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A kind of preparation method of organic-inorganic hybrid nano superhydrophobic fiber membrane

A super-hydrophobic and fiber membrane technology, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of high price, human body and ecological environment hazards, etc., and achieve improved tensile properties, high specific surface area, high hardness and strength Effect

Active Publication Date: 2016-09-07
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although fluorine-containing water-repellent agents have excellent water-repellent properties, they are expensive and have certain potential hazards to the human body and the ecological environment. Therefore, we are looking for substitutes for fluorine-containing water-repellent agents and adopt novel technologies to achieve their water-repellent properties. has also become a current research hotspot

Method used

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  • A kind of preparation method of organic-inorganic hybrid nano superhydrophobic fiber membrane
  • A kind of preparation method of organic-inorganic hybrid nano superhydrophobic fiber membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of spinning solution

[0038] Preparation of PS spinning solution: at room temperature, add polystyrene (PS) to N,N dimethylformamide (DMF) / tetrahydrofuran (THF) = 3:1 solvent, completely dissolve and magnetically stir for 4 hours to obtain 30wt .% concentration of polystyrene spinning solution, then add 10wt.% SiO modified with epoxy-modified silicone oil 2 Composite nanoparticles, continue magnetic stirring until the silica nanoparticles can be completely and uniformly dispersed in the spinning solution of PS and solvent.

[0039]Preparation of PAN spinning solution: Add polyacrylonitrile (PAN) into N,N dimethylformamide (DMF) at room temperature, and stir magnetically for 3.5 hours after completely dissolving to obtain a polystyrene spinning solution with a concentration of 12wt.%. Silk liquid, then add 5wt.% epoxy modified silicone oil modified SiO 2 Composite nanoparticles, continue magnetic stirring until the silica nanoparticles can be completel...

Embodiment 2

[0043] (1) Preparation of spinning solution

[0044] Preparation of PS spinning solution: at room temperature, add polystyrene (PS) to N,N dimethylformamide (DMF) / tetrahydrofuran (THF) = 3:1 solvent, completely dissolve and magnetically stir for 4 hours to obtain 30wt .% concentration of polystyrene spinning solution, then add 15wt.% SiO modified by epoxy-modified silicone oil 2 Composite nanoparticles, continue magnetic stirring until the silica nanoparticles can be completely and uniformly dispersed in the spinning solution of PS and solvent.

[0045] Preparation of PAN spinning solution: Add polyacrylonitrile (PAN) to N,N dimethylformamide (DMF) at room temperature, and magnetically stir for 3 hours after completely dissolving to obtain 10wt.% concentration of polystyrene spinning solution, and then add 5wt.% epoxy modified silicone oil modified SiO 2 Composite nanoparticles, continue magnetic stirring until the silica nanoparticles can be completely and uniformly dispers...

Embodiment 3

[0049] (1) Preparation of spinning solution

[0050] Preparation of PS spinning solution: at room temperature, add polystyrene (PS) to N,N dimethylformamide (DMF) / tetrahydrofuran (THF) = 3:1 solvent, completely dissolve and magnetically stir for 4 hours to obtain 30wt .% concentration of polystyrene spinning solution, then add 10wt.% SiO modified with epoxy-modified silicone oil 2 Composite nanoparticles, continue magnetic stirring until the silica nanoparticles can be completely and uniformly dispersed in the spinning solution of PS and solvent.

[0051] Preparation of PAN spinning solution: at room temperature, polyacrylonitrile (PAN) was added to N,N dimethylformamide (DMF), completely dissolved and then magnetically stirred for 3 hours to obtain a polystyrene spinning solution with a concentration of 12wt.%. solution, and then add 8wt.% epoxy modified silicone oil modified SiO 2 Composite nanoparticles, continue magnetic stirring until the silica nanoparticles can be com...

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Abstract

The invention relates to an organic and inorganic hybridization nanometer super-hydrophobic fiber membrane and a preparing method thereof. The super-hydrophobic fiber membrane is a polystyrene / polyacrylonitrile nanometer fiber membrane comprising silicon dioxide particles modified by epoxy modified polysiloxane. The preparing method comprises the steps that under the indoor temperature conditions, the polystyrene (PS) is added into solvent to be stirred and dissolved, the silicon dioxide composite nanometer particles modified by epoxy modified polysiloxane are added into the mixture to be stirred to obtain a PS spinning solution; under the indoor temperature conditions, the polyacrylonitrile (PAN) is dissolved in the solvent to be stirred and dissolved, and the silicon dioxide composite nanometer particles modified by epoxy modified polysiloxane are added into the mixture to be stirred to obtain a PAN spinning solution; double-sprayer electrostatic spinning and drying are carried out, and then the organic and inorganic hybridization nanometer super-hydrophobic fiber membrane is obtained. According to the organic and inorganic hybridization nanometer super-hydrophobic fiber membrane and the preparing method, the strength of the hydrophobic fiber can be improved to a certain degree, the hydrophobic performance can be superior without modifying the surface through fluorochemicals and other low surface potential energy substances, and the problems that an existing super-hydrophobic fiber is complex in preparing process and low in strength are solved.

Description

technical field [0001] The invention belongs to the field of superhydrophobic materials and preparation thereof, in particular to a method for preparing an organic-inorganic hybrid nanometer superhydrophobic fiber membrane. Background technique [0002] At present, superhydrophobic materials are attracting more and more attention, and they are widely used in many areas of life, such as self-cleaning coatings on automobile surfaces, anti-snow / anti-icing glass, non-stick coatings for power lines, metal Anti-corrosion and oil-water separator and so on. Therefore, the study of superhydrophobic materials has important theoretical value and practical significance. Inspired by the microstructure of the lotus leaf surface, people have summarized two ideas for preparing superhydrophobic surfaces: one is to create micro-nano rough structures on surfaces with low surface energy; surface modification. In recent years, scientists have prepared superhydrophobic surfaces through various...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/728
Inventor 蔡再生李晓燕王贺兰汪冉
Owner DONGHUA UNIV