论文部分内容阅读
用差示扫描量热仪(DSC)研究PBSA和PBSA/膨胀型石墨/水滑石复合材料的非等温结晶过程,结果表明:膨胀型石墨/水滑石可以提高PBSA的结晶温度,并可以将其非等温结晶温度提高15～22℃。通过Jeziornyz用于非等温结晶峰修正的Avrami方程拟合得到PBSA和PBSA/膨胀型石墨/水滑石复合材料的n值分别为4.3～4.9和4.2～6.3,但是Ozawa方法在实验中并不能得到理想的处理结果。通过莫志深法进一步处理此非等温结晶过程,可以计算得到Ozawa指数m为3.0和2.7,表明膨胀型石墨/水滑石在PBSA体系中起到了异相成核的作用。
The non-isothermal crystallization process of PBSA and PBSA / intumescent graphite / hydrotalcite composites was investigated by differential scanning calorimetry (DSC). The results showed that the intumescent graphite / hydrotalcite could increase the crystallization temperature of PBSA and could change its non- Isothermal crystallization temperature increased 15 ~ 22 ℃. The Avrami equation fitted by Jeziornyz for non-isothermal crystallization peak fitting has n values of 4.3 to 4.9 and 4.2 to 6.3 for PBSA and PBSA / intumescent graphite / hydrotalcite composites, respectively, but the Ozawa method can not be ideally obtained in experiments The results of the treatment. Further processing of this non-isothermal crystallization process by Mo Chi deep method can be calculated Ozawa index m of 3.0 and 2.7, indicating that intumescent graphite / hydrotalcite play a heterogeneous nucleation role in the PBSA system.