METHOD FOR MANUFACTURING POLYTETRAFLUOROETHYLENE-BASED COMPOSITE FUSED STRUCTURE AND POLYTETRAFLUOROETHYLENE-BASED COMPOSITE FUSED STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a composite fused structure and a method for manufacturing the same which eliminate difficulty in bonding PTFE molded products to each other, which is the drawback, while utilizing the advantages of PTFE extremely excellent in properties such as chemical resistance, electrical properties and heat resistance.;SOLUTION: There can be obtained a fused structure having a structural portion of "(1)/(2)/(1)" by performing a calcination and fusion method in which PTFE preforms (1A) and (1A) are calcined and simultaneously fused in a state where a modified PTFE preform (2A) is interposed between the PTFE preforms (1A) and (1A). In addition, a fused structure having the above structural portion can also be obtained by performing a recalcination and fusion method.;COPYRIGHT: (C)2014,JPO&INPIT