced polymer composites materials is rapidly growing both in terms of their industrial application and fundamental research. They are renewable, cheap, completely, or partially recyclable and biodegradable. Plants, such as wood, used from time immemorial as sources of lignocel-luloses' fibers, are more and more often applied as reinforcement of composites. The purposes of this study are to evaluate the thrust force and delamination factor of hybrid composites and improve the per-formance by alkaline treatment. The coconut fiber were washed, dried, and soaked in NaOH for one day then composite was prepared by CLS and glass and jute fiber with phenol formaldehyde resin. The drilling tests were conducted to find the thrust force and after drilling to find the delamination factor by using toolmaker microscope. The analysis of different stacking sequence composites by Taguchi technique and result of all tests are discussed and finally, the result is present and concluding remarks are addressed and discussed in detail.Copyright (c) 2021 Elsevier Ltd. All rights reserved.Selection and peer-review under responsibility of the scientific committee of the 2021 Research, Inven-tion, and Innovation Congress: Materials Science.