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首页> 外文期刊>Journal of Applied Polymer Science >Isothermal crystallization kinetics and mechanical properties of polycaprolactone composites with zinc oxide, oleic acid, and glycerol monooleate
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Isothermal crystallization kinetics and mechanical properties of polycaprolactone composites with zinc oxide, oleic acid, and glycerol monooleate

机译：氧化锌，油酸和甘油单油酸酯的聚己内酯复合材料的等温结晶动力学和力学性能

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摘要

The isothermal crystallization and mechanical behavior of polycaprolactone (PCL) with zinc oxide (ZnO) with oleic acid and glycerol monooleate (GMO) were studied. Theoretical melting points calculated by the Flory-Huggins and Thompson-Gibbs models were thoroughly compared with differential scanning calorimetry experimental observations. The isothermal crystallization kinetic parameters by Avrami analysis showed that crystallization was controlled by nucleation, crystal growth was spherical, and the nucleation type changed between thermal and athermal nucleation. X-ray diffraction showed that when the additives were used together both the crystal thickness and the degree of crystallinity increased. A multiple-response regression analysis was made with the ZnO, oleic acid, and GMO concentrations as variables and the crystallinity as output. Interaction parameters by the Pukanzky model were calculated from the tensile strength at the yield point and indicated that the addition of oleic acid or GMO improved the interface between the ZnO particles and PCL.
机译：研究了聚己内酯（PCL）与氧化锌（ZnO）与油酸和甘油单油酸酯（GMO）的等温结晶和力学行为。将Flory-Huggins和Thompson-Gibbs模型计算的理论熔点与差示扫描量热法实验观察结果进行了彻底比较。通过Avrami分析的等温结晶动力学参数表明，结晶是由成核作用控制的，晶体生长是球形的，成核类型在热成核和非热成核之间变化。 X射线衍射表明，当一起使用添加剂时，晶体厚度和结晶度均增加。使用ZnO，油酸和GMO浓度作为变量，并以结晶度作为输出，进行了多响应回归分析。由Pukanzky模型计算的相互作用参数由屈服点的拉伸强度计算得出，表明添加油酸或GMO可以改善ZnO颗粒与PCL之间的界面。

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