Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of superhydrophobic fiber fabric and preparation method thereof

A fiber fabric and super-hydrophobic technology, which is applied in the field of super-hydrophobic fiber fabric and its preparation, can solve the problems of cumbersome steps and easy falling off of the modified layer, and achieve the effect of low preparation cost and simple preparation process

Active Publication Date: 2019-02-01
TIANJIN UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The currently disclosed methods include dissolving the wax in an organic solvent, then immersing the fabric, drying (Chinese patent CN 103061116A), spraying the surface of the fabric with an atomized prepolymer solution (Chinese patent CN 103835133A), and depositing polydopamine and nano Silver particles (Chinese patent CN 104562709 A), sol-gel method (Chinese patent CN 105544187 A), etc., but at present these methods for preparing superhydrophobic fiber fabrics also have cumbersome steps and the problem that the modified layer is easy to fall off

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of superhydrophobic fiber fabric and preparation method thereof
  • A kind of superhydrophobic fiber fabric and preparation method thereof
  • A kind of superhydrophobic fiber fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of molecular formula is the polyvinyl quaternary ammonium salt ionic liquid of following formula (crosslinking agent is divinylbenzene, crosslinking degree is 10%)

[0035]

[0036] Dissolve in methanol to form a solution with a concentration of 1wt%, then add 0.5wt% of 50nm silicon dioxide particles, ultrasonically disperse for 30 minutes, and form a uniform solution; soak the cotton fabric in this solution for 5 minutes, take it out, and then place it in Dry in an oven at 60°C. The contact angle of the obtained superhydrophobic cotton fabric was 155°.

Embodiment 2

[0038] A kind of molecular formula is the polyvinyl quaternary ammonium salt ionic liquid of following formula

[0039]

[0040] Dissolve in dichloromethane to form a solution with a concentration of 5wt%, then add 1wt% of 200nm alumina particles, ultrasonically disperse for 30min, and form a uniform solution; soak the hemp fiber fabric in this solution for 1min, take it out, and then place it Dry it in an oven at 40°C. The contact angle of the obtained superhydrophobic cotton fabric was 158°.

[0041] The difference between this example and Example 1 is that the polyionic liquid is a homopolymer without a crosslinking agent, and the anion is changed to Br - , the length of the longest carbon chain on the cationic group was changed to 12, the dosage was changed to 5wt%, the solvent was changed to methylene chloride, and the micro-nano particles were changed to 1wt% of 200nm alumina particles, the soaking time was shortened, but finally made The contact angle of the superh...

Embodiment 3

[0043] A kind of molecular formula is the polyvinyl imidazole ionic liquid of following formula

[0044]

[0045] Dissolve in ethanol to form a solution with a concentration of 10wt%, then add 1wt% of 300nm titanium dioxide particles, ultrasonically disperse for 30min, and form a uniform solution; soak the polyester fiber fabric in this solution for 30min, take it out, and then place it in room temperature air Ready to dry. The resulting super-hydrophobic cotton fabric magnified 2000 times electron microscope picture as attached figure 2 As shown, its contact angle is 158°.

[0046] The difference between this example and Example 2 is that the type of polyionic liquid is changed to polyvinyl imidazole ionic liquid, and the anion is changed to BF 4 - , the dosage is changed to 10wt%, the solvent is changed to ethanol, the micro-nano particles are changed to 300nm titanium dioxide particles, and the soaking time is increased.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a super-hydrophobic fiber fabric and a preparation method thereof. The preparation method comprises the following steps: dissolving and dispersing hydrophobic polyion liquid and micron / nano particles into an inorganic solvent to obtain a solution; impregnating the fabric into the solution, then taking out, and drying, so that the super-hydrophobic fiber fabric is obtained. The preparation method of the super-hydrophobic fiber fabric has the advantages that preparation technology is simple, the polyion liquid is stable and easy to get and is not dissolvable in a common oil product, and special instrument or special equipment is not required in the preparation process. The prepared super-hydrophobic fiber fabric also has the characteristic of being super-oleophilic and can be applied to oil-water separation.

Description

technical field [0001] The invention relates to a superhydrophobic fiber fabric and a preparation method thereof. In particular, it relates to a polyionic liquid-based superhydrophobic fabric and a preparation method thereof. Background technique [0002] The super-hydrophobic surface refers to the surface that is repellent to water and aqueous solution. Water droplets cannot slide and spread on the surface and keep rolling in a spherical shape, so as to achieve the effect of rolling and self-cleaning. The lotus leaf in nature is a typical representative of this material. Superhydrophobic fabrics are widely used in daily life because of their self-cleaning properties, anti-fouling properties, and low adhesion, and most superhydrophobic fabrics also have superlipophilicity, which makes them widely used in oil-water separation. [0003] The currently disclosed methods include dissolving the wax in an organic solvent, then immersing the fabric, drying (Chinese patent CN 10306...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/356D06M11/79D06M11/45D06M11/46D06M11/49D06M11/83D06M11/74B01D17/022D06M101/06D06M101/32
CPCB01D17/02D06M11/45D06M11/46D06M11/49D06M11/74D06M11/79D06M11/83D06M15/3562D06M2101/06D06M2101/32D06M2200/12
Inventor 杨华伟徐立东张吕鸿杨娜
Owner TIANJIN UNIV