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Durable superhydrophobic/superoleophilic PDMS sponges and their applications in selective oil absorption and in plugging oil leakages
文献类型：期刊论文
| 作者 | Zhao X(赵霞)1; Li LX(李凌霄)1,2; Li BC(李步成)2 ; Zhang JP(张俊平)2; Wang AQ(王爱勤)2; Zhang JP(张俊平)
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| 刊名 | Journal of Materials Chemistry A
 |
| 出版日期 | 2014 |
| 卷号 | 2期号:43页码:18281-18287 |
| ISSN号 | 2050-7488 |
| 通讯作者 | 张俊平 |
| 英文摘要 | A facile method for preparing porous polydimethylsiloxane (PDMS) sponges is reported. The PDMS sponges are fabricated by the polymerization of the PDMS prepolymer and a curing agent in dimethicone using NaCl microparticles as the hard templates. The porous structure of the PDMS sponges is controllable simply by regulating the weight ratio of prepolymer to dimethicone and the size of the NaCl microparticles. The PDMS sponges feature high compressibility and stretchability, excellent superhydrophobicity/superoleophilicity, as well as high chemical and thermal stability. The PDMS sponge can completely recover its original shape even after 50 cycles of 90% strain. The elongation at breaking the sponge is as high as 97%. The PDMS sponge is superhydrophobic with a water contact angle of 151.5° but can be easily wetted by oils. The sponge also exhibits excellent repellency to corrosive aqueous liquids. The flexibility and superhydrophobicity of the sponge remain unchanged even after keeping in liquid nitrogen or at 250 ℃ for 24 h. Long-term immersion in various organics has no obvious influence on superhydrophobicity, oil absorbency, or weight of the sponge. The PDMS sponge can selectively absorb a large amount of floating oils on the water surface and heavy oils under the water, and furthermore, is reusable. Moreover, the PDMS sponge swells quickly after the adsorption of oils, which makes it a promising material for plugging oil leakages. |
| 学科主题 | 环境材料与生态化学 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344380000019 |
| 公开日期 | 2014-12-08 |
| 源URL | [http://210.77.64.217/handle/362003/6872]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 通讯作者 | Zhang JP(张俊平) |
| 作者单位 | 1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao X,Li LX,Li BC,et al. Durable superhydrophobic/superoleophilic PDMS sponges and their applications in selective oil absorption and in plugging oil leakages[J]. Journal of Materials Chemistry A,2014,2(43):18281-18287. |
| APA | Zhao X,Li LX,Li BC,Zhang JP,Wang AQ,&张俊平.(2014).Durable superhydrophobic/superoleophilic PDMS sponges and their applications in selective oil absorption and in plugging oil leakages.Journal of Materials Chemistry A,2(43),18281-18287. |
| MLA | Zhao X,et al."Durable superhydrophobic/superoleophilic PDMS sponges and their applications in selective oil absorption and in plugging oil leakages".Journal of Materials Chemistry A 2.43(2014):18281-18287. |
入库方式： OAI收割
来源：兰州化学物理研究所
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