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The study of using glycidyl methacrylate grafted natural rubber as an impact modifier of polylactic acid

机译：用甲基丙烯酸缩水甘油酯接枝天然橡胶作为聚乳酸抗冲改性剂的研究

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Natural rubber (NR) was melt blended with polylactic acid (PLA) at various ratios using an internal mixer. The impact strength and elongation at break of PLA/NR blend increased with increasing NR content up to 10% (w/w). Glycidyl methacrylate grafted natural rubber (NR-g-GMA) was melt blended with PLA/NR blends. The effect of content and %grafting of NR-g-GMA on mechanical properties of PLA were studied. The addition of NR-g-GMA in PLA/NR blend improved impact strength and elongation at break of PLA/NR blend compared to that of neat PLA and PLA/NR blend without NR-g-GMA. However, it was found that impact strength and elongation at break of PLA/NR blend increased with increasing NR-g-GMA content up to 1% (w/w) and after that it decreased. Moreover, impact strength and elongation at break of PLA/NR blend increased with increasing %grafting up to 4.35%.
机译：使用内部混合器以各种比率与聚乳酸（PLA）熔融混合天然橡胶（NR）。 PLA / NR混合物中断的冲击强度和伸长率随，NR含量增加高达10％（w / w）。甲基丙烯酸缩水甘油酯接枝天然橡胶（NR-G-GMA）熔融混合，与PLA / NR共混物混合。研究了NR-G-GMA对PLA力学性能的含量和％接枝的影响。与没有NR-G-GMA的整洁PLA和PLA / NR混合物相比，PLA / NR中的NR-G-GMA在PLA / NR中的添加改善的冲击强度和伸长率。然而，发现PLA / NR混合物断开的冲击强度和伸长率随，增加NR-G-GMA含量高达1％（w / w），并且在其降低之后。此外，PLA / NR混合物断裂的冲击强度和伸长率随着嫁接的增加而增加至4.35％。

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