【摘要】 研究了新型复合成核剂水滑石（HT）／离聚物（Surlyn8920）／聚乙二醇（PEG）对不同特性粘数聚对苯二甲酸乙二醇酯（PET）非等温结晶性能的影响。通过差示扫描量热仪测试了PET的结晶峰温度T_mc和熔融峰温度（T_m）。结果表明,复合成核剂各组分及PET的质量比为0.5:3.0:3.0:100.0时,各种PET的过冷度(T_m-T_mc)均显著减少．半结晶时间(1gt_1／2)也明显降低。而且,复合成核剂对不同特性粘数PET结晶性能的改善是一致的。更多还原

【Abstract】 The effect of the nucleating agent Hydrotalcite（HT）/ionomer（Surlyn8920）/ poly（ethylene glycol）（PEG）on the non-isothermal crystallization behaviors of Poly（ethylene terephthalate）（PET）with different inherent viscosities was investigated.The measurements of crystallization temperature(T_mc) of cooling crystallization peak of PET in a non-isother- mal cooling process and melt temperature（T_m）of melt peak of PET were measured through differential scanning calorimetry（DSC）analysis.The results show that the degree of super- cooling(T_m-T_mc) and the halftime(lgt_1/2)in crystallization decreases when mass ratio of the nucleating agent（HT/Surlyn/PEG）and PET is 0.5:3.0:3.0:100.0.The effects on non-isothermal crystallization modification of PET with different inherent viscosities are con- formably.更多还原