COMPARATIVE STUDY OF MECHANICAL PROPERTIES AND WATER ABSORPTION OF HYBRID UNSATURATED POLYESTER COMPOSITE REINFORCED BY CINNAMON STICKS AND BANANA PEEL POWDER WITH JUTE FIBER
Reem Alaa Mohammed* & Marwah Subhi Attallah
Department of Materials engineering, Technology of University, Iraq – Baghdad
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Thisiresearch intends to compare the flexural test, impact test, hardness shore D and water absorption for unsaturated polyester reinforced by 5% weight fraction fiber jute and different weight fractions (2%, 5%, 8%, and 11%) of cinnamon stick powder and banana peel powder. The hand lay-outitechnicality was utilized to fabricate these hybrid polymer composites. The recorded values were tabulated and statistically analyzed by using (SPSS 22) program, by using Tukey and Scheffe tests to determine the signification between the means of the test groups. The results display that the addition of cinnamon sticks powder and banana peel powder by (11% wt.) to unsaturated polyester resin – 5% wt. jute fiber improves the values of flexural strength, flexural modulus, toughness fracture, and hardness shore D, while this ratio weight fraction leads to a lower in the values of impact strength. The water absorption percentage of specimens increases with the increasing of the weight fraction of reinforcement material, but water absorption ratio decreases with decrease size particle, therefore, the specimens reinforced with cinnamon powder give water absorption percentage less than specimens reinforced with banana peels powder. The results of statistical analysis (SPSS) of mechanical properties and water absorption showed that the value of Sig was less than 0.05, which means that the addition of cinnamon powder and banana peel powder reinforced with jute fiber to unsaturated polyester was as positive.