Structure-modification and oil pick-up ability of PHBV as oil sorbent materials

Xuwen He, Dayi Qian, Bing Wu, and Tong WangChemical and Environmental Engineering School, China University of Mining and Technology, Beijing 100083, ChinaCivil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China

摘 要：<正> The PHBV （β-hydroxybutyrate-co-β-hydroxyvalerate） foams as oil sorbent materials, which were prepared by salting out method based on PHBV and chloroform additive and their oil pick-up abilities were investigated. And the oil pick-up abilities of different PHBV foams as oil sorbent materials were compared. The results show that with the amount of chloroform additive and sodium chloride increasing, the oil pick-up rates, the oil-keeping rates and the second oil pick-up rates of PHBV foams can increase to different extent. When the amount of sodium chloride was 92%, the ratio of PHBV to chloroform was 1 （g）: 14 （mL）, the oil pick-up ability of the PHBV foam was optimal. And their oil pick-up ratios can reach 25.51 （26℃） and 27.51 g/g （17℃） in raw oil, which were 4-5 times more than those of PHBV powder. In addition, the structure-modified PHBV as oil sorbent materials also has some advantages, such as three-dimension structure, bio-degradability and good oil pick-up ability, so this kind of green oil s

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