Preparation method of magnetic melamine hydrophobic oleophylic sponge

A technology of melamine sponge and melamine, applied in the direction of separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as marine pollution and oil spills, and achieve simple preparation methods, less time-consuming, and good hydrophobic and lipophilic properties Effect

Inactive Publication Date: 2020-04-24
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The development and exploration of offshore oil resources will inevitably bring about the risk of oil spills, directly causing pollution to the ocean

Method used

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  • Preparation method of magnetic melamine hydrophobic oleophylic sponge
  • Preparation method of magnetic melamine hydrophobic oleophylic sponge
  • Preparation method of magnetic melamine hydrophobic oleophylic sponge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A melamine sponge with a volume of 1×1×2 cm is selected and placed at the bottom of the beaker. Prepare a toluene solution of amyltrichlorosilane with a mass fraction of 0.5%, pour it into the beaker where the sponge is placed, and the solution needs to completely submerge the sponge. After soaking for 30min, the modified solution in the sponge was squeezed out and washed with toluene three times. Put the sponge in a fume hood, and dry it in an oven at 120°C for 1 hour after the solvent evaporates completely. Weigh 150mg of magnetic 200nmFe 3 o 4 Nanoparticles, ultrasonically dispersed in 30 mL of absolute ethanol, formulated to a concentration of 5 mg / mL Fe 3 o 4 ethanol dispersion. Submerge the modified sponge in the dispersion liquid, sonicate for 10 minutes, take it out and dry it in an oven at 60°C for 2 hours to obtain a magnetic melamine hydrophobic and lipophilic sponge.

Embodiment 2

[0024] A melamine sponge with a volume of 1×1×2 cm is selected and placed at the bottom of the beaker. Prepare a toluene solution of propyltrichlorosilane with a mass fraction of 0.5%, pour it into the beaker where the sponge is placed, and the solution needs to completely submerge the sponge. After soaking for 30min, the modified solution in the sponge was squeezed out and washed with toluene three times. Put the sponge in a fume hood, and dry it in an oven at 120°C for 1 hour after the solvent evaporates completely. Weigh 150mg of magnetic 200nmFe 3 o 4 Nanoparticles, ultrasonically dispersed in 30 mL of absolute ethanol, formulated to a concentration of 5 mg / mL Fe 3 o 4 ethanol dispersion. Submerge the modified sponge in the dispersion liquid, sonicate for 10 minutes, take it out and dry it in an oven at 60°C for 2 hours to obtain a magnetic melamine hydrophobic and lipophilic sponge.

Embodiment 3

[0026] A melamine sponge with a volume of 1×1×2 cm is selected and placed at the bottom of the beaker. Prepare a toluene solution of methyltrichlorosilane with a mass fraction of 0.5%, pour it into the beaker where the sponge is placed, and the solution needs to completely submerge the sponge. After soaking for 30min, the modified solution in the sponge was squeezed out and washed with toluene three times. Put the sponge in a fume hood, and dry it in an oven at 120°C for 1 hour after the solvent evaporates completely. Weigh 150mg of magnetic 200nmFe 3 o 4 Nanoparticles, ultrasonically dispersed in 30 mL of absolute ethanol, formulated to a concentration of 5 mg / mL Fe 3 o 4 ethanol dispersion. Submerge the modified sponge in the dispersion liquid, sonicate for 10 minutes, take it out and dry it in an oven at 60°C for 2 hours to obtain a magnetic melamine hydrophobic and lipophilic sponge.

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Abstract

The invention discloses a preparation method of magnetic melamine hydrophobic oleophylic sponge. The method comprises the steps: immersing melamine sponge in a toluene solution of a silane coupling agent with a mass fraction of 0.5-1%, after complete immersion, volatilizing a solvent, drying, and carrying out ultrasonic treatment in an ethanol dispersion liquid of nano Fe3O4 and drying to obtain the magnetic melamine hydrophobic oleophylic sponge. According to the invention, the silane coupling agent modified melamine sponge is prepared by adopting an impregnation method; the magnetic melaminehydrophobic oleophylic sponge is prepared through the ultrasonic method, the good performance of the adsorption material is guaranteed by fully utilizing the porous structure of the melamine sponge,and a sponge body is coated with the magnetic material in combination with the ultrasonic technology, so that the action between nano particles is weakened, and the action between the particles and the sponge body is enhanced. The magnetic melamine hydrophobic oleophylic sponge can be recycled through magnetic force, and the adsorption performance of sponge oil after multiple times of circulationis almost kept unchanged.

Description

technical field [0001] The invention belongs to the technical field of preparation of hydrophobic and lipophilic adsorption materials, and relates to a method for preparing a magnetic melamine hydrophobic and lipophilic sponge. Background technique [0002] The development and exploration of offshore oil resources will inevitably bring about the risk of oil spills and directly cause pollution to the ocean. Therefore, the control of offshore oil pollution has become a topic that must be taken seriously. At present, oil-absorbing materials have shown potential advantages in oil pollution control. [0003] Melamine sponge, also known as melamine sponge, is a new type of foam plastic with a high opening rate. It has a three-dimensional network structure, has a strong physical adsorption capacity, and also has excellent sound absorption, flame retardancy, Good properties such as thermal insulation and thermal stability. Melamine sponge has high adsorption performance, but it d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/40B01D17/022B01J20/26B01J20/28B01J20/30C08L61/28
CPCC08J9/40B01D17/0202B01J20/265B01J20/28009B01J20/28011B01J20/28054C08J2361/28
Inventor 姜炜宋欣郝嘎子胡玉冰肖磊张光普郭虎柯香
Owner NANJING UNIV OF SCI & TECH
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