Linear type efficient electrostatic spinning spray nozzle

An electrospinning, linear technology, used in filament/line forming, spinneret assemblies, textiles and papermaking, etc., which can solve the problems of high investment in industrial applications, characterization of nanofiber mechanical properties, and low electrospinning yields and other problems, to achieve the effect of improving spinning efficiency, avoiding long-term contact, and reducing thermo-oxidative degradation

Inactive Publication Date: 2013-03-06
BEIJING UNIV OF CHEM TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] At present, electrospinning technology is immature, and there are still many problems to be solved, such as quality control of electrospun nanofibers, low yield of electrospinning, relatively high investment in industrial applications, and mechanical properties of nanofibers.

Method used

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  • Linear type efficient electrostatic spinning spray nozzle
  • Linear type efficient electrostatic spinning spray nozzle
  • Linear type efficient electrostatic spinning spray nozzle

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Embodiment Construction

[0011] The present invention is a linear high-efficiency electrostatic spinning nozzle, which mainly includes a vertical barrel (12) and a horizontal barrel (11) connected to the vertical barrel (12) by welding, and the inside of the horizontal barrel (11) is crescent-shaped The flow channel (5), wherein the central angle of the arc surface of the crescent-shaped flow channel (5) is 100°, the radius is 12mm, and the two sides of the crescent-shaped flow channel (5) are linear nozzles (8), which are circular with the crescent-shaped flow channel The arc surface is tangent, the gap width of the straight nozzle (8) is 0.3mm, the upper heating ring (3) for material preheating is located at the lower part of the vertical barrel (12), and the heating rod (6) for heating the material is located in the horizontal barrel (11) Just below the inner crescent-shaped flow channel (5), the outer diameter is 8mm, the thermocouple (4) is fixed on the vertical barrel (12) and the horizontal barr...

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Abstract

The invention discloses a linear type efficient electrostatic spinning spray nozzle, which is suitable for the electrostatic spinning of a polymer fusant. The linear type efficient electrostatic spinning spray nozzle comprises a main runner, a crescent runner, a linear nozzle, a diversion trench and a heating and temperature control devices, wherein the polymer fusant enters the crescent runner via the main runner; the fusant can flow to the linear nozzle on a cylindrical wall surface by a crescent flow diversion surface; the polymer flowing out of two sides of the cylindrical wall flows to the bottom end of a horizontal charging barrel via an outer wall surface; secondary shunting of the fusant can be realized by the diversion trench; and after an electrostatic field is added, multiple strands of evenly-injected flows are respectively formed on two sides of the bottom end. According to the linear type efficient electrostatic spinning spray nozzle disclosed by the invention, the problem that materials are left in the nozzle can be solved, and the linear type efficient electrostatic spinning spray nozzle has higher spinning efficiency and is suitable for industrial production.

Description

technical field [0001] The invention relates to an electrostatic spinning nozzle, which belongs to the field of electrostatic spinning. Background technique [0002] Due to the rapid development of nanotechnology, electrospinning has attracted the attention of researchers from all over the world. Nanofibers prepared by electrospinning have their own unique characteristics. For example, nanowires prepared by electrospinning can be very long compared to other spinning methods. , the fiber diameter is smaller, up to 1nm, and the specific surface area is larger. So far, it has been reported that about 100 kinds of polymers can be used to prepare ultrafine fibers by electrospinning. Nano-filaments prepared by electrospinning can be used as filter materials, biomedical functional materials, electrode materials, reinforcing materials, sound-absorbing materials, etc. [0003] At present, electrospinning technology is immature, and there are still many problems to be solved, such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D4/02D01D5/00
Inventor 刘勇宋天丹夏令涛李秀红王克俭郭鸿霖
Owner BEIJING UNIV OF CHEM TECH
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