Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite
Ultrahigh-molecular-weight polyethylene/high-density polyethylene (UHMWPE/HDPE) blends prepared using polyethylene glycol PEG as the processing aid and hydroxyapatite (HA) as the reinforcing filler were found to be highly processable using conventional melt blending technique. It was demonstrated th...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/474851 |
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| author | Mazatusziha Ahmad Mat Uzir Wahit Mohammed Rafiq Abdul Kadir Khairul Zaman Mohd Dahlan |
| author_facet | Mazatusziha Ahmad Mat Uzir Wahit Mohammed Rafiq Abdul Kadir Khairul Zaman Mohd Dahlan |
| author_sort | Mazatusziha Ahmad |
| collection | DOAJ |
| description | Ultrahigh-molecular-weight polyethylene/high-density polyethylene (UHMWPE/HDPE) blends prepared using polyethylene glycol PEG as the processing aid and hydroxyapatite (HA) as the reinforcing filler were found to be highly processable using conventional melt blending technique. It was demonstrated that PEG reduced the melt viscosity of UHMWPE/HDPE blend significantly, thus improving the extrudability. The mechanical and bioactive properties were improved with incorporation of HA. Inclusion of HA from 10 to 50 phr resulted in a progressive increase in flexural strength and modulus of the composites. The strength increment is due to the improvement on surface contact between the irregular shape of HA and polymer matrix by formation of mechanical interlock. The HA particles were homogenously distributed even at higher percentage showed improvement in wetting ability between the polymer matrix and HA. The inclusion of HA enhanced the bioactivity properties of the composite by the formation of calcium phosphate (Ca-P) precipitates on the composite surface as proven from SEM and XRD analysis. |
| format | Article |
| id | doaj-art-d009148111d144aa948b160194d6a2a5 |
| institution | DOAJ |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-d009148111d144aa948b160194d6a2a52025-08-20T03:19:43ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/474851474851Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and HydroxyapatiteMazatusziha Ahmad0Mat Uzir Wahit1Mohammed Rafiq Abdul Kadir2Khairul Zaman Mohd Dahlan3Department of Polymer Engineering, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Johor, 81310 Skudai, MalaysiaDepartment of Polymer Engineering, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Johor, 81310 Skudai, MalaysiaDepartment of Biomechanics and Biomedical Materials, Faculty of Biomedical Engineering and Health Science, Universiti Teknologi Malaysia, Johor, 81310 Skudai, MalaysiaDivision of Radiation Processing Technology, Malaysian Nuclear Agency, Selangor, Bangi, 43000 Kajang, MalaysiaUltrahigh-molecular-weight polyethylene/high-density polyethylene (UHMWPE/HDPE) blends prepared using polyethylene glycol PEG as the processing aid and hydroxyapatite (HA) as the reinforcing filler were found to be highly processable using conventional melt blending technique. It was demonstrated that PEG reduced the melt viscosity of UHMWPE/HDPE blend significantly, thus improving the extrudability. The mechanical and bioactive properties were improved with incorporation of HA. Inclusion of HA from 10 to 50 phr resulted in a progressive increase in flexural strength and modulus of the composites. The strength increment is due to the improvement on surface contact between the irregular shape of HA and polymer matrix by formation of mechanical interlock. The HA particles were homogenously distributed even at higher percentage showed improvement in wetting ability between the polymer matrix and HA. The inclusion of HA enhanced the bioactivity properties of the composite by the formation of calcium phosphate (Ca-P) precipitates on the composite surface as proven from SEM and XRD analysis.http://dx.doi.org/10.1100/2012/474851 |
| spellingShingle | Mazatusziha Ahmad Mat Uzir Wahit Mohammed Rafiq Abdul Kadir Khairul Zaman Mohd Dahlan Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite The Scientific World Journal |
| title | Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite |
| title_full | Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite |
| title_fullStr | Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite |
| title_full_unstemmed | Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite |
| title_short | Mechanical, Rheological, and Bioactivity Properties of Ultra High-Molecular-Weight Polyethylene Bioactive Composites Containing Polyethylene Glycol and Hydroxyapatite |
| title_sort | mechanical rheological and bioactivity properties of ultra high molecular weight polyethylene bioactive composites containing polyethylene glycol and hydroxyapatite |
| url | http://dx.doi.org/10.1100/2012/474851 |
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