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首页> 外文期刊>Journal of Applied Polymer Science >Compatibilization of Kraft Lignin-Polyethylene Composites Using Unreactive Compatibilizers
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Compatibilization of Kraft Lignin-Polyethylene Composites Using Unreactive Compatibilizers

机译：使用非反应性增容剂使牛皮纸木质素-聚乙烯复合材料增容

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摘要

This article presents a novel approach to compatibilize Kraft lignin with polyethylene that involves the use of modified poly (styrene-co-ethylene-co-butylene-co-styrene) (SEBS) as unreactive compatibilizers. As SEBS shows no compatibilizing effect on Kraft lignin-polyethylene composites, SEBS was functionalized via nitration followed by amination to obtain nitrated (SEBS-NO_2) and aminated (SEBS-NH_2) SEBS. The compatibilizing effects of SEBS derivatives were studied by means of morphological and mechanical analyses. The results show that SEBS-NO_2 is less effective than SEBS-NH_2, the later displaying comparable compatibilizing efficiency to a commercial reactive compatibilizer based on maleated polyethylene. Overall, compatibilization was found to decrease lignin particle size. Addition of SEBS-NH_2 varying between 1% and 10% improved the tensile strength of composites by up to 96%, elongation at break by up to 64%, and impact strength by up to 48%. Finally, the crystallinity and density of the resulting composites were also studied. VC 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 41040.
机译：本文介绍了一种使牛皮纸木质素与聚乙烯相容的新方法，该方法涉及使用改性聚（苯乙烯-乙烯-乙烯-丁烯-苯乙烯）（SEBS）作为非反应性增容剂。由于SEBS对牛皮纸木质素-聚乙烯复合材料没有增容作用，因此SEBS通过硝化继之以胺化功能化，从而获得了硝化（SEBS-NO_2）和胺化（SEBS-NH_2）SEBS。通过形态学和力学分析研究了SEBS衍生物的增容作用。结果表明，SEBS-NO_2的效果不及SEBS-NH_2，后者的增容效率与基于马来酸化聚乙烯的市售反应性增容剂相当。总体而言，发现相容性降低了木质素的粒径。 SEBS-NH_2的添加量在1％至10％之间变化，可将复合材料的拉伸强度提高96％，断裂伸长率提高64％，冲击强度提高48％。最后，还研究了所得复合材料的结晶度和密度。 VC 2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2014，131，41040。

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