|
|||||
|
|
| TN型液晶焚烧产物及其反应机理 | |
| 引用本文： | 郭玉文,刘景洋,乔琦,梁继军,张建强. TN型液晶焚烧产物及其反应机理[J]. 深圳大学学报(理工版), 2010, 27(1) |
| 作者姓名： | 郭玉文 刘景洋 乔琦 梁继军 张建强 |
| 作者单位： | 1. 中国环境科学研究院,北京,100012 2. 中国环境科学研究院,北京,100012;西南交通大学环境科学与工程学院,成都,610031 3. 西南交通大学环境科学与工程学院,成都,610031 |
| 基金项目： | 环境保护部公益基金，中国环境科学研究院科研业务专项基金 |
| 摘 要： | 在研究TN型液晶焚烧失重特征,分析其焚烧产物的基础上,探讨了TN型液晶焚烧反应机理.结果表明,TN型液晶焚烧过程易导致单体化合物苯甲酰基C-O键、与苯环侧链甲基相连烃基之间C-C键断裂,生成大量烃基、苯甲酰基等自由基团,该自由基团随温度升高进一步发生分解反应、合成反应及过程产物燃烧反应,这些过程主要发生在410 ℃以内.指出TN型液晶焚烧产物绝大多数是芳香族有机物,易对人体健康和环境造成威胁,TN型液晶显示器不宜混同生活垃圾一起焚烧,应单独回收处理. |
| 关 键 词： | 环境化学 有机污染物 TN型液晶 垃圾焚烧 |
Reaction mechanism of TN liquid crystal in incineration and its product assay |
|
| GUO Yu-wen,LIU Jing-yang,QIAO Qi,LIANG Ji-jun,ZHANG Jian-qiang. Reaction mechanism of TN liquid crystal in incineration and its product assay[J]. Journal of Shenzhen University(Science &engineering), 2010, 27(1) | |
| Authors: | GUO Yu-wen LIU Jing-yang QIAO Qi LIANG Ji-jun ZHANG Jian-qiang |
| Affiliation: | GUO Yu-wen1,LIU Jing-yang1,QIAO Qi1,LIANG Ji-jun1,2,, ZHANG Jian-qiang2 1)Chinese Research Academy of Environmental Sciences,Beijing 100012 P.R.China2)School of Environmental Science , Engineering Southwest Jiaotong University Chengdu 610031 P.R.China |
| Abstract: | The incineration reaction mechanism of TN liquid crystal was studied by analysis of weight loss character and production of incineration process.Research results indicate that the bonds of C-O of benzoyl of monomer compound and C-C between methyl of benzene ring side chain and alkyl were easily cleaved. Abundance of free radical of alkyl,benzoyl etc were formed and decomposition reaction,synthesis reaction and combustion reaction of process production occurred with temperature rising. These reactions occurred mostly under 410 ℃.Most of the incineration products were aromatic organic compounds, all of which can threaten human health and pollute the environment.The TN-LCD should be recycled and treated separately.It should not be incinerated together with urban domestic garbage. |
| Keywords: | environmental chemistry organic pollutants twisted nematic liquid crystal incineration |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |