By means of DSC, DMA and density measurement, the effects of diethyleneglycol (DEG) unit on the relaxation processes of the glassy polyethylene tereph-thalate (PET) below the glass transition temperature (T_g) were studied.
英
美
- 用差熱分析、動(dòng)態(tài)力學(xué)分析和密度測量等方法,研究了二甘醇(二乙二醇醚,DEG)對聚對苯二甲酸乙二酯(PET)玻璃態(tài)松弛的影響。