用国外引进的大型真空转鼓设备研究ＰＥＴ固相缩聚升温过程中的粘连问题及样品的热性能，指出在实际生产中必须控制好升温速度，以防止发生严重的粘连现象．粘连主要发生在１００～１３０℃和１９０℃左右两个温度区域．对于同一时间的样品，尽管外观上有透明、半透明和不透明之分，但测得的Ｔｍ（１）却基本无差别． The large-scale vacuum drum equipment imported from abroad was used to study the adhesion problems and the thermal properties of PET during the process of PET solid-state polycondensation. It was pointed out that in the actual production, the heating rate must be controlled so as to prevent the occurrence of serious adhesion. Adhesion occurs mainly in the two temperature ranges of 100 ~ 130 ℃ and 190 ℃. Samples of the same time, although the appearance of a transparent, translucent and opaque points, but measured Tm (1) is basically no difference.