A super-hydrophilic anti-fouling cotton fabric for oil-water separation and zwitterionic hydrogel for the cotton fabric
An oil-water separation, zwitterion technology, applied in gel preparation, colloid chemistry, colloid chemistry and other directions, can solve the problems of hydrophobic oil-water separation membrane blockage, flux reduction, service life reduction, etc., to achieve good anti-fouling effect, To achieve the effect of oil-water separation
Active Publication Date: 2022-03-11
SICHUAN UNIV
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Problems solved by technology
[0003] In view of the problems in the prior art, the present invention provides a cotton fabric with hydrophilic and anti-fouling properties, which has good oil-water separation ability and self-repair ability, and solves the problem that the membrane pores of the hydrophobic oil-water separation membrane are blocked by oil dirt, Causes problems of reduced flux and reduced service life
Method used
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Embodiment
[0023] A superpioty-hydrated cotton fabric for oil-water separation, a cotton fabric as a substrate, a zigodic hydrogel as a coating liquid, forming a hydrogel coating cotton fabric.
[0024] Step 1, the synthesis of gender ion copolymers
[0025] S1, SBMA, HEA, and AIBN (molar ratio 60: 40: 1, SbMa) were dissolved in a mixture (5: 1, v / v) of 18 ml of ethanol and water, stirred and passed at room temperature. 2 Degas 20 minutes; then in a closed vial, the reaction was stirred at a temperature of 70 ° C for 15 h; at this time, the bottle was precipitated;
[0026] S2, the white precipitate is dissolved in hot water of 70 ° C, and the amphoteric ion copolymer is added dropwise to cold ethanol, then dispelled from the solution, then centrifuged and subjected to the upper liquid, repeated three times to purify, and at 70 ° C Dry in a vacuum oven to obtain P (SBMA-CO-HEA);
[0027] Step 2, the preparation of the amphoteric ion hydrogel coated cotton fabric
[0028] Step A. 1 g of P (...
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The invention belongs to the field of oil-water separation, and in particular relates to a super-hydrophilic anti-fouling cotton fabric for oil-water separation and amphoteric ion hydrogel used for the cotton fabric. The super-hydrophilic anti-fouling cotton fabric is based on cotton fabric Material, zwitterionic hydrogel is used as coating solution to form hydrogel-coated cotton fabric, and the preparation methods of super-hydrophilic anti-fouling cotton fabric and zwitterionic hydrogel are provided respectively. The invention solves the problem that the membrane pores of the hydrophobic oil-water separation membrane are blocked by oil, resulting in a decrease in flux and a decrease in service life, and realizes superhydrophilicity, stability and self-repair of cotton fabrics by using amphoteric ion hydrogel At the same time, cotton fabrics have good stain resistance.
Description
Technical field [0001] The present invention belongs to the field of oil and water separation, and more particularly to an ultraffest of hydrophilic anti-framing cotton fabric for oil and water and a zibex ion hydrogel for the cotton fabric. Background technique [0002] Nowadays, industrial emissions have an increasing oil-containing wastewater, as well as frequent crude oil leaks, have caused catastrophic damage to our daily life, natural environment and people's health. Therefore, the development of effective oil-water separation methods is imminent. Traditional oil-water separation techniques such as centrifugation, gas float, adsorption, flocculation, etc., often have low separation efficiency, complex operating equipment, high energy consumption. In recent years, membrane separation techniques have become one of the most effective ways to treat oil wastewater due to its efficient, energy-saving, continuous operation, environmental protection and other advantages. The oil-wa...
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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IPC IPC(8): D06N3/04D06N3/00B01J13/00
CPCD06N3/04D06N3/0088D06N3/0015B01J13/0065D06N2209/146D06N2209/141
Inventor 林绍建兰建武
Owner SICHUAN UNIV