摘要
用电路板做为研究对象,去除其电子元件和金属元件,用钳子分解为直径为3 mm左右的碎片。用热重-差热分析仪对其进行热解,考察了热解温度、气氛流速、升温速率对热解的影响。结果表明,升温速率为影响电路板热解最重要的因素,升温速率慢有利于电路板的热解,热解时间越久热解越完全,热解率随着气流速度的增大而先上升后下降。废旧电路板的主要热解温度在350~700℃。
The pyrolysis of different kinds of waste printed circuit boards （ PCBs ） was investigated through TG technology.The effects of pyrolysis temperature , flow rate of nitrogen and heating rate on the pyrolysis behavior of PCBs were studied.The results showed that the heating rate had remarkable effect on the pyrolysis process and lower heating rate was benefit of the pyrolyiss.The most pyrolysis process was occurred at about 330~700 ℃for all of PCBs.
出处
《广州化工》
CAS
2014年第18期91-92,102,共3页
GuangZhou Chemical Industry
基金
2013年地方高校国家级大学生创新创业训练计划项目"含多溴联苯醚电子废弃物的热解处理研究"(200310349004)
关键词
热解
影响因素
温度
氮气
速率
printed circuit board,pyrolysis
thermogravimetry
