Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets
Polylactic acid and novel nanoplatelets of hydroxyapatite (HANP) were compounded in a laboratory scale twin-screw extruder and injection moulded to shape. The effect of HANP loading content, between 1 wt% and 10 wt%, and of HANP surface coating with tailored molecular dispersants, on the processabil...
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| Format: | Conference or Workshop Item |
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2016
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| Online Access: | https://eprints.nottingham.ac.uk/39149/ |
| _version_ | 1848795775145869312 |
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| author | Tomczynska, Magdalena M. Choong, Gabriel Y.H. De Focatiis, Davide S.A. Grant, David M. Parsons, Andrew J. |
| author_facet | Tomczynska, Magdalena M. Choong, Gabriel Y.H. De Focatiis, Davide S.A. Grant, David M. Parsons, Andrew J. |
| author_sort | Tomczynska, Magdalena M. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Polylactic acid and novel nanoplatelets of hydroxyapatite (HANP) were compounded in a laboratory scale twin-screw extruder and injection moulded to shape. The effect of HANP loading content, between 1 wt% and 10 wt%, and of HANP surface coating with tailored molecular dispersants, on the processability and rheological behaviour were investigated. Dispersion of HANP within the matrix system was determined qualitatively using transmission electron micrographs. Surface coating of HANP with dispersants was observed to change the state of HANP dispersion in the nanocomposites. This was also reflected in the changes of the nanocomposites’ rheological response with the moduli of coated HANP systems increasing at lower frequencies. |
| first_indexed | 2025-11-14T19:37:26Z |
| format | Conference or Workshop Item |
| id | nottingham-39149 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:37:26Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-391492020-05-04T18:14:48Z https://eprints.nottingham.ac.uk/39149/ Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets Tomczynska, Magdalena M. Choong, Gabriel Y.H. De Focatiis, Davide S.A. Grant, David M. Parsons, Andrew J. Polylactic acid and novel nanoplatelets of hydroxyapatite (HANP) were compounded in a laboratory scale twin-screw extruder and injection moulded to shape. The effect of HANP loading content, between 1 wt% and 10 wt%, and of HANP surface coating with tailored molecular dispersants, on the processability and rheological behaviour were investigated. Dispersion of HANP within the matrix system was determined qualitatively using transmission electron micrographs. Surface coating of HANP with dispersants was observed to change the state of HANP dispersion in the nanocomposites. This was also reflected in the changes of the nanocomposites’ rheological response with the moduli of coated HANP systems increasing at lower frequencies. 2016-10-31 Conference or Workshop Item PeerReviewed Tomczynska, Magdalena M., Choong, Gabriel Y.H., De Focatiis, Davide S.A., Grant, David M. and Parsons, Andrew J. (2016) Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets. In: The Polymer Processing Society Conference 2015, 21-25 September 2015, Graz, Austria. Polylactic acid melt processing nanocomposites hydroxyapatite oscillatory shear rheology TEM http://dx.doi.org/10.1063/1.4965480 |
| spellingShingle | Polylactic acid melt processing nanocomposites hydroxyapatite oscillatory shear rheology TEM Tomczynska, Magdalena M. Choong, Gabriel Y.H. De Focatiis, Davide S.A. Grant, David M. Parsons, Andrew J. Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets |
| title | Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets |
| title_full | Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets |
| title_fullStr | Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets |
| title_full_unstemmed | Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets |
| title_short | Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets |
| title_sort | compounding and rheometry of pla nanocomposites with coated and uncoated hydroxyapatite nanoplatelets |
| topic | Polylactic acid melt processing nanocomposites hydroxyapatite oscillatory shear rheology TEM |
| url | https://eprints.nottingham.ac.uk/39149/ https://eprints.nottingham.ac.uk/39149/ |