Based on torque measurement via a device specially developed by our group, the shearing torque of the mixture of UHMWPAN with swelling agent or solvent during shearing process at various temperatures could be recorded as torque-temperature diagram in the swelling and dissolution process. The temperature where the torque of the mixture began to rise as showed in the torque-temperature diagram was considered as key parameter. UHMWPAN could be swollen fully and the homogeneous solution could be easily prepared if the mixture was heated progressively and was kept for a certain period of time at the every constant temperature. In the case of UHMWPAN (content ≥ 5%), the parameters of the swelling and dissolution process were finally obtained.
From B. Zhang | J. Zhao | Y. Zhang | N. Yang | C. Wu
The Modification of Chemical Fibers and Materials Key State Laboratory, Dong Hua University, Shanghai, China
Appeared in International Polymer Processing 2005/01, Page 3-7
Direct link: http://www.polymer-process.com/IPP1848
Preparing of Homogeneous Solution of Ultrahigh Molecular Weight PAN [218 KB]
Free access for subscribers. PPS-Members: For Access Password please contact your Society.
|© 2013 by Carl Hanser Verlag|