Abstract:For the current work, investigations were carried out using treated betelnut fibre reinforced polyester (T-BFRP) and chopped strand mat glass fibre reinforced polyester (CSM-GFRP) composites. Results revealed that T-BFRP showed competitive performance of about 1.16 %, 17.39 % and 4.92 % for tensile, flexural and compression tests as compared to the latter. Through tribological performance tests, T-BFRP composite showed superiority in wear for the dry and wet tests of about 98 % and 90.8 % while friction coefficient was reduced by about 9.4 % and 80 % respectively. Interface temperature was low by about 17 % for T-BFRP composite subjected to dry test as compared to the latter. SEM analysis revealed that the brittle effects observed on glass fibres during the tribo test enhanced the material removal rate which increased the thermo mechanical effects at the rubbing zone. As such, evidence of adhesive to abrasive wear transition was observed when the CSM-GFRP composite was subjected to the stainless steel counterface. On the contrary, T-BFRP composite formed a thin layer of shield (i.e. back film transfer) on its worn surface during the test which assisted to lower the material removal rate.http://mc.manuscriptcentral.com/textile-research Through tribological performance tests, T-BFRP composite showed superiority in wear for the dry and wet tests of about 98 % and 90.8 % while friction coefficient was reduced by about 9.4 % and 80 % respectively. Interface temperature was low by about 17 % for T-BFRP composite subjected to dry test as compared to the latter. SEM analysis revealed that the brittle effects observed on glass fibres during the tribo test enhanced the material removal rate which increased the thermo mechanical effects at the rubbing zone. As such, evidence of adhesive to abrasive wear transition was observed when the CSM-GFRP composite was subjected to the stainless steel counterface. On the contrary, T-BFRP composite formed a thin layer of shield (i.e. back film transfer) on its worn surfaces during the test which assisted to lower the material removal rate.
The present work aims at exploring the possibility of using sustainable kenaf particles as particulate fillers and reinforcement in epoxy (KPafRE) composites. Kenaf particulate fillers of weight fractions (5-20 wt%) were used as reinforcement in the study of wear and friction performance of the composites. Adhesive dry tests were conducted on a Pin-on-Disc machine at applied loads (5-30 N) subjected to a stainless steel counterface with a sliding velocity of 2.83 m/s through sliding distances (0-6.72 km). From the findings, it was discovered that 15 wt% of KPafRE composite experienced superior in wear and frictional properties; the specific wear rate and friction coefficient was reduced by 67% and 56%, respectively, as compared to neat epoxy. Photo micrographs of the worn samples revealed that there was a significant amount of back film transfer, which assisted in enhancing the wear and frictional performance of the composites.Polymer-based materials have replaced metal parts in many industrial applications, such as in the manufacturing of airplanes and cars. 1 They possess advantages of lower density, less maintenance and lower cost. 2,3 Thermosetting polymers are the materials of choice as they have been in use in many applications for being infusible, giving high density and being insoluble. 4 Incorporating renewable resources of plant or animalbased fiber into thermosetting polymer composites has received great attention since it has emerged as being environmentally friendly and cost-effective. Moreover, these natural fibers are available abundantly in nature, which could highly fulfill the demand of scientists and engineers to use them effectively. Natural fibers offer brilliant structural and functional features with high specific stiffness and specific strength to fiber-reinforced composites due to their unique combinations of properties. 5 Significant attention had been paid to natural fibers in many applications, such as aerospace industries, 6 household applications, 7 furniture, the construction industry for lower load capacity applications, packing and automobiles. 8-13 Natural fibers are quickly becoming an attractive substitute over synthetic fibers because of their superior virtues, such as light weight and high stiffness and specific strength.
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