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Method for preparing nanofiber membrane modified paper base material based on electrostatic spinning and application of nanofiber membrane modified paper base material

A technology of nanofiber membrane and paper base material, applied in the field of tobacco filter material, can solve the problems of cost reduction, large amount of acetate fiber, disadvantage, etc., and achieve the effects of reducing release amount, simple preparation method and low cost

Active Publication Date: 2014-03-12
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires a large amount of acetate fiber, which is not conducive to reducing costs, and requires a specially modified molding machine to process filter rods

Method used

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  • Method for preparing nanofiber membrane modified paper base material based on electrostatic spinning and application of nanofiber membrane modified paper base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The cellulose acetate solution is spun separately, and the spinning is carried out in the electrospinning chamber. Dissolve cellulose acetate in acetone to prepare an 8% (W / W) solution, place it in a storage tank, and supply the material liquid to 400 electrospinning nozzles at a speed of 4mL / h per pump through a computer-controlled micropump , the electrospinning voltage is 20KV, the distance between the nozzle and the paper substrate is 20cm, the temperature of the electrospinning environment is 50°C, each group of electrospinning nozzles is 20 nozzles, each group of nozzles forms a circuit, and each group of nozzles in the circuit Rotate continuously at a constant speed in order to make the electrospinning uniform on the receiving substrate. One end of the electrospinning chamber is continuously fed with air, and the other end discharges the air mixed with solvent from the electrospinning chamber for solvent recovery. Paper made of wood pulp fibers is used as a subs...

Embodiment 2

[0026] The polylactic acid fiber (PLA) solution was spun separately. Electrospinning was performed in the electrospinning chamber in Example 1. The spinning equipment is the same as in Example 1. Polylactic acid fiber (PLA) was dissolved in dichloromethane to prepare a 12% (W / W) solution. At room temperature, using a voltage of 15KV and a curing distance of 10cm, the advancing speed of the spinning solution was 2mL / h. It is spun, and the paper made of hemp pulp fiber is used as the substrate to receive polylactic acid nanofibers, and a film layer of white nanofibers with a diameter of about 800 μm is prepared on the base paper to prepare a paper containing electrospun nanofiber membranes. Material, the spraying amount of the nanofiber film on the paper substrate is about 0.3g / m 2 .. The net embossed paper material containing electrospun nanofibers was cut into a narrow width of 26cm, and it was prepared into a filter rod with a tip forming machine and rolled into a cigarett...

Embodiment 3

[0028] The chitosan and polycaprolactam blend solution was spun. Electrospinning was performed in the electrospinning chamber in Example 1. The spinning equipment is the same as in Example 1. Dissolve chitosan in acetic acid to prepare a 7% (W / W) solution, dissolve polycaprolactam in formic acid to prepare a 8% (W / W) solution, mix the two solutions at a mass ratio of 30:70, and set the temperature at room temperature Under the condition of using a voltage of 30KV and a solidification distance of 15cm, the propulsion speed of the spinning solution is 1.0mL / h, and it is spun, and the paper made of hemp pulp fiber is used as a substrate to receive chitosan and polycaprolactam nanofibers, Prepare a film layer of white nanofibers with a diameter of about 600nm on the base paper, and prepare a paper material containing an electrospun nanofiber film. The spraying amount of the nanofiber film on the paper substrate is about 0.2g / m 2 .. The net embossed paper material containing ele...

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Abstract

The invention discloses a method for preparing a nanofiber membrane modified paper base material based on electrostatic spinning and an application of the nanofiber membrane modified paper base material. The method for preparing the nanofiber membrane modified paper base material based on the electrostatic spinning comprises the following steps: after dissolving a polymer raw material into a solvent to prepare a spinning solution, putting the spinning solution into a liquid storage device; after adjusting the voltage of the electrostatic spinning, continuously feeding the spinning solution in the liquid storage device into a spinning head connected with the liquid storage device through a micro pump; and spraying the spinning solution by the spinning head to the surface of a raw paper base body which moves continuously to form a nanofiber membrane, thereby obtaining the nanofiber membrane modified paper base material. The preparation method is simple and can realize continuous industrial production; the prepared nanofiber membrane modified paper base material is applied to preparation of a cigarette paper filter stick which can be used for improving the smoking quality of cigarettes and effectively reducing tar and phenol releasing amount in main stream smoke of the cigarettes.

Description

technical field [0001] The invention relates to a method for preparing a nanofiber membrane modified paper base material based on electrospinning and the application of the nanofiber membrane modified paper base material, belonging to the field of tobacco filter materials. Background technique [0002] Filter rod design is the key design link for cigarette tar reduction and harm reduction. It can effectively realize the inhalation control of harmful substances in mainstream smoke aerosol through the change of filter elements, groove design, and forming paper design. It has become the current cigarette enterprise. It is an effective way to achieve "coke reduction and harm reduction", and it is also a breakthrough point for technological innovation of various enterprises. Compared with the commonly used cellulose diacetate filter sticks at present, pure wood pulp or hemp pulp paper filter sticks have the advantages of significantly reducing smoke tar, being cheaper, and more e...

Claims

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Application Information

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IPC IPC(8): B32B37/15B32B27/02B32B29/02D04H1/728A24D3/06
Inventor 金勇谢兰英刘琦李克王诗太谭海峰范红梅
Owner CHINA TOBACCO HUNAN INDAL CORP
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