Triboelectrostatic separation of ABS, PS and PP plastic mixture
Triboelectrostatic separation of ABS, PS and PP plastic mixture
复制标题
DOI：
10.2320/matertrans.44.161
复制
发表时间：
2003-01-01
影响因子：
1.2
通讯作者：
Fujita, T
中科院分区：
文献类型：
--
作者：
Dodbiba, G;Shibayama, A;Fujita, T
本研究的目的是摩擦静电分离三种成分（即 ABS、PS 和 PP 混合物）的人造塑料混合物。混合物通过摩擦旋流器中的摩擦而带电。在摩擦旋流器内经过给定的时间后，带电的塑料薄片通过水平电场自由落入收集箱中。使用两个由铜制成且具有给定横截面配置的平行板电极产生最大 400 kV/m 的直流电场。根据电荷的极性，混合物的塑料薄片被吸引到正极或负极，并通过放入不同的容器中进行分离。三组分混合物的纯化是通过两步摩擦静电过程完成的。批量实验室摩擦静电分离器的分离测试表明，分离效率很大程度上取决于摩擦起电时间、空气入口速度和电场强度。 ABS、PS、PP产品品位分别达到92.1%、84.9%和90.0%，回收率达到73.0%。
The objective of this study was to triboelectrostatically separate artificial plastic mixture of three kinds of components (i.e, ABS, PS and PP mixture). The mixture is charged by friction in tribo-cyclone. After a given period of time inside the tribo-cyclone, the charged plastic flakes fell down freely through a horizontal electric field into collection bins, The DC electric field of maximum 400 kV/m is created by using two parallel plate electrodes made of Cu and having a given cross-section configuration. The plastic flakes of the mixtures are drawn to either positive or negative electrode according to the polarity of the charge and are separated by failing in different bins. The purification of three-component mixture is accomplished by a two-step triboelectrostatic process. Separation tests in a batch laboratory triboelectrotatic separator showed that the efficiency of the separation is strongly depended on tribocharging time, air inlet velocity, and electric field strength. Products of ABS, PS and PP with a grade of 92.1%, 84.9% and 90.0% respectively have been achieved with recoveries abode 73.0%.