Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq
In this study, characterization and development of polymer nanocomposites filament wire for Fused Deposition Modelling (FDM) was investigated. The polycaprolactone (PCL) filled montmorillonite (MMT) and Hydroxyapaptite (HA) composites were prepared by melting and compounding using a single screw...
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| Format: | Thesis |
| Language: | English English English |
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2015
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| Online Access: | http://eprints.uthm.edu.my/10795/1/24p%20REAZUL%20HAQ%20ABDUL%20HAQ.pdf http://eprints.uthm.edu.my/10795/2/REAZUL%20HAQ%20ABDUL%20HAQ%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/10795/3/REAZUL%20HAQ%20ABDUL%20HAQ%20WATERMARK.pdf |
| _version_ | 1811134669867974656 |
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| author | Abdul Haq, Raezul Haq |
| author_facet | Abdul Haq, Raezul Haq |
| author_sort | Abdul Haq, Raezul Haq |
| collection | UTHM |
| description | In this study, characterization and development of polymer nanocomposites filament
wire for Fused Deposition Modelling (FDM) was investigated. The polycaprolactone
(PCL) filled montmorillonite (MMT) and Hydroxyapaptite (HA) composites were
prepared by melting and compounding using a single screw extruder. The
mechanical properties were assessed by tensile, flexural and charpy impact tests
while the thermal properties were studied via differential scanning calorimetry
(DSC) and thermogravimetry analyzer (TGA). Simulated body fluid (SBF) test was
used to assess the bioactivity properties of the composites. The filament wire with
the diameter of 1.75+0.05 were fabricated using a single screw extruder with die hole
1.6 mm in diameter. Design of experiment (DOE) software was used to find the
optimum setting for the screw speed, roller speed and die temperature in order to
achieve the specific diameter of the filament wire. The flexural strength, elastic
modulus and flexural modulus of PCL/MMT blends increased with the decrement of
tensile strength and impact strength. Apparently, the inclusion of HA upon PCL/
MMT composite shows a slight improvement in elastic modulus, flexural modulus
and flexural strength with reduction of impact strength. Addition of MMT and HA
enhanced the thermal stability and the decomposition temperature of the composites.
Formation of apatite crystals on the PCL/MMT/HA composites surfaces confirmed
the occurrence of bioactive properties. Composites with 3 wt.% of MMT and 10
wt.% of HA were chosen as optimum composition in terms of strength and bioactive
properties to be fabricated as filament wire for FDM process. The optimum
parameter setting to produce 1.75+0.05 of filament wire was successfully found at
screw speed of 7.30 Hz, roller speed of 4.3 rpm and die temperature of 90°C. The
characteristic of the FDM process shows that the samples with optimum dimensional
accuracy and relative density was found at room temperature and 80°C of platform
and nozzle temperature respectively. The composites with 3 wt.% of MMT and 10
wt.% of HA samples produced from the FDM process show an improvement in
elastic modulus and impact strength compared to samples prepared by injection
molding process. |
| first_indexed | 2024-09-24T00:08:35Z |
| format | Thesis |
| id | uthm.eprints-10795 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English English English |
| last_indexed | 2024-09-24T00:08:35Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | uthm.eprints-107952024-05-13T06:54:17Z http://eprints.uthm.edu.my/10795/ Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq Abdul Haq, Raezul Haq T Technology (General) In this study, characterization and development of polymer nanocomposites filament wire for Fused Deposition Modelling (FDM) was investigated. The polycaprolactone (PCL) filled montmorillonite (MMT) and Hydroxyapaptite (HA) composites were prepared by melting and compounding using a single screw extruder. The mechanical properties were assessed by tensile, flexural and charpy impact tests while the thermal properties were studied via differential scanning calorimetry (DSC) and thermogravimetry analyzer (TGA). Simulated body fluid (SBF) test was used to assess the bioactivity properties of the composites. The filament wire with the diameter of 1.75+0.05 were fabricated using a single screw extruder with die hole 1.6 mm in diameter. Design of experiment (DOE) software was used to find the optimum setting for the screw speed, roller speed and die temperature in order to achieve the specific diameter of the filament wire. The flexural strength, elastic modulus and flexural modulus of PCL/MMT blends increased with the decrement of tensile strength and impact strength. Apparently, the inclusion of HA upon PCL/ MMT composite shows a slight improvement in elastic modulus, flexural modulus and flexural strength with reduction of impact strength. Addition of MMT and HA enhanced the thermal stability and the decomposition temperature of the composites. Formation of apatite crystals on the PCL/MMT/HA composites surfaces confirmed the occurrence of bioactive properties. Composites with 3 wt.% of MMT and 10 wt.% of HA were chosen as optimum composition in terms of strength and bioactive properties to be fabricated as filament wire for FDM process. The optimum parameter setting to produce 1.75+0.05 of filament wire was successfully found at screw speed of 7.30 Hz, roller speed of 4.3 rpm and die temperature of 90°C. The characteristic of the FDM process shows that the samples with optimum dimensional accuracy and relative density was found at room temperature and 80°C of platform and nozzle temperature respectively. The composites with 3 wt.% of MMT and 10 wt.% of HA samples produced from the FDM process show an improvement in elastic modulus and impact strength compared to samples prepared by injection molding process. 2015-06 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/10795/1/24p%20REAZUL%20HAQ%20ABDUL%20HAQ.pdf text en http://eprints.uthm.edu.my/10795/2/REAZUL%20HAQ%20ABDUL%20HAQ%20COPYRIGHT%20DECLARATION.pdf text en http://eprints.uthm.edu.my/10795/3/REAZUL%20HAQ%20ABDUL%20HAQ%20WATERMARK.pdf Abdul Haq, Raezul Haq (2015) Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq. Doctoral thesis, Universiti Tun Hussein Onn Malaysia. |
| spellingShingle | T Technology (General) Abdul Haq, Raezul Haq Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq |
| title | Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq |
| title_full | Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq |
| title_fullStr | Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq |
| title_full_unstemmed | Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq |
| title_short | Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process / Raezul Haq Abdul Haq |
| title_sort | characterization and development of polycaprolactone pcl montmorillonite mmt hydroxapaptite ha nano composites for fused deposition modelling fdm process raezul haq abdul haq |
| topic | T Technology (General) |
| url | http://eprints.uthm.edu.my/10795/1/24p%20REAZUL%20HAQ%20ABDUL%20HAQ.pdf http://eprints.uthm.edu.my/10795/2/REAZUL%20HAQ%20ABDUL%20HAQ%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/10795/3/REAZUL%20HAQ%20ABDUL%20HAQ%20WATERMARK.pdf |
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