| Durable superhydrophobic/superoleophilic PDMS sponges and their applications in selective oil absorption and in plugging oil leakages | |
| Department | 环境材料与生态化学研究发展中心 |
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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| 2014 | |
| Source Publication | Journal of Materials Chemistry A
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| ISSN | 2050-7488 |
| Volume | 2Issue:43Pages:18281-18287 |
| Abstract | 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. |
| Subject Area | 环境材料与生态化学 |
| DOI | 10.1039/c4ta04406a |
| Indexed By | SCI |
| If | 7.443 |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/6872 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | Zhang JP(张俊平) |
| Affiliation | 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 |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1.pdf（630KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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