Rigid particle toughening of aliphatic polyketone

Zuiderduin, W.C.J. and Huetink, J. and Gaymans, R.J. (2006) Rigid particle toughening of aliphatic polyketone. Polymer, 47 (16). pp. 5880-5887. ISSN 0032-3861

PDF
Restricted to UT campus only: Request a copy
554Kb

Abstract:	The influence of precipitated calcium carbonate particles on the toughening behaviour of aliphatic polyketone has been studied. The calcium carbonate particles had a particle size of 0.7 mm and a stearic acid coating (1%). Composites of 0e31.5 vol% CaCO3 content have been compounded and injection moulded. Studied are the morphology of the composites, the modulus, yield strength, the notch Izod impact strength and the temperature development in the deformation zone by infrared thermography. The thermal properties of the matrix remained unchanged upon addition of CaCO3. With increasing particle content the modulus increased and the yield strength decreased. This decrease in yield strength is due to the debonding of the particles and was similar as with rubber particles. With increasing particle content the notched impact resistance increased strongly. The notched impact energy at room temperature was increased from 10 to 80 kJ/m2 and the brittle-to-ductile transition temperature was lowered to 80 C. At calcium carbonate contents higher that 16 vol% no further impact improvement was observed. The calcium carbonate particles seemed to debond quite well despite the expected thermal contraction of the matrix polymer. The temperature development in the deformation zone was strong, as strong as with rubber particles. The toughening mechanism with these rigid particles is discussed.
Item Type:	Article
Copyright:	© 2006 Elsevier
Faculty:	Engineering Technology (CTW) Science and Technology (TNW)
Research Chair:	Mechanics of Forming Technology (MFT)
Research Group:	Applied Mechanics (AM) Polymer Chemistry and BioMaterials (PBM)
Link to this item:	http://purl.utwente.nl/publications/59594
Official URL:	http://dx.doi.org/10.1016/j.polymer.2006.05.077
Export this item as:	BibTeX EndNote HTML Citation Reference Manager

Show download statistics for this publication

Repository Staff Only: item control page

Metis ID: 236109