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首页> 外文期刊>Journal of Applied Polymer Science >The effects of alkaline earth dehydroabietate on the crystallization process of polypropylene
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The effects of alkaline earth dehydroabietate on the crystallization process of polypropylene

机译：碱土金属脱氢松香酸酯对聚丙烯结晶过程的影响

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摘要

In this article, the influence of alkaline earth dehydroabietates, which were prepared from Na-dehydroabietate, on crystallization of polypropylene (PP) from the melt state was studied by differential scanning calorimetry and polarization microscopy. It was found that magnesium dehydroabietate could improve mechanical properties and crystallization temperatures of PP and also decrease the size of spherulites. Kinetic analysis of PP isothermal crystallization showed that magnesium dehydroabietate decreased the fold surface energy of the developing crystals of PP and promoted the nucleation and crystallization of PP. However, calcium dehydroabietate increased the fold surface energy of the developing crystals of PP, but had no nucleation effect oil PP. (C) 2002 Wiley Periodicals, Inc. [References: 16]
机译：本文通过差示扫描量热法和偏振显微镜研究了由脱氢松香酸钠制得的碱土金属脱氢松香酸酯对聚丙烯（PP）熔融态结晶的影响。发现脱氢松香酸镁可以改善PP的机械性能和结晶温度，并且还可以减小球晶的尺寸。 PP等温结晶的动力学分析表明，脱氢松香酸镁降低了PP发育晶体的折叠表面能，并促进了PP的成核和结晶。然而，脱氢松香酸钙增加了PP的正在形成的晶体的折叠表面能，但对PP没有成核作用。 （C）2002 Wiley Periodicals，Inc. [参考：16]

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