Optimısatıon Of Injectıon Moulded Hıgh Densıty Polyethylene-Sawdust Composıte (Percentage Elongatıon And Average Deflectıon)

Authors : Cyril ALİYEGBENOMA, Mercy OZAKPOLOR

Pages : 99-108

View : 13 | Download : 5

Publication Date : 2020-09-28

Article Type : Research Paper

Abstract :The focus of this study is on the modeling and optimisation of percentage elongation and average deflection using injection moulded high density polyethylene-Sawdust composite. The HDPE material and sawdust were mixed together to form a homogenous mixture with various percentage composition by volume as obtained by the central composite design insert ignore into journalissuearticles values(CCD);. The response surface methodology insert ignore into journalissuearticles values(RSM); and artificial neural networks insert ignore into journalissuearticles values(ANN); were used to determine the effect of the interaction of temperature and percentage by volume of material on the mechanical properties of the produced HDPE-sawdust composite. Models were developed for predicting the mechanical properties percentage elongation and average deflection); for the produced composites. The models were validated using coefficient of determination insert ignore into journalissuearticles values(R2);. The coefficient of determination insert ignore into journalissuearticles values(R2); obtained ranged from 0.9213 insert ignore into journalissuearticles values(92.13%); to 0.981 insert ignore into journalissuearticles values(98.10%); which indicates a good fit was achieved between the model and experimental results. The optimization results for HDPE-Sawdust composites shows that the percentage elongation and average deflection were minmized with values of 90.98% and 2.46cm obtained at barrel temperature of 164.64 oC and polymer level of 68.54%.
Keywords : Central composite design, Composite, Modeling, High density polyethylene, Sawdust