Device and method for preparing bi-component fibers based on melt differential centrifugation spinning
A bicomponent fiber, centrifugal spinning technology, applied in fiber processing, textile and papermaking, filament/thread forming, etc., can solve the problems of complex electric field environment and low electrospinning efficiency
Active Publication Date: 2021-08-13
BEIJING UNIV OF CHEM TECH
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The advantage of this method is that the fibers are very thin, but the electrospinning efficiency is low and a complex electric field environment is required
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[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] A kind of device of the present invention prepares bicomponent fiber based on melt differential centrifugal spinning, such as figure 1 and figure 2 As shown, it includes a melt conveying device 1, a connecting flange 2, a confluence 3, a laminate 4, a lamination diversion device 5, a heating temperature measurement device 6, a fan-shaped diverter disc 7, a centrifugal differential disc 8, and a centrifugal disc heating ring 9. Electric slip ring 10, high-speed motor 11,...
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The invention discloses a device and method for preparing bi-component fibers based on melt differential centrifugation spinning, and belongs to the field of centrifugal spinning. The whole device comprises a melt conveying device, a connecting flange, a junction station, a laminating device, a laminating and shunting device, a heating ring, a fan-shaped shunting disc, an electromagnetic heating device, a centrifugal differential disc, a high-speed motor, an air draft device and a receiving roller, wherein the laminating device and the laminating and shunting device are used for laminating molten polymer fluid to prepare an alternate multi-layer composite material; the fan-shaped shunting disc can be used for quickly thinning the melt and keeping the melt in a laminated state; the edge of the centrifugal differential disc adopts a radial comb-tooth-shaped structure, and the laminated melt is centrifugally spun into fibers; and the air draft device gathers and collects the fibers by adopting a semicircular notch-into-circular receiving opening. According to the device, the laminating device and the melt differential centrifugation spinning device are combined, the thickness of the melt layer is reduced by utilizing the unique performance of alternate lamination of the laminating device, ordered collection is realized by adopting the air draft device, and a new method is provided for producing bi-component fibers.
Description
technical field [0001] The invention relates to a calculus-based laminated melt centrifugal spinning device and method, belonging to the field of centrifugal spinning. Background technique [0002] Bicomponent fibers are fibers made of two different polymers combined in a certain way. Bicomponent fibers have the properties and advantages of two polymers, one polymer is used to provide its required physical properties, and the other polymer is used to exhibit specific functions, so it is widely used in filtration, optical , conductivity, flame retardant and so on. [0003] Chinese patent CN101798714B discloses the use of a spinneret extrusion molding to obtain bicomponent fibers, the spinneret includes a plurality of spinneret holes, the spinneret holes include a radially arranged skeleton extrusion holes and are extruded by the skeleton There are split extrusion holes spaced apart from the holes, and the primary fiber includes a skeleton part extruded from the skeleton ext...
Claims
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IPC IPC(8): D01D5/18D01D5/30D01D5/00
CPCD01D5/18D01D5/30D01D5/0061D01D5/0076Y02P70/62
Inventor 李好义刘宇亮王宇航安瑛丁玉梅杨卫民
Owner BEIJING UNIV OF CHEM TECH