Phase Transitions in UHMWPE Fiber Compacts Studied by in situ Synchrotron Microbeam WAXS

Autor:	Amotz Weinberg, Stanislav Ratner, Gad Marom, Ellen Wachtel, P. Mona Moret
Rok vydání:	2004
Předmět:	Phase transition Materials science Polymers and Plastics Organic Chemistry Hexagonal phase Microbeam Synchrotron law.invention law Condensed Matter::Superconductivity Phase (matter) Polymer chemistry Materials Chemistry Orthorhombic crystal system Fiber Composite material Monoclinic crystal system
Zdroj:	Macromolecular Rapid Communications. 25:1150-1154
ISSN:	1521-3927 1022-1336
Popis:	The temperature dependence of the structure of either cross-linked or non-cross-linked ultra-high-molecular-weight polyethylene (UHMWPE) fiber compacts was studied by synchrotron microbeam wide-angle X-ray scattering (WAXS), focusing on the fiber-fiber interface. The phase transition sequence is: melting of the monoclinic phase in the fiber skin, which was completedhy 135 °C; melting of the unconstrained ofthorhombic phase, by 152 °C; melting of the constrained orthorhombic phase and a orthorhombic-hexagonal phase transition until 157 °C; and gradual melting of the hexagonal phase, up to 165 °C. Cross-linking provides additional thermal stabilization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65e4060d593bbbb188099f7341dab8d5 https://doi.org/10.1002/marc.200400102 Zobrazit plný text záznamu Plný text