基于荧光拉曼双谱联用的塑料分选技术开发

Development of Plastics Classification Technology Based on the Combination of Fluorescence Spectrum and Raman Spectrum

同时使用1064 nm激光拉曼光谱仪和405 nm激光诱导荧光光谱仪,通过联用拉曼光谱和激光诱导荧光光谱,对常见塑料(HDPE、LDPE、PET、PP、PC、PPS、PE、PVC等)进行了分选。结果表明,借助双光谱联用及和谱库中的数据进行相关度对比,能够实现塑料分选,识别准确率为100%,为废旧塑料的有效回收提供了一种新颖的检测手段。

To separate the common kinds of plastics(HDPE,LDPE,PET,PP,PC,PPS,PE,PVC,ETC)by using Raman spectrum and laser-induced fluorescence spectrum(LIFS),the paper propose a method of combinating 1064 nm laser Raman spectrum and 405 nm laser fluorescence spectrum at the same time to identify the plastic.The results showed that the dual-spectrum combination method classify plastics very well by comparing the correlation with the data in the spectrum library.The recognition accuracy is nearly 100%,which provides a novel way to identify the plastic for the effective recycling of plastic waste.