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Preparation method of special-infiltration functional fabric surface with self-cleaning and oil-water separation functions

A technology for oil-water separation and functional fabrics, applied in plant fibers, textiles and papermaking, fiber processing, etc., can solve the problems of poor stability, complex operation process of super-hydrophobic self-cleaning surface, uncontrollable film morphology, etc., and achieve chemical resistance. Good properties, durable superhydrophobicity, good biodegradability

Active Publication Date: 2015-01-21
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology involves two steps: 1) creation of nanoparticles from titanium dioxide (titania), an oxidizing agent that forms tiny particles called silicon carbons). These small particles are then attached onto fibers or other porous structures made up of synthetic polymer fiber bundles for use in various applications such as filters, membranes, coatings on fabrics like clothes, medical devices, and others.2-2) Using fluorosissilanes modified nanoscopic tissue films obtained through this technique allows for easy control over their structure's shape without complicated processes.

Problems solved by technology

This patented technical solution describes making strong but flexible coatings for prevention from damage caused by friction between different objects during transportation without causing any harm themselves (self clean). These coating layers are made up mostly of tiny particles called nanoparticles which can slide easily over each other when rubbed together. They also form small cavities inside them where liquid cannot pass freely due to their high specific gravity. By creating this structure, they provide better protection against wear compared to regular smooth ones.

Method used

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  • Preparation method of special-infiltration functional fabric surface with self-cleaning and oil-water separation functions
  • Preparation method of special-infiltration functional fabric surface with self-cleaning and oil-water separation functions
  • Preparation method of special-infiltration functional fabric surface with self-cleaning and oil-water separation functions

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preparation example Construction

[0030] The invention provides a method for preparing the surface of a special wettable functional fabric with self-cleaning and oil-water separation functions, comprising the following steps:

[0031] A method for preparing the surface of a special wettable functional fabric with self-cleaning and oil-water separation functions, the method comprises the following steps:

[0032] (1) Dissolve potassium titanium oxalate in deionized water, and slowly add H 2 o 2 Solution, adjust the pH value of the above solution with HCl to obtain a prepared solution, move the prepared solution to a blue cap reagent bottle, add a clean cotton cloth to the blue cap reagent bottle, and prepare it by a one-step water bath method With nano TiO 2 Cotton cloth on the surface; and

[0033] (2) the described nano-TiO 2 The cotton cloth on the surface is soaked in the fluorosilane solution, and after reacting for a certain period of time, it is taken out and dried, and the cotton cloth on the surfac...

Embodiment 1

[0048] In this embodiment, the surface of a special wettable functional fabric with self-cleaning and oil-water separation functions is prepared according to the following steps:

[0049] Step 1, one-step water bath method to prepare nano-TiO 2 surface

[0050] Cut 5 pieces of cotton cloth according to the size of 3×3cm, put them in a beaker, and pass through deionized water and absolute ethanol for 5 minutes. Weigh 0.25mmol titanium potassium oxalate with an electronic balance, dissolve it in 30ml deionized water, and slowly add 1ml of 30% H 2 o 2 , and then adjust the pH value of the above solution with HCl, the adjusted pH=1.5. Transfer the above prepared solution to a 100ml blue cap bottle, add clean cotton cloth, put it in an 80°C water bath for 0.5 hour reaction, after the reaction, thoroughly clean the excess reactant on the surface of the cotton fabric with deionized water.

[0051] Step 2. Preparation and modification of fluorosilane solution

[0052] Add 48ml of...

Embodiment 2

[0055] In this embodiment, the surface of a special wettable functional fabric with self-cleaning and oil-water separation functions is prepared according to the following steps:

[0056] Step 1, one-step water bath method to prepare nano-TiO 2 surface

[0057] Cut 5 pieces of cotton cloth according to the size of 3×3cm, put them in a beaker, and pass through deionized water and absolute ethanol for 5 minutes. Weigh 0.75mmol titanium potassium oxalate with an electronic balance, dissolve it in 30ml deionized water, and slowly add 1ml of 30% H 2 o 2 , and then adjust the pH value of the above solution with HCl, the adjusted pH=1.6. Transfer the above-mentioned prepared solution to a 100ml blue cap bottle, add clean cotton cloth, put it in a water bath at 80°C for 20 hours of reaction, and thoroughly wash off the excess reactant on the surface of the cotton fabric with deionized water after the reaction is completed.

[0058] Step 2. Preparation and modification of fluorosil...

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
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Abstract

The invention discloses a preparation method of a special-infiltration functional fabric surface with self-cleaning and oil-water separation functions. The preparation method comprises the following steps: dissolving titanium potassium oxalate into deionized water, slowly dropwise adding an H2O2 solution under the stirring action of a magnetic rotor, adjusting the pH value of the solution by virtue of HCl to obtain a prepared solution, transferring the prepared solution into a blue-cap reagent bottle, adding clean cotton cloth into the blue-cap reagent bottle, and preparing the cotton cloth with a nano-TiO2 surface by virtue of a one-step water bath process; soaking the cotton cloth with the nano-TiO2 surface into a fluorosilane solution, taking out the cotton cloth after reacting for a certain time, and drying so as to obtain the cotton cloth with the special-infiltration functional fabric surface with the self-cleaning and oil-water separation functions. The preparation method has the advantages that the process is simple and convenient and is easy to operate, the reaction conditions are mild, the special-infiltration functional fabric surface has durable and stable super-hydrophobic self-cleaning performance and a good oil-water separation function, and fabrics have excellent comfort levels and mechanical properties.

Description

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
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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
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Application Information

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Owner SUZHOU UNIV
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