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要对废旧塑料进行工业化回收利用,首要问题就是对其进行鉴别与分类。不同类型的废旧塑料由于其分子结构和官能团的不同,在近红外及中红外光的照射下,会呈现出不同的特征峰,从而能够对其种类进行识别。红外吸收分析技术具有效率高、灵敏度高、可靠性高、无损分析、应用广泛等特点。介绍了红外检测技术的原理及相关应用。
To recycle industrial waste plastics, the primary problem is to identify and classify them. Different types of waste plastics due to its different molecular structure and functional groups, in the near infrared and mid-infrared light irradiation, will show different characteristic peaks, which can identify their species. Infrared absorption analysis technology with high efficiency, high sensitivity, high reliability, non-destructive analysis, the application of a wide range of features. Introduced the principle of infrared detection technology and related applications.