摘要
The PHBV (beta-hydroxybutyrate-co-beta-hydroxyvalerate) foams as oil sorbentmaterials, which were prepared by salting out method based on PHBV and chloroform additive and theiroil pick-up abilities were investigated. And the oil pick-up abilities of different PHBV foams asoil sorbent materials were compared. The results show that with the amount of chloroform additiveand sodium chloride increasing, the oil pick-up rates, the oil-keeping rates and the second oilpick-up rates of PHBV foams can increase to different extent. When the amount of sodium chloride was92 percent, the ratio of PHBV to chloroform was 1 (g): 14 (mL), the oil pick-up ability of the PHBVfoam was optimal. And their oil pick-up ratios can reach 25.51 (26 deg C) and 27.51 g/g (17 deg C)in raw oil, which were 4-5 times more than those of PHBV powder. In addition, the structure-modifiedPHBV 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 sorbent materials willhave great perspective in the future.
The PHBV (beta-hydroxybutyrate-co-beta-hydroxyvalerate) foams as oil sorbentmaterials, which were prepared by salting out method based on PHBV and chloroform additive and theiroil pick-up abilities were investigated. And the oil pick-up abilities of different PHBV foams asoil sorbent materials were compared. The results show that with the amount of chloroform additiveand sodium chloride increasing, the oil pick-up rates, the oil-keeping rates and the second oilpick-up rates of PHBV foams can increase to different extent. When the amount of sodium chloride was92 percent, the ratio of PHBV to chloroform was 1 (g): 14 (mL), the oil pick-up ability of the PHBVfoam was optimal. And their oil pick-up ratios can reach 25.51 (26 deg C) and 27.51 g/g (17 deg C)in raw oil, which were 4-5 times more than those of PHBV powder. In addition, the structure-modifiedPHBV 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 sorbent materials willhave great perspective in the future.
