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首页> 外文期刊>Journal of industrial and engineering chemistry >Crystallization and melting behavior of polypropylene in β-PP/polyamide 6 blends containing PP-g-MA
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Crystallization and melting behavior of polypropylene in β-PP/polyamide 6 blends containing PP-g-MA

机译：聚丙烯在含PP-g-MA的β-PP/聚酰胺6共混物中的结晶和熔融行为

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摘要

In this research, we used a twin-screw extruder to melt and blend PP-g-MA compatibilizer with β-polypropylene (PP)/polyamide 6 (PA6). The influences of the PA6 and PP-g-MA contents in PP/PA6 blends on crystallization and melting behavior of PP phase and morphology were investigated. The results showed that, when PP-g-MA copolymer was added to the p form of nucleated PP/PA6 blends, the anhydride groups in PP-g-MA and PA6 terminal amine groups react to form PP-g-PA graft copolymer in a two-phase interface. This reduces the interfacial tension, improves the interfacial adhesion, and reduces the size of PA6 domains in the blend. The generated PP-g-PA graft copolymer wrapped PA6 phase and buried the anhydride groups of PP-g-MA. When the proportion of PP-g-MA and PA6 was between 0.5 and 0.75, there was no longer interfering to the formation of P-crystals in the PP phase. The content of P-crystal of PP phase in blends was found to reach as large as 85.9%.
机译：在这项研究中，我们使用双螺杆挤出机将PP-g-MA相容剂与β-聚丙烯（PP）/聚酰胺6（PA6）熔融并共混。研究了PP / PA6共混物中PA6和PP-g-MA的含量对PP相结晶和熔融行为以及形态的影响。结果表明，将PP-g-MA共聚物添加到p型成核PP / PA6共混物中时，PP-g-MA中的酸酐基团和PA6末端胺基团反应形成PP-g-MA接枝共聚物。两阶段接口。这降低了界面张力，改善了界面粘合性，并减小了共混物中PA6结构域的大小。生成的PP-g-PA接枝共聚物包裹了PA6相并掩埋了PP-g-MA的酸酐基团。当PP-g-MA和PA6的比例在0.5至0.75之间时，不再干扰PP相中P晶体的形成。发现共混物中PP相的P晶体含量高达85.9％。

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