采用有机溶剂溶解溴化环氧树脂来分离废印刷电路板。
The separation of waste printed circuit board by dissolving bromine epoxy resin using organic solvent.
机构信息
College of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, People's Republic of China.
出版信息
Waste Manag. 2013 Feb;33(2):484-8. doi: 10.1016/j.wasman.2012.10.003. Epub 2012 Nov 21.
Separation of waste printed circuit boards (WPCBs) has been a bottleneck in WPCBs resource processing. In this study, the separation of WPCBs was performed using dimethyl sulfoxide (DMSO) as a solvent. Various parameters, which included solid to liquid ratio, temperature, WPCB sizes, and time, were studied to understand the separation of WPCBs by dissolving bromine epoxy resin using DMSO. Experimental results showed that the concentration of dissolving the bromine epoxy resin increased with increasing various parameters. The optimum condition of complete separation of WPCBs was solid to liquid ratio of 1:7 and WPCB sizes of 16 mm(2) at 145°C for 60 min. The used DMSO was vapored under the decompression, which obtained the regenerated DMSO and dissolved bromine epoxy resin. This clean and non-polluting technology offers a new way to separate valuable materials from WPCBs and prevent the environmental pollution of waste printed circuit boards effectively.
废弃印刷电路板（WPCBs）的分离一直是 WPCBs 资源处理的瓶颈。在这项研究中，使用二甲基亚砜（DMSO）作为溶剂来分离 WPCBs。研究了各种参数，包括固液比、温度、WPCB 尺寸和时间，以了解使用 DMSO 溶解溴化环氧树脂来分离 WPCBs 的情况。实验结果表明，随着各种参数的增加，溶解溴化环氧树脂的浓度也随之增加。完全分离 WPCBs 的最佳条件是在 145°C 下固液比为 1:7，WPCB 尺寸为 16mm(2)，时间为 60min。用过的 DMSO 在减压下蒸发，得到再生的 DMSO 和溶解的溴化环氧树脂。这种清洁无污染的技术为从 WPCBs 中分离有价值的材料提供了一种新方法，并有效防止了废弃印刷电路板对环境的污染。
Zotero 插件