Flame-resistant PVDF

Arkema Inc. has announced that Kynar 705 polyvinylidene fluoride (PVDF) has been developed to address the growing need for high-performance flame resistant fibers.

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Arkema Inc. (King of Prussia, Pa.) has announced that Kynar 705 polyvinylidene fluoride (PVDF) has been developed to address the growing need for high-performance flame resistant fibers. This polymer is said to be highly suited for ASTM E84, the Standard Test Method for Surface Burning Characteristics of Building Materials. The new homopolymer grade of Kynar 705 resin has a limiting oxygen index of 70, which means it will not support combustion below 70 percent oxygen concentration. Arkema says the resin was developed for low-denier fiber applications and can be manufactured into spunbond nonwovens and multifilaments, which can then be converted into staple fiber nonwovens or into a woven product.