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Method for preparing vinyl polysiloxane nanofiber membrane through electrostatic spinning

A vinyl polysiloxane, vinyl polysiloxane spinning technology, applied in fiber processing, textiles and papermaking, non-woven fabrics, etc., can solve undeveloped problems and achieve high production efficiency, cost and The effect of low energy consumption and simple process equipment

Active Publication Date: 2015-07-29
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of vinyl polysiloxane in the field of textiles and nanomaterials has never been reported, and some excellent properties related to it, such as superhydrophobicity, UV protection performance, antifouling performance, oil-water separation, etc. have not yet been developed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add vinyl polysiloxane with a weight-average molecular weight of 58,000 g / mol to anhydrous methanol solution at a mass ratio of 6.5:3.5, and add 2% sodium chloride of the total mass of the solution, and ultrasonically disperse at a temperature of 30°C 2.5h, the prepared spinning solution is electrospun with the help of an electrospinning machine, the spinning voltage is set to 15KV, the spinning distance between the spinning port and the receiving device is 10cm, the injection flow rate is 2mL / h, and the receiving device As a grounded conductive plate, start the electrospinning machine to carry out electrospinning, collect vinyl polysiloxane nanofiber film on the conductive plate; soak the obtained ultrafine fiber in deionized water for 2h, then place the ultrafine fiber in The air pressure is 0.08 MPa, and the temperature is 35° C. in a vacuum drying oven for 8 hours at low temperature to obtain a vinyl polysiloxane nanofiber film with an average fiber diameter of 120 n...

Embodiment 2

[0027] Add vinylpolysiloxane with a weight average molecular weight of 58000g / mol to the absolute ethanol solution at a mass ratio of 7:3, and add 2% sodium chloride of the total mass of the solution, and ultrasonically disperse at a temperature of 30°C 2.5h, the prepared spinning solution is electrospun with the help of an electrospinning machine, the spinning voltage is set to 15KV, the spinning distance between the spinning port and the receiving device is 10cm, the injection flow rate is 2mL / h, and the receiving device As a grounded conductive plate, start the electrospinning machine to carry out electrospinning, collect vinyl polysiloxane nanofiber film on the conductive plate; soak the obtained ultrafine fiber in deionized water for 2h, then place the ultrafine fiber in The air pressure is 0.08 MPa, and the temperature is 35° C. in a vacuum drying oven for 8 hours to obtain a vinyl polysiloxane nanofiber film with an average fiber diameter of 68 nm.

[0028] Example 3

Embodiment 3

[0030] Add vinyl polysiloxane with a weight-average molecular weight of 60,000 g / mol to anhydrous propanol solution at a mass ratio of 6:4, and add 2% sodium chloride of the total mass of the solution, and ultrasonicate at a temperature of 30°C After dispersing for 2.5 hours, the prepared spinning solution was electrospun with the help of an electrospinning machine, the spinning voltage was set at 15KV, the spinning distance between the spinning port and the receiving device was 10cm, and the sample injection flow rate was 2mL / h. The device is a grounded conductive plate, start the electrospinning machine for electrospinning, and collect vinyl polysiloxane nanofiber film on the conductive plate; soak the obtained ultrafine fibers in deionized water for 2 hours, and then place the ultrafine fibers Dry at a low temperature for 8 hours in a vacuum drying oven with an air pressure of 0.08 MPa and a temperature of 35° C. to obtain a vinyl polysiloxane nanofiber film with an average ...

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Abstract

The invention relates to a method or preparing a vinyl polysiloxane nanofiber membrane, belonging to the technical field of processing of textile materials. The method comprises the following steps: dissolving vinyl polysiloxane to prepare a spinning solution; carrying out electrostatic spinning by using an electrostatic spinning machine; collecting; and finally drying to obtain the vinyl polysiloxane superfine fiber. The vinyl polysiloxane nanofiber membrane prepared by the preparation method disclosed by the invention not only has the functions of ultraviolet resistance, super-hydrophobicity and self-cleaning, but also can be used for water purification, air filtration, lithium ion battery separators and carrier materials. In the meantime, the preparation method of the vinyl polysiloxane nanofiber membrane is simple, high in production efficiency, relatively low in cost and energy consumption, free of pollution to the ecological environment and suitable for industrial production.

Description

Technical field: [0001] The invention specifically relates to a preparation method of a vinyl polysiloxane nanofiber film, which belongs to the technical field of textile material processing. Background technique [0002] The electrospinning method is to apply an electric field force to the polymer solution or melt, and under the action of the electrostatic field force, the polymer jet is ejected and stretched into nano-scale fibers during the movement. Nanofibers prepared by electrospinning exhibit very large specific surface area, high flexibility, super high adsorption, high surface activity and super mechanical properties. These excellent characteristics make nanofibers widely used in biology, medicine, energy, The environment, advanced manufacturing, national defense and other fields have shown very broad uses and application prospects. [0003] Vinyl polysiloxane is a kind of special polymer with both inorganic / organic structure. Its excellent physical and chemical pr...

Claims

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Application Information

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IPC IPC(8): D04H1/728D04H1/42D01D5/00
Inventor 陈东志陈凤翔刘欣徐卫林周应山
Owner WUHAN TEXTILE UNIV
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