PET,PBT纤维混合物的DSC定性定量分析研究

Research on Qualitative and Quantitative Analysis of PET,PBT Fibers Mixture by Differential Scanning Calorimetry

利用差示扫描量热法(DSC)分别测定了PET纤维、PBT纤维及两者混合物的DSC曲线,通过比较他们各自的特点与两者之间的差异,对两种纤维进行了定性分析。同时研究了热效应峰的热焓与样品组成的线性关系,建立了PET纤维和PBT纤维混合物的定量分析函数模型。试验表明,差示扫描量热法可以准确有效地对PET纤维和PBT纤维进行定性定量分析。

The DSC curves of PET fiber, PBT fiber and their mixtures were determined by differential scanning calorimetry, two kinds of fibers were qualitatively analyzed by comparing their characteristics and differences. The quantitative analytic models of the mixture of PET fiber and PBT fiber was established through the investigation of the linear relations between enthalpy of heat effect peak and composition of the samples. The experimental results showed that differential scanning calorimetry could be used for quantitative analysis of the mixtures of PET fiber and PBT fiber accurately.