改性聚氨酯海绵对柴油吸油效果分析

Effect of Modified Polyurethane Sponge on Diesel

摘要: 为了解改性后的聚氨酯海绵对柴油的吸油效果，用硬脂酸和棕榈酸浸涂聚氨酯海绵，制备了具有疏水亲油性质的聚氨酯海绵作为吸附材料。探究了改性时的反应时间、反应温度和改性剂用量对柴油在聚氨酯海绵上吸附效果的影响。实验结果表明，当改性反应时间为30 min，温度30℃，改性剂与聚氨酯海绵的质量比为0.06时，改性效果最佳，对柴油的吸附效果最好。改性后的聚氨酯海绵对柴油的最大吸附量达到14.60 g/g，硬脂酸作为改性剂的改性效果较棕榈酸好。

Abstract: In order to understand the oil absorption effect of modified polyurethane sponge on diesel oil, polyurethane sponge with hydrophobic and lipophilic properties was prepared by soaking in stearic acid and palmitic acid. The effects of contact time, temperature and amount of modifier used on diesel absorption onto polyurethane sponge in modificated reaction were studied, respectively. Results showed that when the modification time was 30 min, temperature was 30˚C, and the mass radio of modifier and polyurethane sponge ratio was 0.06, the result for adsorption of diesel onto polyurethane sponge was better than the other experimental conditions, and the maximum adsorption capacity for sponge was 14.60 g/g, and the modification effect of stearic acid was better than palmitic acid.