Washable super-hydrophobic cotton fabric as well as preparation method and applications thereof

A super-hydrophobic, washing-resistant technology, applied in the direction of separation methods, chemical instruments and methods, textiles and papermaking, etc., can solve the problems of loss of super-hydrophobic properties, complex preparation process, harsh conditions, etc. low cost and simple method

Active Publication Date: 2014-07-30
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a time-saving, simple, low-cost, better flexibility, washing-resistant and durable super-hydrophobic cotton preparation method to overcome the complex preparation process and high cost of super-hydrophobic cloth in the current technology. , harsh conditions, etc., especially to overcome the disadvantage of losing its superhydrophobic properties after repeated washing

Method used

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  • Washable super-hydrophobic cotton fabric as well as preparation method and applications thereof
  • Washable super-hydrophobic cotton fabric as well as preparation method and applications thereof
  • Washable super-hydrophobic cotton fabric as well as preparation method and applications thereof

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specific Embodiment approach 1

[0032] Specific embodiment one: the preparation method of washing-resistant superhydrophobic cotton cloth in this embodiment is carried out according to the following steps:

[0033]Step 1: Clean the cotton cloth with deionized water, ethanol, and deionized water ultrasonically three times, and then dry it; in step 1, the drying temperature is 50° C., and the drying time is 0.5 h, and it is used for later use.

[0034] Step 2, soak the cotton cloth treated in step 1 in an acetone solution of 0.5g / L epoxy resin for 30min, take it out and dry it at room temperature for 10min;

[0035] Step 3. Soak the cotton cloth treated in Step 2 in an aqueous solution of 2 g / L polyethyleneimine for 30 minutes, and dry it at 50°C for 20 minutes after taking it out;

[0036] Step 4: Ultrasonic disperse 0.5g of epoxidized silicon dioxide in 100mL of deionized water to obtain a silicon dioxide solution, then place the cotton treated in step 3 in the silicon dioxide solution for 30 minutes, take i...

specific Embodiment approach 2

[0045] Specific embodiment two: the preparation method of washing-resistant superhydrophobic cotton cloth in this embodiment is carried out according to the following steps:

[0046] Step 1: Clean the cotton cloth three times with deionized water, ethanol, and deionized water ultrasonically, and then dry it; in step 1, the drying temperature is 60° C., and the drying time is 1 hour, and it is used for later use.

[0047] Step 2, soak the cotton cloth treated in step 1 in an acetone solution of 0.5g / L epoxy resin for 30min, take it out and dry it at room temperature for 10min;

[0048] Step 3. Soak the cotton cloth treated in Step 2 in an aqueous solution of 2 g / L polyethyleneimine for 30 minutes, and dry it at 50°C for 20 minutes after taking it out;

[0049] Step 4: Ultrasonic disperse 0.2g of epoxidized silicon dioxide in 100mL of deionized water to obtain a silicon dioxide solution, then place the cotton treated in step 3 in the silicon dioxide solution for 30 minutes, take...

specific Embodiment approach 3

[0053] Specific embodiment three: the preparation method of washing-resistant superhydrophobic cotton cloth in this embodiment is carried out according to the following steps:

[0054] Step 1: Clean the cotton cloth three times with deionized water, ethanol, and deionized water ultrasonically, and then dry it; in step 1, the drying temperature is 60° C., and the drying time is 1 hour, and it is used for later use.

[0055] Step 2. Soak the cotton cloth treated in step 1 in an acetone solution of 1.0g / L epoxy resin for 30 minutes, take it out and dry it at room temperature for 10 minutes;

[0056] Step 3. Soak the cotton cloth treated in Step 2 in an aqueous solution of 5g / L polyethyleneimine for 30 minutes, and dry it at 50°C for 20 minutes after taking it out;

[0057] Step 4: Ultrasonic disperse 5g of epoxidized silica in 100mL of deionized water to obtain a silica solution, then place the cotton treated in step 3 in the silica solution for 30 minutes, take it out and dry it...

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Abstract

The invention discloses a washable super-hydrophobic cotton fabric as well as a preparation method and applications thereof, which belong to the technical field of functional materials. The washable super-hydrophobic cotton fabric is obtained through the steps of washing a cotton fabric, and then sequentially soaking the cotton fabric in an acetone solution of epoxy resin, an aqueous solution of polyethyleneimine, an epoxidized silicon dioxide aqueous solution, and an n-hexane solution of stearic acid for treatment. The preparation method comprises the following detailed steps: 1. washing the cotton fabric; 2. soaking the cotton fabric in an epoxy resin solution; 3. soaking the cotton fabric in a polyethyleneimine solution; 4. soaking the cotton fabric in a modified sub-micro silicon dioxide aqueous solution in which 3-glycidyl ether oxyl propyl trimethoxysilane is dispersed; 5. repeating the steps 3 and 4; 6. soaking the cotton fabric in a stearic acid hydrophobically-modified solution and drying the cotton fabric. The washable super-hydrophobic cotton fabric is used for oil-water separation. The preparation method is simple in technology, low in cost, short in period and low in energy consumption and does not need special complicated equipment; the prepared super-hydrophobic cotton fabric is washable and capable of rapidly separating an oil-water mixture and can be applied to the fields of industrial oil-water separation and the like.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a washing-resistant superhydrophobic cotton cloth and a preparation method thereof, and also relates to the application of the cotton cloth in the field of oil-water separation. Background technique [0002] In recent years, some materials with extreme wettability on the surface have gradually attracted people's attention. Among them, superhydrophobic surfaces have attracted attention due to their contact angle to water greater than 150°, rolling angle less than 10°, and self-cleaning properties. attracted great interest from academia and industry. In nature, the leaves and petals of many plants, the wings of insects, and the feathers of birds are all natural superhydrophobic materials. From previous studies, we can know that the superhydrophobic properties of the material surface are mainly attributed to the rough micro / nano-rough structure of the surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/55D06M15/61D06M11/79D06M13/188B01D17/022D06M101/06
Inventor 王成毓刘峰
Owner NORTHEAST FORESTRY UNIVERSITY
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