Impact test and bioactivity properties of polycaprolactone (PCL) by addition of nano-montmorillonite (MMT) and hydroxyapatite (HA)

Abdul Haq, Reazul Haq and Wahab, Md Saidin and Wahit, Mat Uzir (2013) Impact test and bioactivity properties of polycaprolactone (PCL) by addition of nano-montmorillonite (MMT) and hydroxyapatite (HA). In: 2013 Asia Conference on Mechanical and Materials Engineering (ACMME), 8-9 October 2013, Wuhan, China.

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Abstract

This report described the Impact Test result and Bioactivity Properties of biodegradable Polycaprolactone (PCL) blend with nano- Montmorillonite (MMT) Hydroxyapatite (HA). The amount of nano-MMT is varies from 2 to 4 by weight % meanwhile the amount of HA is fixed to 10 by weight percentage (wt%). The addition of nano-MMT and HA filler is to tune and indirectly improve the mechanical and bioactive properties of PCL. The samples for these test are injected from injection molding machine. The Impact test are conducted using Charpy Method. From the analysis it is found that the toughness of PCL are decreased by the addition of these fillers. PCL/MMT composites gives a better result compare to PCL/MMTlHA composites. This is due to the HA characteristic which is brilttle and tends to reduce the ductile properties of the polymer. From the Simulated Body Fluis (SBF) result, formation of apatite layer at the surface of the composites is evidence of excellent bioactivity properties of HA. The enhance of bioactivity has been proved while incorporation of HA into PCLMMT composite. SEM-EDX image showed the bulk formation of apatite layers on the composite surface with 10 wt% HA after 3 days immersed in SBF solution.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:polycaprolactone (PCL); montmorillonite (MMT); hydroxyapatite (HA); nano-single screw extruder; simulated body fluid (SBF); charpy impact test
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 Manufacturing and Industrial Engineering
ID Code:4487
Deposited By:Normajihan Abd. Rahman
Deposited On:01 Nov 2013 15:23
Last Modified:21 Jan 2015 15:26

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