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首页> 外文期刊>Journal of Applied Polymer Science >Crystallization, Melting Behavior, and Crystal Structure of Reactive, Intumescent, Flame-Retardant Polypropylene
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Crystallization, Melting Behavior, and Crystal Structure of Reactive, Intumescent, Flame-Retardant Polypropylene

机译：反应性，膨胀型，阻燃聚丙烯的结晶，熔融行为和晶体结构

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摘要

Polypropylene (PP)/2-({9-[(4,6-diamino-1,3,5-triazin-2-yl) amino]-3,9-dioxido-2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5] undecan-3-yl} oxy) ethyl methacrylate (EADP) composites were prepared by the blending of PP with EADP as a new flame-retardant material. The nonisothermal crystallization and melting behaviors of composites were investigated with differential scanning calorimetry (DSC). Their crystal morphologies and structures were studied by polarized optical microscopy (POM) and X-ray diffraction (XRD), respectively. The DSC results show that the addition of EADP increased the crystallization onset temperature, crystallization peak temperature, and degree of crystallinity of PP in the PP/EADP composites. The melting onset temperature and melting end temperature of the PP/EADP composites decreased slightly, whereas the melting peak temperature of the PP/EADP composites increased. The POM results show that the addition of EADP greatly reduced the crystal size of PP in the composites. When the content of EADP in the PP/EADP composites was increased, the crystal size of PP became smaller. The XRD results indicate that the addition of EADP changed the crystal structure of PP in the PP/EADP composites, which exhibited both -form and -form crystal structures. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41374.
机译：聚丙烯（PP）/ 2-（{9-[（（4,6-diamino-1,3,5-triazin-2-yl）amino] -3,9-dioxido-2,4,8,10-tetraoxa-通过将PP与EADP混合作为一种新型的阻燃材料，制备了3,9-二磷酸aspiro [5.5]十一烷-3-基氧基氧基）甲基丙烯酸乙酯（EADP）复合材料。用差示扫描量热法（DSC）研究了复合材料的非等温结晶和熔融行为。分别通过偏光显微镜（POM）和X射线衍射（XRD）研究了它们的晶体形态和结构。 DSC结果表明，EADP的添加增加了PP / EADP复合材料中PP的结晶起始温度，结晶峰值温度和PP的结晶度。 PP / EADP复合材料的熔融起始温度和熔融结束温度略有下降，而PP / EADP复合材料的熔融峰值温度升高。 POM结果表明，EADP的加入大大降低了复合材料中PP的晶体尺寸。当增加PP / EADP复合材料中EADP的含量时，PP的晶体尺寸变小。 XRD结果表明，EADP的添加改变了PP / EADP复合材料中PP的晶体结构，同时显示了-型和-型晶体结构。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41374。

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