胆碱羧酸离子液体润滑剂的毒性研究

Study on Toxicity of Choline Carboxyl Ionic Liquid Lubricants

近年来,离子液体润滑剂在各个领域运用都非常广泛,环保型的离子液体润滑剂研究也成为了润滑剂领域的重要研究方向之一,毒性的大小作为衡量离子液体是否环保的标准,更是被人们所重视。文章以水生生物海虾和绿藻为试验对象,对实验室所合成的5种胆碱羧酸离子液体的毒性大小进行研究,并与传统离子液体1-丁基-3-甲基咪唑四氟硼酸盐(L-B104)进行对比,以海虾的半致死浓度LD50和绿藻的半抑制浓度EC50评价这些胆碱羧酸离子液体毒性大小。实验结果表明,5种胆碱羧酸离子液体的毒性明显低于对照样L-B104,从而可以证明胆碱羧酸离子液体润滑剂的毒性很小,属于环保型的离子液体润滑剂。

In recent years,ionic liquid lubricants have been widely used in various fields.The research of environment-friendly ionic liquid lubricants has also become an important research direction in the field of lubricants.The size of toxicity is used as a standard to measure the environmental protection of ionic liquids.It is even more valued by people.In this paper,aquatic organisms such as sea shrimp and green algae were used as test objects to study the toxicity of five kinds of choline carboxylic acid ionic liquids synthesized in laboratory,and compared with traditional ionic liquid 1-butyl-3-methylimidazolium tetrafluoride.The borates(LB104)were compared to evaluate the cholesteric carboxylic acid ionic liquid toxicity by the semi-lethal concentration LD50 of sea shrimp and the semi-inhibitory concentration EC50 of green algae.The experimental results showed that the toxicity of the five choline carboxylic acid ionic liquids was significantly lower than that of the control L-B104,which proved that the toxicity of choline carboxylic acid ionic liquid lubricant was very small and it was an environmentally friendly ionic liquid lubricant.