用DSC研究了熔融温度对不同类型成核剂成核 PP的异相成核作用的稳定性的影响.观察到随熔融温度提高,纯PP的成核作用稳定,降温结 晶温度基本不变.而有机磷酸盐类成核剂成核PP的结晶温度比纯PP的高,而且异相成核作用 受熔融温度的影响也很小.但山梨醇类成核剂成核PP的异相成核作用随熔融温度提高,结晶温度逐步降低明显,表明其异相成核作用对热不稳定.
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