Compounding and rheometry of PLA nanocomposites with coated and uncoated hydroxyapatite nanoplatelets

Tomczynska, Magdalena M.

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Data for wall shear stress and torque plots (398.2Kb)

Data for rheological mastercurves (42.5Kb)

Publication date

2015-06-15

Creators

Tomczynska, Magdalena M.

Metadata

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Description

This is the research data for polylactic acid and novel nanoplatelets of hydroxyapatite (HANP) that 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 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 at lower frequencies

External URI

https://rdmc.nottingham.ac.uk/handle/internal/17

DOI

http://doi.org/10.17639/nott.14

Subjects

Polylactic acid
Nanocomposites (Materials)
Hydroxyapatite coating
Hydroxyapatite
Rheology
Polyesters
Nanocomposites
Hydroxyapatites
Coated Materials, Biocompatible
Rheology
Biodegradable polylactic acid, bioresorbable hydroxyapatite, nanocomposites, melt compounding, extrusion, injection-moulding, oscillatory shear rheology, TEM
JACS Subjects::Engineering::General engineering::Bioengineering, biomedical engineering & clinical engineering::Biomaterials
Library of Congress Subject Areas::R Medicine::R Medicine (General)::R855 Medical technology. Biomedical engineering. Electronics

Divisions

Faculties, Schools and Departments::University of Nottingham, UK Campus::Faculty of Engineering::Department of Mechanical, Materials and Manufacturing Engineering

Deposit date

2015-06-11

Data type

Raw data spreadsheets

Contributors

Choong, Gabriel Y.H.

Funders

Funders::Engineering & Physical Sciences Research Council

Grant number

EP/J017272/1

Data collection method

Instruments: (i) Thermo Fisher Scientific HAAKE Minilab II twin-screw recirculating compounder fitted with co-rotating conical screws and (ii) Anton Paar MCR302 rheometer fitted with a CTD620 temperature chamber using Ø25 mm parallel plates with a 0.5 mm gap size in air