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首页> 外文期刊>Science and Engineering of Composite Materials >Crystallization, structural and mechanical properties of PA6/PC/NBR ternary blends: effect of NBR-g-GMA compatibilizer and organoclay
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Crystallization, structural and mechanical properties of PA6/PC/NBR ternary blends: effect of NBR-g-GMA compatibilizer and organoclay

机译:PA6 / PC / NBR三元共混物的结晶,结构和机械性能:NBR-g-GMA增容剂和有机粘土的作用

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Ternary blends based on polyamide 6 (PA6)/acrylonitrile-butadiene rubber (NBR)/polycarbonate (PC) were prepared by melt compounding via extrusion process. The effect of organoclay (OC), compatibilizer, and blend ratio was investigated on structural and mechanical properties of the blend. The effect of OC and compatibilizer studied on crystallization temperature, melting temperature, and crystallinity of PA6/NBR/PC ternary blends was studied by differential scanning calorimetry. Improvement in the crystal structure of compatibilized blend compared to unfilled blend was observed by polarized optical microscope. Dispersion of OC into PA6/NBR/PC ternary blends was done by X-ray diffraction, transmission electron microscopy, and scanning electron microscopy (SEM)/energy-dispersive X-ray. The results confirmed the exfoliation of OC particles into the polymer matrix. The improvement in yield stress and tensile modulus of the ternary blend was observed in the presence of OC. The impact strength showed an increase using NBR-glycidyl methacrylate-grafted (g-GMA) to prepare compatibilized PA6/NBR/PC ternary blend.
机译:通过挤出法熔融共混制备了基于聚酰胺6(PA6)/丙烯腈-丁二烯橡胶(NBR)/聚碳酸酯(PC)的三元共混物。研究了有机粘土(OC),增容剂和共混比对共混物结构和力学性能的影响。通过差示扫描量热法研究了OC和增容剂对PA6 / NBR / PC三元共混物结晶温度,熔融温度和结晶度的影响。通过偏振光学显微镜观察到与未填充的共混物相比,相容的共混物的晶体结构有所改善。通过X射线衍射,透射电子显微镜和扫描电子显微镜(SEM)/能量分散X射线将OC分散到PA6 / NBR / PC三元共混物中。结果证实了OC颗粒剥落到聚合物基质中。在OC存在下,观察到三元共混物的屈服应力和拉伸模量的改善。使用NBR-甲基丙烯酸缩水甘油酯接枝(g-GMA)制备相容的PA6 / NBR / PC三元共混物时,抗冲击强度有所提高。

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