Dollah, Siti Norshamimi (2019) Friction and wear properties of polymer composite matrix made by tapioca starch. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)
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Abstract
The main purpose of the study is to investigate the friction and wear properties of polymer matrix composite made by tapioca starch as well as to prepare and characterized them at different starch percentage. Polypropylene (PP) mixed tapioca starch were prepared using Hot Press Machine in various weight percentage concentrations ranging from 0%, 10%, 20% and 30% of starch filler. The results from the sample preparation shows that the colour of sample formed is lighter as the starch percentage increased. Then the mechanical properties such as hardness and roughness properties were determined by using Shore Durometer and Hand-held Roughness Tester respectively. Both hardness and roughness properties were found to increase linearly with increasing starch concentration up to 30 wt%. The presence of tapioca starch in PP was found to have positive effect to the hardness and roughness properties. Next, the tribology properties of coefficient of friction (COF) and wear rate were determined with a computerized pin-on-disc wear and friction tester at dry sliding condition. 3D Non-Contact Profilometer also were used to measure the wear scar diameter and wear depth. It was observed that higher starch percentage in PP, lowered the average COF of the composite under dry conditions however the COF increased rapidly at 30 wt% of starch. As for specific wear rate, the result cames up to decreased when the starch percentage increased. Microstructure analysis has been utilized to support the discussion of the output. The results showed that, the addition of tapioca starch into PP matrix increased the wear resistance by decreasing the wear rate by 14.17% and reduced the COF by 20.67%.
| Item Type: | Final Year Project (Project Report) |
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| Uncontrolled Keywords: | Polymeric Composites |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Library > Final Year Project > FKM |
| Depositing User: | Norfaradilla Idayu Ab. Ghafar |
| Date Deposited: | 10 Nov 2020 07:59 |
| Last Modified: | 10 Apr 2025 08:27 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/24757 |
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