CROSSLINKED POLYOLEFIN SEPARATOR AND METHOD FOR MANUFACTURING THE SAME

The present disclosure relates to a method for manufacturing a crosslinked polyolefin separator, including the steps of: (S1) introducing polyolefin, a diluting agent, an initiator and alkoxysilane containing a carbon-carbon double bonded group to an extruder, followed by mixing, and then carrying o...

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Bibliographische Detailangaben
Hauptverfasser:	LEE, A-Young, LEE, Joo-Sung, RYU, Bi-Oh, BAE, Won-Sik
Format:	Patent
Sprache:	eng ; hun
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The present disclosure relates to a method for manufacturing a crosslinked polyolefin separator, including the steps of: (S1) introducing polyolefin, a diluting agent, an initiator and alkoxysilane containing a carbon-carbon double bonded group to an extruder, followed by mixing, and then carrying out extrusion to obtain a silane-grafted polyolefin composition; (S2) molding the extruded silane-grafted polyolefin composition in the form of a sheet and stretching the sheet; (S3) introducing the stretched sheet to an extraction water bath containing a crosslinking catalyst to extract the diluting agent and to perform aqueous crosslinking; and (S4) thermally fixing the resultant aqueous crosslinked product. The present disclosure also relates to a crosslinked polyolefin separator obtained by the method. The method can provide a separator having a high meltdown temperature and improved heat shrinkage.