木薯淀粉和改性天然橡胶的强韧可生物降解聚合物。
Robust and biodegradable polymer of cassava starch and modified natural rubber.
机构信息
Department of Chemistry, Faculty of Science and Technology, Thammasat University 99 Moo 18 Paholyothin Road, Klong-Luang, Pathumthani 12120, Thailand; Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Songkhla, 90110, Thailand.
出版信息
Carbohydr Polym. 2015 Dec 10;134:267-77. doi: 10.1016/j.carbpol.2015.07.038. Epub 2015 Jul 31.
The application of starch based materials for packaging purposes has attracted significant interest because they are both cheap and renewable resources. The study investigated the preparation and properties of a novel biopolymer sheet produced from a blend of maleated epoxidized natural rubber (MENR) and natural rubber-g-cassava starch (NR-g-CSt). The water resistance, toluene resistance and elongation at break of the polymer blend were enhanced after the addition of the MENR compared to pristine NR-g-CSt. The maximum tensile strength and thermal stability of the NR-g-CSt/MENR blend were found in the 100:50 NR-g-CSt:MENR blend. The novel films demonstrated good biodegradability in soil.
淀粉基材料在包装方面的应用引起了人们的极大兴趣，因为它们既便宜又可再生。本研究探讨了马来酸酐接枝环氧化天然橡胶（MENR）和天然橡胶-木薯淀粉（NR-g-CSt）共混物制备新型生物聚合物片材的方法及其性能。与纯 NR-g-CSt 相比，添加 MENR 后，聚合物共混物的耐水性、耐甲苯性和断裂伸长率得到提高。在 NR-g-CSt/MENR 共混物中，当 NR-g-CSt:MENR 为 100:50 时，共混物的拉伸强度和热稳定性达到最大值。新型薄膜在土壤中表现出良好的生物降解性。
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