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DEVICE AND METHOD FOR PREPARING CONTINUOUS NANOFIBROUS YARNS AND BUNDLES FROM ELECTROSPUN FIBERS AND FIBRILS
DEVICE AND METHOD FOR PREPARING CONTINUOUS NANOFIBROUS YARNS AND BUNDLES FROM ELECTROSPUN FIBERS AND FIBRILS
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机译：从电纺纤维和原纤维制备连续的纳米纤维纱和束的装置和方法
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摘要
Apparatus for preparing a continuous nanofibrous yarn comprising an electrocspinning chamber 1 with at least one first opening 3 in the upper region of the chamber to receive a gas and a second opening 14 in the bottom region of said chamber for discharging the gas and the yarn 7; means for creating helical movement of the gas 6 within the chamber; means for introducing a plurality of nanofibres into said chamber, wherein said nanofibres are twisted together by said helical movement of gas; and means for continuously removing said yarn from said camber through the second opening 14. The chamber may be shaped as an inverted cone, a bicone or cylinder; and have a negative pressure within the chamber created via the use of a fan 2 or vacuum pump around the base chamber which preferably creates a horizontal gas flow below the second opening. Alternatively the low pressure can be created by the use of a compressed air across the opening to create a venture effect. The means for introducing the nanofibres are via oppositely charged nozzles 5, and the yarn is preferably wound onto a roller 13. Alternatively the nanofibres are collected on a core yarn (16, fig 3b) that is pulled through the electrospinning chamber.
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