Graphite powder-butyl rubber composite frozen gel oil absorption material and preparation method thereof
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A kind of technology of butyl rubber and oil absorbing material
Inactive Publication Date: 2013-07-17
SHANGHAI UNIV
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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 us
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[0023] Example 1
[0024] (1) Cut the butyl rubber into small pieces, weigh 5 g (5%, w / v) and dissolve in 100 mL of benzene, add a stir bar, and react overnight under magnetic stirring to disperse the rubber's benzene solution evenly.
[0025] (2) Weigh 0.025 g (0.5%, w / w) graphite powder, use 10 mL of benzene for ultrasonic dispersion, pour it into the above reaction solution, and stir evenly. Then add the crosslinking agent S dropwise under stirring 2 Cl 2 3.0mL (6 %, v / w), divide the mixture into test tubes with stoppers, and then react in a low temperature constant temperature reaction tank at -5°C for 24 hours.
[0026] (3) After the reaction is completed, take out the test tube and melt for 30 minutes at room temperature. Extrude the solvent benzene from the material and wash it 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 mate...
Example Embodiment
[0032] Example 2
[0033] (1) Cut butyl rubber into small pieces, weigh 5g (5%, w / v) and dissolve in 100mL benzene, add a stir bar, and react overnight under magnetic stirring to disperse the benzene solution of the rubber evenly.
[0034] (2) Weigh 0.05g (1%, w / w) graphite powder, use 10mL of benzene for ultrasonic dispersion, pour it into the above reaction solution, and stir evenly. Then add the crosslinking agent S dropwise under stirring 2 Cl 2 3.0mL (6%, v / w), divide the mixture into test tubes with stoppers, and then react in a low-temperature thermostat reaction tank at -2°C for 24 hours.
[0035] (3) After the reaction is completed, take out the test tube and melt for 30 minutes at room temperature. Extrude the solvent benzene from the material and wash it 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 is immersed in ...
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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...
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