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Oil absorbent fibrous membranes production method

An oil-absorbing fiber and a manufacturing method technology, applied in the field of fiber membrane manufacturing, can solve the problems of low oil absorption, slow oil absorption rate of fiber mat, high solution viscosity, etc., and achieve the effect of improving oil absorption rate and enhancing ability

Active Publication Date: 2015-01-07
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, some researchers began to try to electrospin poly(meth)acrylate to prepare new oil-absorbing materials. It was found that although poly(meth)acrylate can be electrospun, due to the severe entanglement between its molecular side chains, As a result, the viscosity of the solution is relatively large, and it is difficult for the charge repulsion force in the electrostatic field to further thin the solution jet into nanofibers, so the obtained fibers are mostly micron-sized, that is, electrospinning can only obtain micron-sized poly(meth)acrylate Fiber, and because poly(meth)acrylate has a good affinity for organic solvents, the solvent cannot be completely volatilized when the fiber reaches the receiving device, causing the fibers on the receiving device to stick to each other, forming a very low porosity Fibrous mats instead of fibrous membranes with high porosity (Jinpeng Mo, Naiku Xu, Changfa Xiao, Xutong Han, Yong Liu, Structure and property of electrospun fibrous mat based on polymethacrylate, Journal of Materials Science, 2014, 49, 4816-4824 ), the fiber mat has defects such as slow oil absorption rate and low oil absorption, and the low porosity makes the fiber mat not suitable for oil-water separation, and its application is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Measure 135.1ml of n-butyl methacrylate and 14.9ml of n-butyl acrylate monomer, put them in a suitable beaker, weigh 0.6715g of benzoyl peroxide, and add it into the above beaker, start the magnetic force Stir until benzoyl peroxide is completely dissolved in the monomer, after this, measure 450ml deionized water, place it in another suitable beaker, weigh 2.25g polyvinyl alcohol, and add it to the above-mentioned other In a beaker, heat up to 85°C and start magnetic stirring until the polyvinyl alcohol is completely dissolved in water, stop heating and stirring, lower the temperature of the polyvinyl alcohol aqueous solution to room temperature, and then add the solution formed by the monomer and benzoyl peroxide Move to the polymerization kettle, then pour the solution formed by deionized water and polyvinyl alcohol into the polymerization kettle, and stir and disperse for 10min, the stirring speed is 500 revolutions / min, at this time, the stirring speed is set to 500 ...

Embodiment 2

[0031] Weigh 18g of polyvinyl chloride, place it in a suitable beaker, measure 82g of dimethylformamide, and add dimethylformamide into the above beaker, stir magnetically at 85°C until a uniform solution is formed, Then suck the above solution into the syringe for electrospinning, place the upper end of the syringe upwards on the bracket, and keep the upper port open, and place the bracket in a vacuum dryer at 40°C and -0.09MPa for 30 minutes. ; Carefully install a No. 9 flat-headed needle on the syringe containing the solution, and place the syringe on the syringe pump so that the height of the needle is equal to the height of the center of the receiving plate, adjust the extrusion speed of the syringe pump to 0.4ml / h, adjust The distance from the needle to the receiving board is 20cm, set the speed of the receiving board to 190r / min, connect the high-voltage output end of the high-voltage power supply to the needle, connect the ground wire to the receiving board, and then wr...

Embodiment 3

[0034]Measure 135.1ml of n-butyl methacrylate and 14.9ml of n-butyl acrylate monomer, put them in a suitable beaker, weigh 0.6715g of benzoyl peroxide, and add it into the above beaker, start the magnetic force Stir until benzoyl peroxide is completely dissolved in the monomer, after this, measure 450ml deionized water, place it in another suitable beaker, weigh 2.25g polyvinyl alcohol, and add it to the above-mentioned other In a beaker, heat up to 85°C and start magnetic stirring until the polyvinyl alcohol is completely dissolved in water, stop heating and stirring, lower the temperature of the polyvinyl alcohol aqueous solution to room temperature, and then add the solution formed by the monomer and benzoyl peroxide Move to the polymerization kettle, then pour the solution formed by deionized water and polyvinyl alcohol into the polymerization kettle, and stir and disperse for 10min, the stirring speed is 500 revolutions / min, at this time, the stirring speed is set to 500 r...

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Abstract

The invention discloses an oil absorbent fibrous membranes production method combined by micro-nano fibers in staggered non-directional alignment in the technical field of fibrous polymer group oil absorbent material production. The production method includes that nano fibers formed by other polymers through techniques such as suspension polymerization, solution blending and electrostatic spinning are arranged into micron poly (meth) acrylate fibers, a fiber web structure combined by nano fibers is used for forming micropores, the nano fibers are used for isolating and preventing bonding among the micron poly (meth) acrylate fibers and providing high porosity, and the micron poly (meth) acrylate fibers are used for supporting and strengthening the fiber web structure combined by nano fibers. The obtained micron poly (meth) acrylate group oil absorbent fiber membrane is good in overall performance, has the advantages of quick oil absorption rate, high oil absorption amount and the like when compared with existing fibrous polymer group oil absorbent materials, can be used for the separation of an oil and water mixture, and further meets the requirements of industrial practicality.

Description

technical field [0001] The invention relates to a manufacturing technology of a fiber membrane, in particular to a manufacturing method of an oil-absorbing fiber membrane composed of interlaced and non-directional arrays of micro-nano-scale fibers. The manufacturing method utilizes suspension polymerization, solution blending, and electrospinning, etc. technology. Background technique [0002] In recent years, the rapid development of industry has brought about great changes in human life, but it has also caused serious harm to the environment on which human beings live while facilitating human daily life. The most serious harm is oily organic matter (referred to as "oil") And its sewage, waste liquid, and various accidents such as oil tanker or storage tank leakage caused by rivers, oceans and other water resources pollution. According to incomplete statistics, oily industrial wastewater pollution accounts for 30% of the overall water pollution, while the pollution caused ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/4382C08F220/16C08F2/20D01D1/02D01D5/00
CPCB01D17/02C08F2/20C08F220/18C08F220/1804D01D1/02D01D5/0061D04H1/4382D04H1/728
Inventor 徐乃库莫锦鹏宁丽群李丹
Owner TIANJIN POLYTECHNIC UNIV
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