Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite

The consumption of plastic materials has been increasing and the accumulation of plastic at the end of its life cycle has also increased on the earth. This causes a big waste disposal and pollution problem. Therefore, this motivated many researchers to conduct studies to produce a polymer which is b...

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Main Author:	Shamini, Vesaya Kumaran
Format:	Undergraduates Project Papers
Language:	English
Published:	2014
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/9191/ http://umpir.ump.edu.my/id/eprint/9191/ http://umpir.ump.edu.my/id/eprint/9191/1/cd8665.pdf

id	ump-9191
recordtype	eprints
spelling	ump-91912015-10-15T00:09:22Z http://umpir.ump.edu.my/id/eprint/9191/ Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite Shamini, Vesaya Kumaran TP Chemical technology The consumption of plastic materials has been increasing and the accumulation of plastic at the end of its life cycle has also increased on the earth. This causes a big waste disposal and pollution problem. Therefore, this motivated many researchers to conduct studies to produce a polymer which is biodegradable and environmental friendly and at the same time has improved properties to produce plastics. Polymer nanocomposites have gained the greatest interest in this issue since few years. Polycaprolactone (PCL) as the polymer and Sodium montmorillonite (Na-MMT) a type of nanoclay as the inorganic nanofiller is used in this study. However, the polymer matrix and the nanoclay surface are not compatible because the inorganic Na-MMT is hydrophilic and PCL is hydrophobic. Thus, the main aim of this study is to develop a new modification method for dispersing the nanofiller into PCL nanocomposite and to fabricate PCL nanocomposite. The surface of Na-MMT was modified from inorganic to organic through surfactant method by reacting Aminopropylisooctyl Polyhedral Oligomeric Silsesquioxane (AP-POSS) surfactant with Na-MMT and the fabrication of PCL nanocomposite was then done through solution intercalation technique with both modified and unmodified nanoclay of different weight percentages. The structure and morphology of pure nanoclay, modified nanoclay (POSS-MMT) and the PCL nanocomposite were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Field Emission Scanning Electron Microscopy (FESEM). XRD revealed that the d-spacing of the POSS-MMT is increased by 0.64 nm as compared to Na-MMT. FTIR and FESEM results also showed that AP-POSS were well dispersed and intercalated throughout the interlayer space of Na-MMT. An exfoliated structure was also observed for PCL/POSS-MMT nanocomposite. Thermal properties of the nanocomposite were investigated using Differential Scanning Calorimetry (DSC) analysis which showed highest melting and crystallization temperature in PCL/POSS-MMT 5% nanocomposite which is 56.6˚C and 32.7˚C respectively whereas a lower degree of crystallinity for PCL/POSS-MMT nanocomposite as compared to PCL/Na-MMT nanocomposite and Thermogravimetric Analysis (TGA) recorded the highest degradation temperature in PCL/POSS-MMT 1% nanocomposite which is 394.1˚C at 50% weight loss (T50%) but a decrease in degradation temperature when POSS-MMT content is increased. Mechanical properties of the nanocomposite were analysed through tensile testing and the results indicated the highest Young’s Modulus and tensile strength for PCL/POSS-MMT 3% nanocomposite which is 87 MPa and 2.64 MPa respectively while the lowest elongation at break in PCL/POSS-MMT 1% nanocomposite which is 138%. This study affords an efficient modification method to obtain organoclay with larger interlayer d-spacing to enhance the properties of polymer nanocomposite 2014-07 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9191/1/cd8665.pdf Shamini, Vesaya Kumaran (2014) Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:84774&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Shamini, Vesaya Kumaran Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite
description	The consumption of plastic materials has been increasing and the accumulation of plastic at the end of its life cycle has also increased on the earth. This causes a big waste disposal and pollution problem. Therefore, this motivated many researchers to conduct studies to produce a polymer which is biodegradable and environmental friendly and at the same time has improved properties to produce plastics. Polymer nanocomposites have gained the greatest interest in this issue since few years. Polycaprolactone (PCL) as the polymer and Sodium montmorillonite (Na-MMT) a type of nanoclay as the inorganic nanofiller is used in this study. However, the polymer matrix and the nanoclay surface are not compatible because the inorganic Na-MMT is hydrophilic and PCL is hydrophobic. Thus, the main aim of this study is to develop a new modification method for dispersing the nanofiller into PCL nanocomposite and to fabricate PCL nanocomposite. The surface of Na-MMT was modified from inorganic to organic through surfactant method by reacting Aminopropylisooctyl Polyhedral Oligomeric Silsesquioxane (AP-POSS) surfactant with Na-MMT and the fabrication of PCL nanocomposite was then done through solution intercalation technique with both modified and unmodified nanoclay of different weight percentages. The structure and morphology of pure nanoclay, modified nanoclay (POSS-MMT) and the PCL nanocomposite were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Field Emission Scanning Electron Microscopy (FESEM). XRD revealed that the d-spacing of the POSS-MMT is increased by 0.64 nm as compared to Na-MMT. FTIR and FESEM results also showed that AP-POSS were well dispersed and intercalated throughout the interlayer space of Na-MMT. An exfoliated structure was also observed for PCL/POSS-MMT nanocomposite. Thermal properties of the nanocomposite were investigated using Differential Scanning Calorimetry (DSC) analysis which showed highest melting and crystallization temperature in PCL/POSS-MMT 5% nanocomposite which is 56.6˚C and 32.7˚C respectively whereas a lower degree of crystallinity for PCL/POSS-MMT nanocomposite as compared to PCL/Na-MMT nanocomposite and Thermogravimetric Analysis (TGA) recorded the highest degradation temperature in PCL/POSS-MMT 1% nanocomposite which is 394.1˚C at 50% weight loss (T50%) but a decrease in degradation temperature when POSS-MMT content is increased. Mechanical properties of the nanocomposite were analysed through tensile testing and the results indicated the highest Young’s Modulus and tensile strength for PCL/POSS-MMT 3% nanocomposite which is 87 MPa and 2.64 MPa respectively while the lowest elongation at break in PCL/POSS-MMT 1% nanocomposite which is 138%. This study affords an efficient modification method to obtain organoclay with larger interlayer d-spacing to enhance the properties of polymer nanocomposite
format	Undergraduates Project Papers
author	Shamini, Vesaya Kumaran
author_facet	Shamini, Vesaya Kumaran
author_sort	Shamini, Vesaya Kumaran
title	Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite
title_short	Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite
title_full	Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite
title_fullStr	Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite
title_full_unstemmed	Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite
title_sort	development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/9191/ http://umpir.ump.edu.my/id/eprint/9191/ http://umpir.ump.edu.my/id/eprint/9191/1/cd8665.pdf
first_indexed	2023-09-18T22:07:30Z
last_indexed	2023-09-18T22:07:30Z
_version_	1777414806710517760

Development of new method for dispersing nanofillers in polycaprolactone (pcl) nanocomposite

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