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首页> 外文期刊>Journal of Applied Polymer Science >Reactive blends of polyamide 6 with polyester elastomer using coupling agents
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Reactive blends of polyamide 6 with polyester elastomer using coupling agents

机译：使用偶联剂将聚酰胺6与聚酯弹性体反应性共混

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In situ compatibilized melt blends of polyamide 6 (PA-6) with polyester elastomer (PEL) were prepared in a corotating twin-screw extruder using two types of coupling agent (CA): diglycidyl ether of bisphenol A (DGEBA) and 1,4-phenylene bis(2-oxazoline) (PBO). The notched impact strength of PA-6 and PA-6/PEL blends increased with the addition of coupling agent, especially DGEBA, and the maximum impact toughening of the blend was obtained with 0.6 mol % DGEBA, the composition of minimum domain size observed from SEM. Viscosities of the untreated blends increased over those of the base resins at low frequencies. Viscosities of both the base resins and the blends increased with the addition of CA, and the effect was much more pronounced with DGEBA, especially for PA-6 and PA-6-rich blends. The crystallization temperature (T-c) of PEL increased over 10degreesC, whereas the T-c of PA-6 decreased by 2-3degreesC in the blends. With the addition of coupling agents, the crystallization melting temperature (T-m) and T-c of PA-6 decreased by up to 5degreesC with DGEBA, implying that the crystallization of PA-6 is disturbed by the in situ formed PA-6-CA-PEL or PA-6-CA-PA-6 type copolymer. (C) 2004 Wiley Periodicals, Inc. [References: 23]
机译：使用两种偶联剂（CA）在同向旋转双螺杆挤出机中制备聚酰胺6（PA-6）与聚酯弹性体（PEL）的原位相容熔融共混物：双酚A的二缩水甘油醚（DGEBA）和1,4 -亚苯基双（2-恶唑啉）（PBO）。 PA-6和PA-6 / PEL共混物的缺口冲击强度随偶联剂特别是DGEBA的加入而增加，共混物的最大冲击韧度是由0.6 mol％DGEBA获得的，从扫描电镜在低频下，未处理的共混物的粘度高于基础树脂的粘度。基础树脂和共混物的粘度均随CA的添加而增加，而DGEBA的效果更为明显，尤其是对于PA-6和PA-6丰富的共混物而言。在共混物中，PEL的结晶温度（T-c）升高超过10摄氏度，而PA-6的T-c降低2-3摄氏度。添加偶联剂后，用DGEBA将PA-6的结晶熔化温度（Tm）和Tc降低了5℃，这表明PA-6的结晶受到原位形成的PA-6-CA-PEL的干扰。或PA-6-CA-PA-6型共聚物。 （C）2004 Wiley Periodicals，Inc. [参考：23]

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