详细信息

PE-LLD-g-(GMA-CO-St)对PLA/PE-LLD共混体系的反应性增容研究    

Reactive Compatibilization of PLA/PE-LLD/PE-LLD-g-(GMA-co-St)Blend

文献类型:期刊文献

中文题名:PE-LLD-g-(GMA-CO-St)对PLA/PE-LLD共混体系的反应性增容研究

英文题名:Reactive Compatibilization of PLA/PE-LLD/PE-LLD-g-(GMA-co-St)Blend

作者:王晓婷[1];唐颂超[1];潘泳康[1];王庆海[1]

机构:[1]华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海200237

年份:2008

卷号:22

期号:5

起止页码:15

中文期刊名:中国塑料

外文期刊名:China Plastics

收录:CSTPCD;;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;

语种:中文

中文关键词:聚乳酸;线形低密度聚乙烯;甲基丙烯酸缩水甘油酯;增容;共混体系

外文关键词:polylactide; linear low density polyethylene; glycidyl methacrylate; oompatibilization; blend

摘要:在聚乳酸(PLA)中加入线形低密度聚乙烯(PE-LLD)进行增韧,并通过相容剂 PE-LLD-g-(GMA-co-St)增容PLA 和 PE-LLD。采用红外光谱、动态流变测试和扫描电子显微镜对共混物进行了表征,测试了共混物的冲击强度。结果表明,加入 PE-LLD-g-(GMA-co-St)能明显提高 PLA/PE-LLD 的冲击韧性,最高比 PLA/PE-LLD 简单共混物提高了144%,熔体的损耗模量G″明显增大,PE-LLD 分散相在 PLA 基体中有更加细微的分散,界面更加模糊,PE-LLD-g-(GMA-co-St)在共混体系中起到了反应性增容作用。
Glycldyl methacrylate (GMA) and styrene (St) melting grafted PE-LLD [PE-LLD-g- (GMA- co-St) ] was used as a reactive compatibilizer in PLA/PE-LLD blends, which were characterized by FTIR, dynamic rheological test, SEM, and mechanical properties. With the addition of PE-LLD-g- (GMA-co-St), the Charpy impact strength of the blends increased by 144 % based on plain PLA/PE- LLD blends. In addition, the loss modulus of the blends increased, the particle size of PE-LLD in PLA decreased, both indicating a good compatibilization.

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