Polyurethane sponge loaded with hybridized graphene coating and preparation method of polyurethane sponge

A technology of polyurethane sponge and graphite coating, applied in chemical instruments and methods, inorganic chemistry, alkali metal compounds, etc., can solve problems such as hydrophilicity

Active Publication Date: 2015-01-21
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane sponge is being widely used in the development of oil-absorbing materials as a high-efficie

Method used

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  • Polyurethane sponge loaded with hybridized graphene coating and preparation method of polyurethane sponge
  • Polyurethane sponge loaded with hybridized graphene coating and preparation method of polyurethane sponge
  • Polyurethane sponge loaded with hybridized graphene coating and preparation method of polyurethane sponge

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[0029] For the preparation method of micron zinc oxide used in the present invention, please refer to: Segovia M., Lemus K., Moreno M., Ana MAS, Gonzalez G., Ballesteros B., Sotomayor C., Benavente E. Zinc oxide / carboxylic acid lamellar structures . Mater. Res. Bull. 2011, 46(11): 2191-2195.

[0030] For the preparation method of graphite oxide used in the present invention, please refer to: Singh, E., Chen, Z., Houshmand, F., Ren, W., Peles, Y., Cheng, HM and Koratkar, N. Superhydrophobic graphene foams. Small . 2013, 9(1): 75-80.

Example Embodiment

[0031] Example 1: (please supplement the specific process of preparing polyurethane sponge loaded with hybrid graphite coating)

[0032] 1) Preparation of graphene oxide (GO). The main method is to add 2g graphite to a 500ml beaker, and then add 50ml concentrated H 2 SO 4 Add to it and cool to 0 in an ice bath o C; then 6g KMnO 4 Add slowly, allow it to rise to room temperature, and place the suspension at 35 oC Continue stirring for 2h under ice water; add 350ml deionized water to dilute after cooling under ice water; add 30% H 2 O 2 Manganese ions are reduced until the gas volatilizes; finally, the resulting suspension is filtered, rinsed with 1mol / L HCl once, rinsed with deionized water twice, and then heated at 60 oC Dry for 24 hours to obtain brown GO powder.

[0033] 2) Low temperature synthesis of micron ZnO. At 60 oC 2.97g Zn(CH 3 COO) 2 ·H 2 O was added to 125ml methanol, the same at 60 oC Dissolve 1.5g KOH in 65ml methanol, add it to Zn(CH 3 COO) 2 ·H 2 In the methanol so...

Example Embodiment

[0035] Example 2: Determination of Hydrophobic and Lipophilic Effect of Polyurethane Sponge Loaded on Hybrid Graphene

[0036] 1) Measurement of contact angle-the measurement of contact angle of a material can be used to show the affinity of the material to water and oil. Cut the material into flat sections and place it on a glass slide, then place the glass slide on the contact angle measuring instrument, adjust the sample position and the focal length of the microscope lens to make the surface of the material clearly visible, and control the injection needle to drop a drop of water / oil , And then calculate the contact angle value by fitting the shape image of the droplet obtained by the microscope lens and the camera, using the instrument's own software. The degree of affinity for water and oil of the material can be judged by the value of the contact angle: when the contact angle of the material to water reaches 150°, it means that the material is superhydrophobic; when th...

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Abstract

The invention discloses a polyurethane sponge loaded with a hybridized graphene coating and a preparation method of the polyurethane sponge. The sponge is formed by loading the micrometer zinc oxide hybridized graphene coating on a polyurethane sponge, and the thickness of the coating is 0.3-0.8mm; the mass ratio of zinc oxide to graphene is 5 percent. According to the test of the hydrophobic effect and the oil absorption ability of the loaded sponge, an experiment shows that the hydrophilia of the sponge turns into high hydrophobicity (a contact angle is 147.9 degrees), the oil adsorption ability of the sponge is obviously increased, and the saturated adsorption quantity of the sponge on diesel reaches 28.01g. Graphene which is modified with hybridized micrometer zinc oxide and graphene oxide is loaded on the sponge, so that the hydrophobic and lipophilic property of the polyurethane sponge is improved; therefore, the effective preparation method for oil polluted water body remediation is provided.

Description

technical field [0001] The invention relates to a polyurethane sponge loaded with a hybrid graphene coating and a preparation method thereof. Background technique [0002] In the process of large-scale exploitation, smelting, transportation, use and treatment of oil, accidents such as pollution, omission, blowout, and oil pipeline leakage occur frequently. Oil entering water bodies causes river and ocean pollution, and its surface evaporation can cause air pollution. At the same time Condensed oil on the surface of the water body may also burn and cause safety problems. The more serious potential harm is that oil not only pollutes the surface water body, causing harm to marine aquatic animals and plants, but also sinks to the seabed, and the harm is inestimable. So the harmful consequences of oil pollution often last for many years, causing some chronic problems for marine aquatic plants and animals, including changes in feeding, reproductive patterns, abnormal behavior and...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30B01J20/28C01G9/02
CPCB01J20/3212
Inventor 刘晓艳李辈辈张新颖柴文波侯芸芸顾玲峰马怡宁
Owner SHANGHAI UNIV
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