RHEOLOGICAL CONDITIONS FOR THE DEVELOPMENT OF FIBRILS IN BLENDS OF LIQUID-CRYSTALLINE AND CONVENTIONAL POLYMERS

Authors
ROETTING O HINRICHSEN G
Citation
O. Roetting et G. Hinrichsen, RHEOLOGICAL CONDITIONS FOR THE DEVELOPMENT OF FIBRILS IN BLENDS OF LIQUID-CRYSTALLINE AND CONVENTIONAL POLYMERS, Journal of thermoplastic composite materials, 10(6), 1997, pp. 524-531
Citations number
21
Categorie Soggetti
Materials Sciences, Composites
Journal title
Journal of thermoplastic composite materials → ACNP
ISSN journal
08927057
Volume
10
Issue
6
Year of publication
1997
Pages
524 - 531
Database
ISI
SICI code
0892-7057(1997)10:6<524:RCFTDO>2.0.ZU;2-L
Abstract
In blends of liquid crystalline polymers (LCP) with conventional therm oplastics, the development of infinite, thin and highly oriented LCP-f ibrils is very important for a substantial mechanical reinforcement of the blends. Such fibrils can be produced by processing a coarse mixtu re of LCP and polyethyleneterephthalate (PET) powders in an extrusion apparatus in which preferentially elongational, but only weak shear fl ows occur. The rheological conditions for the success of this process are explained.