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The morphology and flexural stress of surface treated and untreated kenaf fiber reinforced polypropylene composites

Husin, Muhammad Muslimin and Mustapa, Mohammad Sukri and Wahab, Md Saidin and Hashim, Mohd Yussni and Mohd Jais, Farhana Hazwanee (2017) The morphology and flexural stress of surface treated and untreated kenaf fiber reinforced polypropylene composites. International Journal of Mechanical & Mechatronics Engineering IJMME – IJENS, 16 (04). pp. 1-6. ISSN 2077124X

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Global demand for natural fiber polymer composites has increased due to the increase of population and new applications primarily in Malaysia today. Natural fiber polymer composites have been explored as alternatives by replacing wood fiber in producing various types of furniture that provide comfort with a practical strength and stability to fulfill society demand. The objective of this study is to investigate the effects of untreated and treated kenaf fiber (PP/KF) reinforcement on the flexural strength of Polypropylene. Flexural strengths of pure PP, 10%, and 20% of untreated KF by weight to PP have been recorded. In addition, flexural strengths of treated KF soaked with 5%, 10% and 20% of Sodium Hydroxide (NaOH) have also been recorded. PP/KF untreated and treated composites were melt blended and then injection molded for characterization to observe their flexural strengths by measuring their threshold. Three point bending test was carried out to determine the flexural stresses of the materials. The result show that treated specimen yields better flexural performance at 20% PP/KF compared to 10% and pure PP. Scanning Electron Microscopy (SEM) is used to observe the morphological characteristics of PP/KF. The good interfacial bonding between KF and PP is 5% NaOH due to the optimum strength of the structure. Overall 5% NaOH with 20% PP/KF show the best result compared to others with flexural stress value 3.25MPa.

Item Type: Article
Uncontrolled Keywords: Natural fiber polymer composites; NaOH; flexural; Polypropylene; kenaf fiber; SEM
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Mechanical Engineering Technology
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 13 Aug 2018 03:15
Last Modified: 13 Aug 2018 03:15
URI: http://eprints.uthm.edu.my/id/eprint/8954
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