聚乙烯醇
淀粉
肿胀 的
吸水率
稻草
材料科学
酒
变性淀粉
化学工程
挤压
复合材料
化学
高分子化学
食品科学
有机化学
无机化学
工程类
作者
Xinyang Wei,Haiteng Tao,Congping Tan,Jixun Xie,Yuan Fang,Li Guo,Bo Cui,Feixue Zou,Wei Gao,Pengfei Liu,Lu Lu
标识
DOI:10.1016/j.ijbiomac.2023.124211
摘要
Starch/polyvinyl alcohol (PVA) degradable straws with different PVA contents were prepared by the twin-screw extrusion method. The results showed that the starch/PVA straws with 40 % PVA (PS4) had the highest dispersion uniformity of starch and PVA to achieve the best compatibility, and the compatibility size was below the micron level. Molecular interactions between starch and 40 % polyvinyl alcohol reached the highest due to the highest strength of hydrogen bonds, hence resulting in the highest texture densities. Consequently, the largest compatibility and molecular interactions significantly improved the mechanical properties and water resistance of PS4. Compared to the starch/PVA straw with 0 % PVA (PS0), swelling volume of PS4 decreased by 45.5 % (4 °C) and 65.2 % (70 °C), respectively. After soaking, the diameter strength increased by 540.1 % (4 °C, 1 h) and 638.7 % (70 °C, 15 min), respectively. Water absorption decreased by 45.3 % (4 °C, 30 min) and 27.6 % (70 °C, 30 min).
科研通智能强力驱动
Strongly Powered by AbleSci AI