电子垃圾中液晶的回收利用

IF 1.2 Q4 ENGINEERING, ENVIRONMENTAL Detritus Pub Date : 2022-12-31 DOI:10.31025/2611-4135/2022.17231
Ana Barrera, C. Binet, F. Dubois, P. Hébert, P. Supiot, C. Foissac, U. Maschke
{"title":"电子垃圾中液晶的回收利用","authors":"Ana Barrera, C. Binet, F. Dubois, P. Hébert, P. Supiot, C. Foissac, U. Maschke","doi":"10.31025/2611-4135/2022.17231","DOIUrl":null,"url":null,"abstract":"For several decades, Liquid Crystal Displays (LCDs) have been widely used in televisions, laptops, mobile phones, and other devices. Nowadays, liquid crystals (LCs) represent an important economic value of the recycling system of LCDs. The reuse of these organic molecules could become a profitable basis since it permits to preserve the value of these materials. In this context, the general objective of this work focuses on the recovery of LCs as well as on other valuable materials present in end-of-life LCDs. An orderly, manual LCD dismantling line is put into operation for differentiated recycling of electronic boards, cold cathode lamps that may contain mercury, polymers, metals, and other valuable materials. There is also an extraction line where LCD panels are opened and exposed to an ultrasonically activated organic solvent bath to recover LCs. The resulting solution contains LCs, solvent, organic and inorganic impurities. The LCs mixtures were purified and then characterized mainly by spectroscopic, chromatographic, and thermal techniques. A study of the influence of adding diamond nanoparticles at 0.05, 0.1 and 0.2 wt% to recycled LCs was also performed using dielectric spectroscopy. Dielectric properties of LCs were measured at room temperature, using an impedance analyzer in the frequency range from 0.1 to 106 Hz.","PeriodicalId":44191,"journal":{"name":"Detritus","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"RECYCLING OF LIQUID CRYSTALS FROM E-WASTE\",\"authors\":\"Ana Barrera, C. Binet, F. Dubois, P. Hébert, P. Supiot, C. Foissac, U. Maschke\",\"doi\":\"10.31025/2611-4135/2022.17231\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"For several decades, Liquid Crystal Displays (LCDs) have been widely used in televisions, laptops, mobile phones, and other devices. Nowadays, liquid crystals (LCs) represent an important economic value of the recycling system of LCDs. The reuse of these organic molecules could become a profitable basis since it permits to preserve the value of these materials. In this context, the general objective of this work focuses on the recovery of LCs as well as on other valuable materials present in end-of-life LCDs. An orderly, manual LCD dismantling line is put into operation for differentiated recycling of electronic boards, cold cathode lamps that may contain mercury, polymers, metals, and other valuable materials. There is also an extraction line where LCD panels are opened and exposed to an ultrasonically activated organic solvent bath to recover LCs. The resulting solution contains LCs, solvent, organic and inorganic impurities. The LCs mixtures were purified and then characterized mainly by spectroscopic, chromatographic, and thermal techniques. A study of the influence of adding diamond nanoparticles at 0.05, 0.1 and 0.2 wt% to recycled LCs was also performed using dielectric spectroscopy. Dielectric properties of LCs were measured at room temperature, using an impedance analyzer in the frequency range from 0.1 to 106 Hz.\",\"PeriodicalId\":44191,\"journal\":{\"name\":\"Detritus\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2022-12-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Detritus\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31025/2611-4135/2022.17231\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Detritus","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31025/2611-4135/2022.17231","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 4

摘要

几十年来,液晶显示器(LCD)已被广泛用于电视、笔记本电脑、手机和其他设备。目前,液晶(LCD)在LCD回收系统中具有重要的经济价值。这些有机分子的再利用可能成为一个有利可图的基础,因为它可以保持这些材料的价值。在这种情况下,这项工作的总体目标集中在液晶显示器的回收以及报废液晶显示器中存在的其他有价值的材料上。一条有序的手动LCD拆卸生产线投入运营,用于对可能含有汞、聚合物、金属和其他贵重材料的电子板、冷阴极灯进行差异化回收。还有一条提取线,其中LCD面板被打开并暴露于超声活化的有机溶剂浴中以回收LC。所得溶液含有LC、溶剂、有机和无机杂质。对LCs混合物进行纯化,然后主要通过光谱、色谱和热技术进行表征。还使用介电光谱研究了向回收的LC中添加0.05、0.1和0.2 wt%的金刚石纳米颗粒的影响。在室温下,使用阻抗分析仪在0.1至106Hz的频率范围内测量LC的介电特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
RECYCLING OF LIQUID CRYSTALS FROM E-WASTE
For several decades, Liquid Crystal Displays (LCDs) have been widely used in televisions, laptops, mobile phones, and other devices. Nowadays, liquid crystals (LCs) represent an important economic value of the recycling system of LCDs. The reuse of these organic molecules could become a profitable basis since it permits to preserve the value of these materials. In this context, the general objective of this work focuses on the recovery of LCs as well as on other valuable materials present in end-of-life LCDs. An orderly, manual LCD dismantling line is put into operation for differentiated recycling of electronic boards, cold cathode lamps that may contain mercury, polymers, metals, and other valuable materials. There is also an extraction line where LCD panels are opened and exposed to an ultrasonically activated organic solvent bath to recover LCs. The resulting solution contains LCs, solvent, organic and inorganic impurities. The LCs mixtures were purified and then characterized mainly by spectroscopic, chromatographic, and thermal techniques. A study of the influence of adding diamond nanoparticles at 0.05, 0.1 and 0.2 wt% to recycled LCs was also performed using dielectric spectroscopy. Dielectric properties of LCs were measured at room temperature, using an impedance analyzer in the frequency range from 0.1 to 106 Hz.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Detritus
Detritus ENGINEERING, ENVIRONMENTAL-
CiteScore
3.30
自引率
23.50%
发文量
45
审稿时长
15 weeks
期刊最新文献
CIRCULAR ECONOMY: AN HONEST APPROACH BOOKS REVIEW Detritus & Art THE PRESENCE OF PFAS IN WASTES AND RELATED IMPLICATIONS ON THE CURRENT AND PROPOSED EUROPEAN REGULATORY FRAMEWORK: A SYSTEMATIC CRITICAL REVIEW WASTE EGGSHELLS AS CATALYSTS: AN ENVIRONMENTALLY-FRIENDLY APPROACH
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1