TY - JOUR ID - TI - Improved Wear Rate Resistance, Compression Strength and Hardness of Polymethylmethacrylate Resin with Orange Peel Powder for Artificial Denture Base AU - Reem A. Mohammed PY - 2020 VL - 38 IS - 3 part (A) Engineering SP - 308 EP - 318 JO - Engineering and Technology Journal مجلة الهندسة والتكنولوجيا SN - 16816900 24120758 AB - The material utilized for manufacturing artificial dentures should havehigh-grade mechanical properties in order to resist heavy forces inside themouth. This study includes investigation of some of the mechanicalproperties (wear rate resistance, compression strength, and hardness) ofthe specimens prepared by (hand lay-up) method. The wear behaviorexperiments were performed on (a pin-on-disk tester) under variousfactors 5%, 8%, 11%, 14%, 17% weight fraction of orange peel, (10, 15,20 N) load applied and (5, 10, 15 minutes) sliding time, and analysis theseexperimentally by using the Taguchi’s experimental design (L9) (MINITAB16). Tests explicated that the specimens (polymethylmethacrylate - 17%orange peel) composites have the best wear rate resistance, compressionstrength and hardness shore D (0.040×10-5cm3/N.mm, 142 MPa, 86 shoreD) respectively than other specimens (polymethylmethacrylate - 5%, 8%,11%, 14% wt. orange peel) and these specimens better than the specimensstandard polymethylmethacrylate, which could be attributed to thehomogeneous dispersion of orange peel particles in thepolymethylmethacrylate resin matrix. The results (signal to noise ratio)showed the factors (17% weight fraction) orange peels, (20 N) loadapplied, and (5 min) sliding time gives the best wear rate resistance. Theresults of the analysis of variance showed the sliding time (C) is theessential factor effect on the wear rate resistance followed by (A) weightfraction of orange peels and (B) load applied were less affected on wearbehavior rate

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