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Method for preparing double-strand fiber film by electrospinning

An electrospinning method and a fiber film technology, which is applied in the field of film preparation, can solve the problems of difficult film formation, difficulty in improving the hydrophobicity and tensile properties of the film at the same time, etc., and achieves a simple preparation process, increased application range and application prospect, Configure fast effects

Inactive Publication Date: 2017-04-12
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the technical problems that the existing PS method is difficult to form a film, and the film prepared by the electrospinning method is difficult to improve the hydrophobicity and tensile properties at the same time, and discloses a method for preparing a double-strand fiber film by the electrospinning method. Preparation

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  • Method for preparing double-strand fiber film by electrospinning
  • Method for preparing double-strand fiber film by electrospinning
  • Method for preparing double-strand fiber film by electrospinning

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specific Embodiment approach 1

[0021] Specific embodiment one: the method for preparing double-strand fiber film by electrospinning method in this embodiment is as follows:

[0022] 1. Dry polystyrene particles at 60-100°C for 2-5 hours;

[0023] 2. Prepare one or any two of dimethylformamide, tetrahydrofuran, toluene and chloroform as a solvent, then add the dried polystyrene particles in step 1 into the solvent, seal it, and stir it magnetically at room temperature 6-24 hours, until a uniform transparent solution is obtained, and then after standing at room temperature for 2-4 hours, an electrospinning solution with a mass concentration of 10-50% is obtained;

[0024] 3. Electrospinning for 2-8 hours under the conditions that the distance between the positive electrode and the negative electrode is 10-25 cm, the rotational speed of the receiving electrode is 20-100 rpm, and the voltage is 10-30 kV, to obtain a double-strand fiber film.

[0025] When the solvent described in step 2 of this embodiment is p...

specific Embodiment approach 2

[0026] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the solvent described in step 2 is composed of dimethylformamide and tetrahydrofuran, wherein the mass ratio of dimethylformamide and tetrahydrofuran is 75-50:25 ~50. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0027] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the solvent described in step two is composed of dimethylformamide and tetrahydrofuran, wherein the mass ratio of dimethylformamide and tetrahydrofuran is 50 : 50. Others are the same as those in the first or second embodiment.

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Abstract

The invention relates to a production method of a film, in particular to a method for producing a double-strand fiber film by electrostatic spinning, belongs to the technical field of polymer materials and mainly aims to overcome the technical problems such that film formation with PS (polystyrene) by the existing method is difficult, and hydrophobicity and tensility of the film produced by electrostatic spinning are difficult to improve at the same time. The method includes the steps of adding polystyrene particles into solvent, performing sealing, performing magnetic mixing at the room temperature until uniform transparent solution is obtained, and allowing the solution to stand at the room temperature for hours so as to obtain electrospinning solution; performing electrostatic spinning for 2-8 hours to obtain the double-strand fiber film under the conditions of a 10-25cm distance between an anode and a cathode, 20-100rpm speed of a receiver and 10-30kV voltage. The method allows the double-strand fiber film to be produced in an environmental and efficient way. The tensile strength of the double-strand fiber film produced by the method is up to 0.4Mpa, and a contact angle of the double-strand fiber film is 135-147 DEG.

Description

technical field [0001] The invention relates to a method for preparing a thin film, which belongs to the technical field of polymer materials. Background technique [0002] Polystyrene (PS) is a traditional industrial plastic, which is widely used due to its easy processing, colorless transparency, good hydrophobic and mechanical properties, and has also become one of the choices of superhydrophobic materials. However, PS thin films prepared by traditional film-forming methods are highly brittle and difficult to adjust their properties, which limits their application range. Among the many polymer film preparation methods, electrospinning technology is one of the most simple, efficient and environmentally friendly methods. The one-dimensional nanoscale materials prepared by electrospinning have the characteristics of high specific surface area, large aspect ratio, and cross-linked network structure, which make the materials have attractive application prospects in chemistry ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D04H1/4291
Inventor 宦思琪韩广萍程万里倪晓慧刘国相白龙
Owner NORTHEAST FORESTRY UNIVERSITY