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Effects of thermotropic LCP on rheologica behavior of high molecular mass polyethylene/organoclay composites

Authors Tang, You-hong
Yang, Hong-mei
Gao, Ping View this author's profile
Issue Date 2007
Source Journal of Central South University of Technology , v. 14, (Suppl. 1), 2007, AUG, p. 192-195
Summary A thermotropic liquid crystalline polymer (TLCP) based on hydroxybenzoic acid, hydroquitione and sebacic acid was used as a processing aid in the extrusion of high molecular mass polyethylene (HMMPE)/clay nanocomposites.. Clay/TLCP with optimal mass ratio loading in HMMPE matrix has better thermal stability than that of clay or TLCP blends. Capillary rheometry experiments were carried out at processing temperature 190 degrees C with TLCP in the full nernatic phase. TLCP is an effective processing aid agent with viscosity reduction in excess of 95\%. The mechanism is proposed and analyzed by morphological study and surface analysis. TLCP has been shown to act as both a compatiblizer between nanoclay and the HNIMPE matrix and a processing aid for the nanocomposite.
ISSN 1005-9784
Language English
Format Article
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