| 摘要 |
Oil spills can be more effectively concentrated, collected, and controlled by employing a durable, rapidly spreading, water-insoluble surface film comprised of a fluorochemical. The fluorochemical agent has a density greater than water, a solubility of less than 0.01% in water, a spreading pressure preferably of >50 dynes/cm at <10 mg/m2, and is applied with a diluent to form a highly mobile film under actual field conditions. Useful fluorochemicals are those of the formula (Rf)nTmZr, wherein Rf is a perfluorinated aliphatic group, T is a connecting group, and Z is a neutral or polar group; n is 1 or 2, m is 0 or 1, and r is 1 or 2. The film is especially effective under adverse environmental conditions, and in combination with mechanical clean-up devices.
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