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为了对预浸布进行快速检测,采用近红外漫反射的方法对高硅氧/酚醛预浸布,碳/酚醛预浸布中的树脂含量、可溶树脂含量和挥发份含量进行在线监测,三项指标同时显示。通过偏最小二乘方法分别建立标准模型,用模型的评价指标评价,分析未知样品。用近红外方法在1m in之内同时分析出结果,没有破坏性。用近红外的测定结果和标准方法的测定结果相比,两者不存在显著性差异。近红外光谱的方法可以应用在酚醛预浸料生产线上。
In order to detect the prepreg rapidly, the method of near-infrared diffuse reflectometry was used to monitor the content of resin, soluble resin and volatile in the high silicon / phenolic prepreg, carbon / phenolic prepreg, Indicators also show. The standard model was established by partial least square method, and the model evaluation index was used to evaluate the unknown samples. Using near-infrared method within 1m in at the same time analyze the results, no destructive. Compared with the results of the standard method, there is no significant difference between the two methods. Near-infrared spectroscopy methods can be used in phenolic prepreg production lines.