毒理性
识别和使用:ABS树脂是一种由丙烯腈、丁二烯和苯乙烯制成的塑料材料。它用于管道、汽车部件、家电部件、商业机器部件、电话和电气及电子设备、管道配件、娱乐车辆部件。丙烯腈-丁二烯-苯乙烯共聚物的其他用途包括包装;行李箱和箱子;玩具和体育用品;以及家具。自1977年9月以来,不允许使用丙烯腈-丁二烯-苯乙烯共聚物制造饮料容器。人类暴露和毒性:在台湾进行的一项流行病学研究发现,ABS塑料注塑成型过程可能会加剧工人的嗅觉功能下降。值得注意的是,这种效应降低了嗅觉阈值评分,而不是气味识别评分。动物研究:ABS降解产品的急性毒性被发现与其他常见聚合物材料的热分解产物的毒性相当。大鼠暴露于热氧化降解产物会导致肝脏和肾脏组织中还原型谷胱甘肽浓度降低,但肺部不会。在三天暴露期间,肝脏和大脑中的超氧化物歧化酶活性增加。在两周的暴露后,肝脏的活性达到了对照组的值,但大脑的活性显著低于对照组。在豚鼠中,反复暴露会导致感官刺激、咳嗽、呼吸道收缩和死亡,并且有累积性呼吸道影响的证据,幸存者的恢复较慢。在老鼠中,从ABS树脂烟雾暴露中恢复的速度比从用作比较的道格拉斯冷杉木片烟雾暴露中恢复的速度慢。
IDENTIFICATION AND USE: ABS resin is a plastic material made from acrylonitrile, butadiene and styrene. It is used in piping, automotive components, appliance components, components of business machines, telephones and electrical and electronic equipment, pipe fittings, recreational vehicle components. Other uses of acrylonitrile-butadiene-styrene copolymers include packaging; luggage and cases; toys and sporting goods; and furniture. Since September 1977, acrylonitrile-butadiene-styrene copolymers are no longer permitted in the fabrication of beverage containers. HUMAN EXPOSURE AND TOXICITY: The findings of epidemiology study conducted in Taiwan implied the ABS plastic injection-moulding process may worsen olfactory function among workers. Notably, this effect decreased olfactory threshold scores, not odor identification scores. ANIMAL STUDIES: The acute toxicity of ABS degradation products was found to be comparable with the toxicity of the thermal decomposition products of other common polymeric materials. Rats exposure to thermo-oxidation degradation products produced a decrease in tissue reduced glutathione concentration in liver and kidney but not in lung. Superoxide dismutase activity increased in liver and brain during the three-day exposure. In liver the activity reached the control value after the two-week exposure but the cerebral activity was significantly lower than in controls. In guinea pigs repeated exposure resulted in sensory irritation, coughing, and airways constriction and deaths, and there was evidence of cumulative respiratory effects, and slower recoveries among survivors. In mice recovery from the effects of exposure to ABS resin smoke was slower than recovery from exposure to smoke from Douglas fir chips, which was used as a comparison.
来源:Hazardous Substances Data Bank (HSDB)