Co-continuous polycarbonate/ABS blends

Share/Save/Bookmark

Inberg, J.P.F. and Gaymans, R.J. (2002) Co-continuous polycarbonate/ABS blends. Polymer, 43 (8). pp. 2425-2434. ISSN 0032-3861

[img] PDF
Restricted to UT campus only
: Request a copy
1MB
Abstract:Co-continuous PC/ABS (50/50) blends were studied with a variable polybutadiene (PB) content (0–40%) in ABS. Polycarbonate (PC), styrene-acrylonitrile (SAN) and PB were blended in two steps using a twin screw extruder. Rectangular bars were injection moulded and notched Izod impact tested at different temperatures and in single edge notch tensile tests at 1 m/s and different temperatures. Co-continuous PC/ABS gave a brittle-to-ductile transition temperature lower than expected based on notched Izod results for dispersed ABS in PC. The brittle-to-ductile transition temperature, in the co-continuous PC/ABS blends, decreased with increasing rubber content in SAN. The fracture energies showed an optimum at 15% PB in SAN while at the same time a delamination was seen on the ductile fracture surface, due to failure of the PC/SAN interface. Delamination disappeared when the rubber content in SAN or the temperature was increased. Specimens containing a welding were injection moulded to study the influence of rubber and AN content in the SAN on the interface. Weldline strength of the blends was very poor compared to PC, but improved with increasing rubber content in SAN.
Item Type:Article
Copyright:© 2002 Elsevier
Research Group:
Link to this item:http://purl.utwente.nl/publications/74861
Official URL:http://dx.doi.org/10.1016/S0032-3861(01)00813-8
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 211098