An oil spill recovery device
A technology of oil spill recovery and oil fence, which is applied in the direction of general water supply saving, other chemical processes, construction, etc. It can solve the problems of limited recovery capacity, easy to be affected by strong winds and waves, and reduce the area of the fence, so as to improve the service life and reduce the Effect of density, simple preparation process
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Embodiment 1
[0027] Example 1: Study unit graphene structure
[0028] A casting method, or suction on the deposition substrate, and then transferring the solid agent using the method of transferring the graphene film was peeled off, to give respectively different thickness of the transverse dimension of graphene nano 200um film of different thicknesses graphene nano-situ TEM film compression test results Figure 1 Indicated.
[0029] As can be seen from the figure, the thickness of 30nm or less, a graphene film showed only flexible but not elastic; 30-100nm at a thickness of graphene films exhibit elasticity and flexibility. Experiments show that, when the film thickness exceeds 100nm graphene above, macro-assembled film stress concentration easily damaged, while bonded to each other structural unit is deteriorated, is not conducive to the stability of the macroscopic properties of the material.
Embodiment 2
[0030] Of the oil absorbent material prepared: Example 2
[0031] (1) using a solution of oxidized graphene orientation cast into graphene oxide film is 95% or more, the size of the graphene oxide 20 ~ 40um, followed by chemical reduction with hydroiodic acid, so that the oxygen content is 10wt%;
[0032] (2) heating at 2 ℃ / min to a high temperature above 1400 deg.] C to give a film perspective airgel porous structure. The thickness of the airgel film is about 100um.
[0033] The prepared oil-absorbing material oleophilic and hydrophobic test, the oil-absorbing material and water affinity, completely absorbed oil, an oil absorption of 200 mass ratio.
[0034] figure 2 Is a partial schematic view of the oil absorbent material, it can be seen from the figure, the oil absorbent material constituting the graphene structure unit having a thickness of 30-100 nm, an area of graphene nano-films 100 ~ 40000μm2 graphene nano-films with other structural units occur cross-linked to form ...
Embodiment 3
[0036] Oil absorbent material is prepared: Example 3
[0037] (1) using a solution of oxidized graphene orientation cast into graphene oxide film is 95% or more, the size of the graphene oxide in 60 ~ 100um, followed by chemical reduction with hydroiodic acid, so that the oxygen content is 7.6%;
[0038] (2) Heating at 20 ℃ / min to over 1800 ℃ high-temperature treatment to obtain three-dimensional porous structure airgel film. The thickness of the airgel film is about 150um. Scanning test, a graphene structure composed of units of the airgel film having a thickness of 30-100 nm, an area of 100 ~ 40000μm 2 Graphene nano-films, graphene nano-films with other crosslinked structural units constituting the three-dimensional structure, that is, oil absorbent material. Wherein the heteroatom content graphene nano-film is 10wt% or less, the defect density I D / I G 0.02 or more.
[0039] The prepared material oleophilic and hydrophobic oil-absorbing test, the oil-absorbing material and...
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Abstract
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