| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fiber sheet containing PPS excellent in heat resistance, chemical resistance, and electric insulating properties as a principal component, and to provide a method for producing the same. <P>SOLUTION: There is provided a fiber sheet containing polyphenylene sulfide as a principal component. A space between fibers that constitute the fiber sheet is filled with a resin containing polyphenylene sulfide as a principal component. The fiber sheet has an air permeability of less than 0.05 cc/cm<SP POS="POST">2</SP>/s. The fiber sheet is produced by respectively laminating one or more nonwoven fabrics A containing polyphenylene sulfide having crystallinity of 20% or more and 50% or less and one or more nonwoven fabrics B containing polyphenylene sulfide having crystallinity of 0% or more and less than 10%, softening and deforming the nonwoven fabrics B to fill between fibers of the nonwoven fabrics A, and thus setting the air permeability to less than 0.05 cc/cm<SP POS="POST">2</SP>/s. <P>COPYRIGHT: (C)2013,JPO&INPIT |
