摘要
采用发光细菌毒性测试技术,参照ASTM的WAF方法制备油类生物毒性测试样品液,对Cu、A、lZn、Ti 4种纳米金属添加剂的生物毒性进行了检测与评价。结果表明:纳米金属添加剂具有一定的生物毒性,且随加入的比例增加,润滑油生物毒性增大;不同润滑油中加入纳米金属添加剂,其生物毒性变化幅度不同;由于发光细菌对不同金属的敏感性和毒性作用机理不同,因此,4种纳米金属添加剂的毒性强弱亦不同,其中Zn、Cu的生物毒性较大;当多种纳米金属添加剂混合使用时,由于金属的协同作用,生物毒性明显增加。
In reference to ASTM water accommodation friction （WAF） for preparing ecotoxic testing sample solution, the ecotoxicity of four kinds of nanometal additives （ Cu, Al, Zn, Ti） were inspected and evaluated by applying luminescent bacteria. The results show that nanometal additives have certain amount of ecotoxicity, which is on the rise with the increased adding proportion. If nanometal additives are added into varied lubricants, their ecotoxicity changes differently. Owing to the difference of luminescent bacteria to sensitivity and toxicity mechanism of different metals, the ecotoxicity of 4 typical nanometal additives varies accordingly. Among them,Zn＇ s and Cu＇ s are relatively high in comparison with other mentioned metals. Due to synergistic effect of the metals,is the ecotoxicity increased dramatically if several kinds of nanometals mixed together.
出处
《润滑与密封》
EI
CAS
CSCD
北大核心
2006年第3期7-9,12,共4页
Lubrication Engineering
基金
中国石油化工集团公司资助项目(J100010)
