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    • 8. 发明授权
    • Process and apparatus for producing nanofibers using a two phase flow nozzle
    • 使用两相流动喷嘴生产纳米纤维的方法和设备
    • US08668854B2
    • 2014-03-11
    • US13912187
    • 2013-06-06
    • Larry MarshallMichael Bryner
    • Larry MarshallMichael Bryner
    • D01D5/00
    • D01D5/08D01D5/0985
    • The disclosure relates to an apparatus and method for producing nanofibers and non-woven nanofibrous materials from polymer melts, liquids and particles using a two-phase flow nozzle. The process comprises supplying a first phase comprising a polymer melt and a second phase comprising a pressurized gas stream to a two-phase flow nozzle; injecting the polymer melt and the pressurized gas stream into a mixing chamber within the two-phase flow nozzle wherein the mixing chamber combines the polymer flow and pressurized gas into a two-phase flow; distributing the two-phase flow uniformly to a converging channel terminating into an channel exit wherein the converging channel accelerates the two-phase flow creating a polymeric film along the surface of the converging channel and fibrillating the polymeric film at the channel exit of the converging channel in the form of a plurality of nanofibers.
    • 本公开涉及一种用于使用两相流动喷嘴从聚合物熔体,液体和颗粒制备纳米纤维和非织造纳米纤维材料的装置和方法。 该方法包括将包含聚合物熔体的第一相和包含加压气流的第二相供应到两相流喷嘴; 将聚合物熔体和加压气体流注入到两相流喷嘴内的混合室中,其中混合室将聚合物流和加压气体组合成两相流; 将两相流均匀地分配到终止于通道出口的会聚通道,其中会聚通道加速两相流沿着会聚通道的表面产生聚合物膜,并且在会聚通道的通道出口处使聚合物膜原纤化 以多个纳米纤维的形式。