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首页> 外文期刊>Journal of Applied Polymer Science >Toughening PA1010 with a functionalized saturated polyolefin elastomer
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Toughening PA1010 with a functionalized saturated polyolefin elastomer

机译：用官能化的饱和聚烯烃弹性体增韧PA1010

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摘要

Polyamide (PA)1010 is blended with a saturated polyolefin elastomer, ethylene-cu-olefin copolymer (EOCP). To improve the compatibility of PA1010 with EOCP, different grafting rates of EOCP with maleic anhydride (MA) are used. The reaction between PA1010 and EOCP-g-MA during extrusion is verified through an extraction test. Mechanical properties, such as notched Izod impact strength, elongation at break, etc., are examined as a function of grafting rate and weight fraction of elastomer. It was found that in the scale of grafting rate (0.13-0.92 wt %), 0.51 wt % is an extreme point for several mechanical properties. Elastomer domains of PA1010/ EOCP-g-MA blends show a finer and more uniform dispersion in the matrix than that of PA1010/EOCP blends. For the same grafting rate, the average sizes of elastomer particles are almost independent on the contents of elastomer, but for different grafting rates, the particle sizes are decreased with increasing grafting rate. The copolymer formed during extrusion strengthens the interfacial adhesion and acts as an emulsifier to prevent the aggregation of elastomer in the process of blending. (C) 2000 John Wiley & Sons, Inc. [References: 21]
机译：将聚酰胺（PA）1010与饱和的聚烯烃弹性体乙烯-铜-烯烃共聚物（EOCP）混合。为了提高PA1010与EOCP的相容性，使用了不同的EOCP与马来酸酐（MA）的接枝率。通过萃取测试验证了挤出过程中PA1010与EOCP-g-MA之间的反应。根据接枝速率和弹性体的重量分数来检查机械性能，例如缺口悬臂梁式冲击强度，断裂伸长率等。发现在接枝率（0.13-0.92wt％）的范围内，0.51wt％是几种机械性能的极限。与PA1010 / EOCP共混物相比，PA1010 / EOCP-g-MA共混物的弹性体域在基质中的分散性更高且更均匀。对于相同的接枝速率，弹性体颗粒的平均尺寸几乎与弹性体的含量无关，但是对于不同的接枝速率，随着接枝速率的增加，粒径减小。挤出过程中形成的共聚物增强了界面粘合力，并充当乳化剂，以防止弹性体在共混过程中聚集。 （C）2000 John Wiley＆Sons，Inc. [参考：21]

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