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Graphite powder-butyl rubber composite frozen gel oil absorption material and preparation method thereof

A kind of technology of butyl rubber and oil absorbing material

Inactive Publication Date: 2013-07-17
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the oil-absorbing resins are lumpy or granular, and this kind of material is not easy to reuse, and the resin after oil-absorbing is difficult to deal with, so its application is limited.
[0005] At present, the most commonly used oil-absorbing felt is a superfine fiber absorbent material made of polypropylene, which is suitable for dealing with large-area crude oil spills, but there are many disadvantages in use: the processing time is long, and it cannot be reused.

Method used

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  • Graphite powder-butyl rubber composite frozen gel oil absorption material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Shred butyl rubber, weigh 5g (5%, w / v) and dissolve it in 100mL benzene, add a stir bar, react overnight under magnetic stirring, and disperse the benzene solution of rubber evenly.

[0025] (2) Weigh 0.025 g (0.5%, w / w) of graphite powder, ultrasonically disperse it with 10 mL of benzene, pour it into the above reaction solution, and stir evenly. Then add the crosslinker S dropwise under stirring 2 Cl 2 3.0mL (6%, v / w), the mixture was dispensed into stoppered test tubes, covered and reacted at -5°C for 24 hours in a low-temperature constant temperature reaction tank.

[0026] (3) After the reaction is complete, take out the test tube and melt at room temperature for 30 minutes. Squeeze out the solvent benzene in the material, and wash alternately with toluene and methanol, at least twice each.

[0027] (4) Dry in a fume hood at room temperature to obtain the oil-absorbing material.

[0028] The obtained fully dried oil-absorbing material is immersed in water,...

Embodiment 2

[0033] (1) Shred butyl rubber, weigh 5g (5%, w / v) and dissolve it in 100mL benzene, add a stirrer, react overnight under magnetic stirring, and disperse the benzene solution of rubber evenly.

[0034] (2) Weigh 0.05g (1%, w / w) graphite powder, ultrasonically disperse it with 10mL benzene, pour it into the above reaction solution, and stir evenly. Then add the crosslinker S dropwise under stirring 2 Cl 2 3.0mL (6%, v / w), the mixture was divided into stoppered test tubes, covered and reacted at -2°C for 24 hours in a low-temperature constant temperature reaction tank.

[0035] (3) After the reaction is complete, take out the test tube and melt at room temperature for 30 minutes. Squeeze out the solvent benzene in the material, and wash alternately with toluene and methanol, at least twice each.

[0036] (4) Dry in a fume hood at room temperature to obtain the oil-absorbing material.

[0037] The obtained fully dried oil-absorbing material was immersed in water and methanol ...

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Abstract

The invention relates to a graphite powder-butyl rubber composite frozen gel oil absorption material and a preparation method thereof. The oil absorption material is crosslinked with butyl rubber under the action of S2Cl2 serving as a cross-linking agent to form a three-dimensional net porous gel material with intercommunicated pore structure, wherein the aperture is 20-50 microns; the thickness of the pore wall is 20-30 microns; the graphite powder is evenly dispersed into the three-dimensional net porous gel material; the mass of the graphite powder is 0.5-2% of that of butyl rubber; and the volume mass ratio of the cross-linking agent to butyl rubber is 6ml to 100g. The composite material disclosed by the invention is small in density, large in adsorption capacity and fast in adsorption speed, can absorb various oil products, can be repeatedly used by simple centrifuging or extruding treatment, effectively reduces the cost, and is a novel environment-friendly material. The composite frozen gel oil absorption material is wide in application, and can be used as a slow-release base material, a filter material and the like except for recovery of water oil spilling at sea or land and oily wastewater treatment.

Description

technical field [0001] The invention relates to a cryogel oil-absorbing material and a preparation method thereof, in particular to a graphite powder-butyl rubber composite cryogel oil-absorbing material and a preparation method thereof. Background technique [0002] In recent years, leakage accidents of oil tankers and oil tanks, including the discharge of sewage containing oil or other insoluble organic substances, accidents in large-scale chemical plants, chemical raw material warehouses and other centralized storage places for chemical products have caused serious damage to the soil, rivers, oceans and surrounding environments. Pollution has become a growing problem. [0003] In order to quickly and effectively treat the polluted oil that has leaked into the environment, minimize the environmental pollution caused by the polluted oil, and at the same time, in order to eliminate the environmental pollution caused by domestic oil, it is urgent to develop high-efficiency oi...

Claims

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Application Information

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IPC IPC(8): B01J20/291B01J20/30
Inventor 刘晓艳胡艳邹君臣张新颖柴文波陈雯王聿曦李辈辈
Owner SHANGHAI UNIV
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