Thermomechanical Characterization of a Series of Crosslinked Poly[ethylene-co-(vinyl acetate)] (PEVA) Copolymers

  • PDF / 638,484 Bytes
  • 8 Pages / 432 x 648 pts Page_size
  • 81 Downloads / 154 Views

DOWNLOAD

REPORT




7KHUPRPHFKDQLFDO&KDUDFWHUL]DWLRQRID6HULHVRI &URVVOLQNHG3RO\>HWK\OHQHFR YLQ\ODFHWDWH @ 3(9$ &RSRO\PHUV   0DWWKLDV+HXFKHO/DLWK$O4DLVL.DUO.UDW]8OULFK1|FKHO0DUF%HKODQG$QGUHDV /HQGOHLQ  ,QVWLWXWHRI%LRPDWHULDO6FLHQFHDQG%HUOLQ%UDQGHQEXUJ&HQWHUIRU5HJHQHUDWLYH7KHUDSLHV +HOPKROW]=HQWUXP*HHVWKDFKW.DQWVWU7HOWRZ*HUPDQ\  6FKRRORI$SSOLHG0HGLFDO6FLHQFHV*HUPDQ-RUGDQLDQ8QLYHUVLW\ 32%R[$PPDQ-RUGDQ  $%675$&7  &URVVOLQNHGSRO\>HWK\OHQHco YLQ\ODFHWDWH @ F3(9$ KDVEHHQUHFHQWO\LQWURGXFHGDVD SRO\PHUPDWHULDOZKLFKFDQEHIXQFWLRQDOL]HGZLWKYDULRXVVKDSHPHPRU\HIIHFWVE\VROHO\ DOWHULQJWKHWKHUPRPHFKDQLFDOWUHDWPHQWFDOOHGSURJUDPPLQJ ,QWKLVVWXG\WZRVHULHVRIF3(9$VZLWKGLIIHUHQWYLQ\ODFHWDWHFRQWHQWVRIZW F3(9$ DQGZW F3(9$ FRPSULVLQJGLIIHUHQWFURVVOLQNGHQVLWLHVZHUH LQYHVWLJDWHGE\GLIIHUHQWLDOVFDQQLQJFDORULPHWU\ '6& DQGG\QDPLFPHFKDQLFDOWKHUPDO DQDO\VLV '07$ LQWKHWHPSHUDWXUHUDQJHRIƒ&WRƒ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co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ǻTP XSWRƒ&GHSHQGHQWRQWKH9$FRQWHQWDQGV