李潇潇,徐晓晴,闫昫,刘旭彤,马晓军.PEG200增塑改性ACNs/MMT/PHBH纳米复合包装膜[J].包装工程,2021,42(7):91-98.
LI Xiao-xiao,XU Xiao-qing,YAN Xu,LIU Xu-tong,MA Xiao-jun.PEG200 Plasticized and Modified ACNs/MMT/PHBH Nanocomposite Packaging Films[J].Packaging Engineering,2021,42(7):91-98. |
| PEG200增塑改性ACNs/MMT/PHBH纳米复合包装膜 |
| PEG200 Plasticized and Modified ACNs/MMT/PHBH Nanocomposite Packaging Films |
| 投稿时间：2020-06-30 |
| DOI：10.19554/j.cnki.1001-3563.2021.07.012 |
| 中文关键词: PEG200 PHBH ACNs 蒙脱土 纳米复合包装膜 |
| 英文关键词: PEG200 PHBH ACNs MMT nanocomposite packaging film |
| 基金项目:天津市教委科研计划(2019ZD039) |
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| 中文摘要: |
| 目的 制备聚乙二醇(PEG200)-乙酰化纤维素纳米晶体/蒙脱土/聚3-羟基丁酸酯-co-3-羟基己酸酯(PHBH)纳米复合包装膜，探究PEG200对三元纳米复合材料(ACNs/MMT/PHBH)性能的影响，以获得柔韧性、分散性等性能优良的纳米复合包装膜，增加复合包装膜在包装上的可应用性。方法 通过溶液共混法制备不同比例的PEG200-ACNs/MMT/PHBH纳米复合包装膜，应用扫描电镜、傅里叶红外光谱、偏光显微镜、热重分析、差式扫描量热仪、拉伸测试仪和透氧透湿测试仪，对复合膜的断面形貌、热稳定性、晶体形貌、力学性能和阻隔性能进行分析表征。结果 扫描电镜显示，加入适量的PEG200后，纳米颗粒上具有包覆作用，使得填料与PHBH基质间的相容性得到进一步改善。力学测试结果表明，PEG200的加入使复合包装膜的韧性有一定程度的提高，当PEG200的质量分数为6%时，与未添加PEG200的包装膜相比，其断裂伸长率增加了29.9%。阻隔性能测试结果显示，当PEG200的质量分数为4%时，复合膜的阻隔性能最佳，水蒸气透过率和氧气透过率分别为26.48 g/(m2.d)和28.46 cm3/(m2.d)。结论 实验结果表明，加入少量的PEG200能够改善纳米粒子与PHBH之间的相容性，提高ACNs/MMT/PHBH纳米复合材料的韧性和阻氧阻湿性能。 |
| 英文摘要: |
| The work aims to prepare polyethylene glycol (PEG200)-acetylated cellulose nanocrystals/ montmorillonite/poly-3-hydroxybutylate-co-3-hydroxycaproate (PHBH) nanocomposite packaging films, and to investigate the effects of PEG200 on the properties of ternary nanocomposite materials (ACNs/MMT/PHBH), in order to increase the dispersion of nanoparticles, improve the flexibility of ternary nanocomposite packaging film, and obtain nanocomposite packaging films with excellent properties, such as flexibility and dispersibility. Different proportions of PEG200-ACNs/MMT/PHBH nanocomposite packaging films were prepared via solution blending method. The section morphology, thermal stability, crystal morphology, mechanical properties, and blocking performance of nanocomposite films were studied through SEM, FTIR, polarizing microscope (POM), TGA, DSC, tensile tester, and Oxygen Permeability and Water Vapor Permeability Detection. The results of SEM show that PEG200 coating on the nanoparticles further improved the compatibility between the packing and PHBH matrix. The results of the mechanical test show that, after PEG200 is added, the toughness of composite packaging film increases to a certain extent. Compared with the packaging film without PEG200 added, the elongation at break of nanocomposite packaging films with 6% PEG200 increases by 29.9%. The barrier performance of the composite film with 4% PEG200 was the best, and the permeability of water vapor and oxygen were 26.48 g/(m2.d) and 28.46 cm3/(m2.d) respectively. The experimental results show that adding a small amount of PEG200 can improve the compatibility between the nanoparticles and PHBH, and improve the toughness and oxygen and moisture resistance of ACNs/MMT/PHBH nanocomposites. |
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