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Preparation method of hydrophobic oleophylic polyurethane sponge and oil-water separation device

A technology of oil-water separation device and polyurethane sponge, which is applied in the direction of grease/oily substance/floating matter removal device, separation method, liquid separation, etc. It can solve the problems of oil-absorbing felt that cannot be reused, high consumables, and low efficiency, and achieve excellent reliability Reusability, accelerated outflow, and anti-sticking effects

Pending Publication Date: 2022-07-29
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a preparation method of hydrophobic and lipophilic polyurethane sponge and an oil-water separation device, and intends to solve the technical problems that the oil-absorbing felt mentioned in the existing device mentioned in the background technology cannot be reused, has low efficiency and high consumables

Method used

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  • Preparation method of hydrophobic oleophylic polyurethane sponge and oil-water separation device
  • Preparation method of hydrophobic oleophylic polyurethane sponge and oil-water separation device
  • Preparation method of hydrophobic oleophylic polyurethane sponge and oil-water separation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of hydrophobic and lipophilic polyurethane sponge, comprising the following steps:

[0043] The polyurethane sponge was sequentially added to acetone, ethanol and deionized solution for ultrasonic cleaning, and the ultrasonic cleaning time was 10 minutes; the cleaned polyurethane sponge was placed in an oven at 40 ° C for heating and drying, and the drying time was 20 minutes;

[0044] Mix 2 g of epoxy resin and curing agent in a ratio of 1:3 to obtain a brown epoxy resin solution; add 4 g of zinc oxide powder and 15 mL of acetone to the brown epoxy resin solution and perform magnetic stirring at room temperature for 30 min to obtain Mixed solution of epoxy resin and zinc oxide polyurethane;

[0045] The dried polyurethane sponge was immersed in the mixed solution of epoxy resin and zinc oxide polyurethane, and after fully absorbed, centrifuged in a centrifuge at 1000 rpm for 3 min, and the dip coating and centrifugation process was repeated twice; ...

Embodiment 2

[0049] Put the polyurethane sponge into acetone, ethanol and deionized solution for ultrasonic cleaning in sequence, each for 10 minutes; put the cleaned polyurethane sponge into a 40°C oven for heating and drying, and the drying time is 20 minutes.

[0050] Mix 4 g of epoxy resin and curing agent in a mass ratio of 1:3 to obtain a brown epoxy resin solution; add 6 g of zinc oxide powder and 15 mL of acetone to the brown epoxy resin solution, and perform magnetic stirring at room temperature for 30 min. A mixed solution of epoxy resin and zinc oxide is obtained;

[0051] Put the dried polyurethane sponge into the mixed solution of epoxy resin and zinc oxide, and after fully absorbing, centrifuge for 3 minutes in a centrifuge at 1000 rpm, and repeat the dip coating and centrifugation process 5 times; The epoxy resin and zinc oxide polyurethane sponge were obtained by drying in an oven at 60 °C for 8 h.

[0052] The dried epoxy resin and zinc oxide polyurethane sponge were imme...

Embodiment 3

[0055] Put the polyurethane sponge into acetone, ethanol and deionized solution for ultrasonic cleaning in sequence, each for 10 minutes; put the cleaned polyurethane sponge into a 40°C oven for heating and drying, and the drying time is 20 minutes.

[0056] Mix 6 g of epoxy resin and curing agent in a ratio of 1:3 to obtain a brown epoxy resin solution; add 9 g of zinc oxide powder and 15 mL of acetone to the brown epoxy resin solution and perform magnetic stirring at room temperature for 30 min to obtain a ring. Mixed solution of oxygen resin and zinc oxide.

[0057] The dried polyurethane sponge was immersed in a mixed solution of epoxy resin and zinc oxide, and after fully absorbed, centrifuged in a centrifuge at 1000 rpm for 3 min and repeated the dip coating and centrifugation process 10 times; The epoxy resin and zinc oxide polyurethane sponge were obtained by drying in an oven at 60 °C for 8 h.

[0058] The dried epoxy resin and zinc oxide polyurethane sponge were imm...

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Abstract

The invention belongs to the technical field of oil-water separation, and particularly relates to a preparation method of hydrophobic oleophylic polyurethane sponge and an oil-water separation device. In order to solve the problems that most oil-water separation devices in the prior art are large in size, extremely complex in structure, low in separation efficiency, poor in material durability, tedious in operation process and the like, the invention discloses a self-circulation-self-cleaning oil-water separation device which comprises a shell, a transmission mechanism and an oil suction disc, a liquid inlet is formed in a top cover of the shell, and a liquid outlet is formed in a bottom cover of the shell. The liquid inlets are located in the left side and the right side of the top cover of the shell, an oil outlet and a water outlet are formed in the bottom of the shell, the transmission mechanism is composed of a motor and a screw, the motor is fixed to the middle of the top cover of the shell, and one end of the screw is connected with the motor and penetrates through the top cover of the shell. The oil suction discs are fixed on the screw rod in a grading manner; the oil-water separation device overcomes the defects in the prior art, is simple in structure and high in oil-water separation efficiency, and has the self-circulation and self-cleaning characteristics.

Description

technical field [0001] The invention belongs to the technical field of oil-water separation, and in particular relates to a preparation method of a hydrophobic and lipophilic polyurethane sponge and an oil-water separation device. Background technique [0002] In recent years, with the rapid development of modern industry, the increase of oily wastewater discharge and the frequent occurrence of marine crude oil spills have caused environmental pollution and hindered the sustainable development of society. For example, the oil spill in the Gulf of Mexico in 2010 caused serious damage to the local marine ecosystem, and at the same time forced industries such as fishing and tourism to stagnate, causing immeasurable losses to society. Purifying oily wastewater and industrial organic pollutants is an extremely challenging task, therefore, oil-water separation technology has received extensive attention. [0003] At this stage, most oil-water separation devices are relatively lar...

Claims

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Application Information

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IPC IPC(8): C08J9/42C08J9/40C08L75/04C08L63/00C08K3/22C02F1/40B01D17/022
CPCC08J9/42C08J9/40B01D17/0202C02F1/40C08J2375/04C08J2463/00C08K2003/2296
Inventor 赵婧孙若愚刘创莫继良何耀胜
Owner SOUTHWEST JIAOTONG UNIV
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