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Preparation method and device of a porous surface structure fiber

A technology of structural fiber and porous surface, applied in the field of melt-blown textile, can solve the problems of limited application, complex preparation process, environmental pollution, etc., and achieve the effects of high specific surface area, controllable pore size, and simple and efficient preparation process.

Active Publication Date: 2022-02-01
JIAXING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The preparation method of the porous surface structure fiber provided by the prior art requires a variety of fiber raw materials, and the preparation process is relatively complicated, and the waste gas and wastewater generated during the preparation process are likely to pollute the environment. In addition, the size and distribution of pores on the surface of the porous surface structure fiber Inhomogeneity also greatly limits its application

Method used

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  • Preparation method and device of a porous surface structure fiber
  • Preparation method and device of a porous surface structure fiber
  • Preparation method and device of a porous surface structure fiber

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Embodiment Construction

[0030] The present invention is described in detail below in conjunction with specific embodiment (but not limited to enumerated embodiment) and accompanying drawing; Modifications and changes in various forms and structures can be made, and these equivalent forms based on the present invention also fall within the protection scope of the claims of the present application.

[0031] figure 1 It is a schematic diagram of a device for preparing porous surface structure fibers according to an exemplary embodiment, including a hopper (1), a high-temperature screw (2), a chamber (3), an airflow generator (4), and an airflow heater (5), jet hole (7), spinneret hole (6) and receiving device (8), characterized in that:

[0032] The hopper (1) is arranged above one end of the high-temperature screw (2), and the other end is connected to the cavity (3); the spinneret hole (6) is set at the lower end of the cavity (3), In addition, the left and right sides of the spinneret hole (6) are ...

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Abstract

The invention discloses a method and a device for preparing fibers with a porous surface structure, and relates to the technical field of melt blown textiles. The preparation method and device of a kind of porous surface structure fiber provided by the present invention, the preparation method and device of a kind of porous surface structure fiber provided by the present invention, utilize the method of high-speed airflow doping nano-PVA particle blowing, make polymer melt In the process of spraying from the spinneret hole, the ultra-fine fiber with nano-PVA particles embedded in the surface is drawn by the high-speed airflow carrying nano-PVA particles, and then the ultra-fine fiber is treated in a water bath to make the embedded ultra-fine The nano-PVA particles on the surface of the fiber are dissolved in water, and then the porous surface structure fiber is prepared, which can solve the technical problems of uneven pore size and distribution on the surface of the porous surface structure fiber, and the complicated preparation process, so that the porous surface structure fiber has a high specific surface area. Moreover, the size of pores on the fiber surface is controllable, and the preparation process is simple and efficient.

Description

technical field [0001] The invention relates to the technical field of melt blown textiles, in particular to a method and device for preparing fibers with a porous surface structure. Background technique [0002] Due to its good adsorption and filtration properties, porous surface structure fibers are widely used in air conditioner filters, masks, purifier filter elements and other fields. [0003] The existing method of preparing fibers with porous surface structure is usually to blend a variety of fiber raw materials, form mixed fibers through melt blown spinning and electrospinning, and then obtain fibers with porous surface structures through solvent volatilization and foaming treatment. Material. For example, in "A Composite Nanofibrous Material with Porous Surface Structure and Its Preparation Method" provided by the application number "201910207256.2", it is disclosed that "preparation of co- Blended spinning solution, the volatilization of the co-solvent of the ble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D13/00D01D5/098D01D5/247D01F11/00
CPCD01D13/00D01D5/0985D01D5/247D01F11/00
Inventor 谢胜韩万里徐旭凡武鲜艳易洪雷
Owner JIAXING UNIV
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