三种典型医疗废物热解过程的差热分析  

Differential thermal analysis during the thermal decomposition of three typical medical wastes

作　　者：马洪亭[1] 王芳超[1] 杨国利[1] 郝夙枫[1] 王明辉[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072

出　　处：《化工进展》2012年第4期933-937,共5页Chemical Industry and Engineering Progress

基　　金：天津市自然科学基金(09JCYBJC08100);国家973计划(2009CB219900);长江学者和创新团队发展计划(IRT0936)项目

摘　　要：用TG-DTA差热热重联用分析仪在升温速率为20℃/min、高纯氮气流量为20 mL/min的气氛条件下对输液袋、卫生纸和注射器3种典型医疗废物试样进行了热解实验和差热分析。结果表明,几种试样热解过程均为吸热反应,而且实验测得的DTA曲线的形状比较复杂,对称性较差,基线偏移较大;在医疗废物的热解过程中,最大失重速率发生点的温度一般要比达到瞬时热平衡点的温度稍低。The thermal decomposition and differential thermal analysis process of three typical medical wastes（infusion bag,toilet paper,injector）were experimentally investigated by using the TG-DTA apparatus,the samples were heated at 20℃/min in 20 mL/min nitrogen flow.The results show that the thermal decomposition of medical waste is a heat-absorption process.The curve shape is complex,and non-symmetric.There is a significant deviation in base line.The temperature for the maximum weight loss rate is lower than that for the instantaneous thermal balance.

关 键 词：典型医疗废物 热失重特性 差热分析 

分 类 号：O621.259[理学—有机化学] X705[理学—化学]