Ceramic coated fiber containing flame retardant polymer and method for producing nonwoven fabric structure

摘要

A fiber stabilized melt blown fiber structure comprising a ceramic coated melt blown nonwoven fiber, and a manufacturing method for producing such a refractory nonwoven fiber structure.The melt blown fiber has a nonwoven fiber structure having a sufficient amount of poly (phenylene sulfide) to pass over one or more fire resistance tests, such as ul994 V0, FAR25.853 (a), far25.856 (a), and Ca A ceramic coating is provided.The melt blown fiber is subjected to controlled atmospheric heat treatment at a temperature lower than the melting temperature of the poly (phenylene sulfide) immediately after it comes out of at least one orifice of the melt blow die to impart dimensional stability to the fiber.The nonwoven fiber structure comprising an air heat treated melt blown fiber exhibits a shrinkage rate of less than about 15%, which is lower than the shrinkage rate measured in a nonwoven fiber structure comprising only fibers without controlled air conditioning operation.