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Preparation method of organic/inorganic hybridization nano super-hydrophobic fiber film

A super-hydrophobic, fibrous membrane technology, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of human body and ecological environment hazards, high price, etc., and achieve the effect of low price, wide application and uniform diameter distribution.

Active Publication Date: 2014-05-28
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Preparation method of organic/inorganic hybridization nano super-hydrophobic fiber film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) The precursor solution of polymeric inorganic substances was prepared by sol-gel technology: a polyvinyl alcohol (PVA) solution with a mass fraction of 10% was prepared, heated to 90°C in a water bath and continuously stirred with a magnetic stirrer for 4 hours to Mix well. The molar ratio of ethyl orthosilicate: water: zinc acetate: phosphoric acid is 1:1.5:0.3:0.02 to prepare a mixed solution of TEOS and zinc acetate, and stir at room temperature for 4 hours. Then mix it with the PVA solution at a mass ratio of 1:1 to obtain an electrospinning precursor solution.

[0029] (2) Electrospinning to obtain organic-inorganic hybrid fibers: pump the precursor solution into the syringe, apply a high voltage of 20KV at the nozzle through a high-voltage DC power supply, and place the syringe on a micro-injection pump, and adjust the injection speed to 2mL / hour, the receiving distance is set to 20cm. A fibrous membrane was obtained on a receiver lined with aluminum foil....

Embodiment 2

[0032](1) The precursor solution of polymeric inorganic substances was prepared by sol-gel technology: a polyvinylpyrrolidone (PVP) solution with a mass fraction of 10% was prepared, heated to 90°C in a water bath, and continuously stirred with a magnetic stirrer for 4 hours to Mix well. The molar ratio of ethyl orthosilicate: water: zinc acetate: phosphoric acid is 1:1.5:0.3:0.02 to prepare a mixed solution of TEOS and zinc acetate, and stir at room temperature for 4 hours. Then mix it with the PVA solution at a mass ratio of 1:1 to obtain an electrospinning precursor solution.

[0033] (2) Electrospinning to obtain organic-inorganic hybrid fibers: pump the precursor solution into the syringe, apply a high voltage of 15KV at the nozzle through a high-voltage DC power supply, and place the syringe on a micro-injection pump, and adjust the injection speed to 2mL / hour, the receiving distance is set to 15cm. A fibrous membrane was obtained on a receiver lined with aluminum fo...

Embodiment 3

[0037] (1) The precursor solution of polymeric inorganic substances was prepared by sol-gel technology: a polyvinyl alcohol (PVA) solution with a mass fraction of 10% was prepared, heated to 85°C in a water bath and continuously stirred with a magnetic stirrer for 4 hours to Mix well. The molar ratio of ethyl orthosilicate: water: zinc acetate: phosphoric acid is 1:1.5:0.3:0.02 to prepare a mixed solution of TEOS and zinc acetate, and stir at room temperature for 4 hours. Then mix it with the PVA solution at a mass ratio of 1:1 to obtain an electrospinning precursor solution.

[0038] (2) Electrospinning to obtain organic-inorganic hybrid fibers: pump the precursor solution into the syringe, apply a high voltage of 20KV at the nozzle through a high-voltage DC power supply, and place the syringe on a micro-injection pump, and adjust the injection speed to 2mL / hour, the receiving distance is set to 20cm. A fibrous membrane was obtained on a receiver lined with aluminum foil....

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Abstract

The invention relates to a preparation method of an organic / inorganic hybridization nano super-hydrophobic fiber film. The method comprises the steps of dissolving a polymer carrier in water, and heating and stirring to obtain a polymer carrier solution; mixing tetraethoxysilane, water, zinc acetate and phosphoric acid, and stirring at the room temperature to obtain a mixing solution; uniformly mixing the mixed solution and the polymer carrier solution, then performing electrostatic spinning, drying in vacuum, forging, cooling and dipping in HCl solution, and drying to obtain a SiO2 porous nano fiber film; compositing and laminating the SiO2 porous nano fiber film, pouring a liquid, and drying in vacuum to obtain the organic / inorganic hybridization nano super-hydrophobic fiber film. The super-hydrophobic nano inorganic fibers have superhigh hydrophobic performance which can be maintained under the conditions of humidity, low temperature and the like without the FAS processing, is smooth and soft in hand feeling, gets rid of the limitation of the economic cost of an organic fluorocarbon and APEO and the environment-friendly limitation, and has the advantages of low price, no pollution, wide applicable range and the like.

Description

technical field [0001] The invention belongs to the field of preparation of superhydrophobic materials, in particular to a preparation method of 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 means a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/4209
Inventor 蔡再生李晓燕丁娇娥何云刘惠林徐海明陈立文周归归李燕龙
Owner DONGHUA UNIV
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