SPLIT-SPLIT PLOT ANALYSIS OF THE EFFECTS OF PROCESS PARAMETERS IN THE PRODUCTION OF POLYVINYL CHLORIDE-GRASS COMPOSITE

Abstract

The interaction of process parameters in the production of polyvinyl chloride-grass composite poses great challenges in the polymeric industries. Most manufacturing processes of injection moulded polyvinyl chloride-grass composite products have been by trial and error due to inadequate knowledge in process parameters and their interactions. This study investigates the effects of process parameters such as percentage by volume of material, material type, barrel temperature and their interactions on the mechanical properties of the produced polyvinyl chloride-grass composite using split-split plot design. The results of the calculated Fisher’s ratio (F_cal) at significant value of 0.05 for the process parameters and their interactions ranges from -855.35 to 1.00, and were presented on ANOVA table. The results obtained shows that these process parameters contribute significantly to the production of Polyvinyl chloride-grass composite in polymeric industries.

Keywords

• Mechanical properties,Polyvinyl Chloride-Grass composite,Process parameters

References

1. [1]Goldsmith, CH; Gaylor, DW. Three stage nested designs for estimating variance components. Journal of Technometrics, vol.12, pp.487-498, 1970. [2] Olodu, D.D; Osarenmwinda, J.O. Effects of Process Parameters in the Production of High Density Polyethylene-Grass Composite. Journal of Applied Sciences and Environmental management, Vol. 22, No 9, page 1479-1483, 2018. [3]Avilles, A.I; Pinheiro, J.C. Optimal Design for Mixed Effects Models with two Random Nested Factors. Journal of Statistical Sinica, vol.13, pp.385-401, 2015. [4]Loeza, S; Donev, A.N. Construction of Experimental Design to estimate Variance Components. Journal of Computational Statistics and Data Analysis, vol.71, pp.1168–1177, 2014. [5]Ankenman, B.E; Liu, H; Karr, AF; Picka, J.D. A Class of Experimental Designs for Estimating a Response Surface and Variance Components. Journal of Technometrics, vol.44, pp.45-54, 2001. [6]Chunping, D; Changing. Y; Cheng, Z. Theoretical Modeling of Bonding Characteristics and Performance of Wood Composites of Inter-element Contact. Journal of Wood and Fiber Science, vol.39, pp.48-55, 2007. [7]Adeyemi, S.O; Adeyemi, M.B. Temperature Effect on Extrusion Moulded Plastic. International Journal of Materials and Product Technology, vol. 5, No 6, pp.300-311, 2016. [8]Olodu, D.D. Modelling and Development of Injection Moulded Plastic-Grass Composites. PhD Thesis, Department of Production Engineering, Faculty of Engineering,University of Benin, Nigeria, 2017. [9]Osaremwinda, J.O; Olodu, D.D. Effects of Barrel Temperature on the Mechanical Properties of Injection Moulded Product. .Nigeria Journal of Technology (NIJOTECH), Vol. 34, No.2, pp.292-296, 2015. [10]Goos, P; Vandebroek, M. D-optimal Split-Plot Designs with Given Numbers and Sizes of Whole Plots. Journal of Technometrics, vol.45, pp.235-245, 2003 [11]Harless, TE; Wagner, PH; Short, RD; Seale, PH; Mitchell, D. A model to Predict the Density Profile of Particleboard. Journal of Wood and Fiber Science, vol.19, pp81- 92, 1987. [12]Edelugo, S.O. Effects of Reinforcements Combination on the Mechanical Strength of Glass Reinforced Plastic under Increased Temperature Conditions. Nigeria Journal of Technology, vol.23, No. 1, pp.39-47, 2004.