林书凝,何意范,王军.聚乙烯醇/橘皮果胶/阿魏酸复合包装膜的制备及性能研究[J].包装工程,2024,45(7):1-9.
LIN Shuning,HE Yifan,WANG Jun.Preparation and Performance of Polyvinyl Alcohol/Mandarin Peel Pectin/Ferulic Acid Composite Packaging Films[J].Packaging Engineering,2024,45(7):1-9. |
| 聚乙烯醇/橘皮果胶/阿魏酸复合包装膜的制备及性能研究 |
| Preparation and Performance of Polyvinyl Alcohol/Mandarin Peel Pectin/Ferulic Acid Composite Packaging Films |
| 投稿时间：2023-12-14 |
| DOI：10.19554/j.cnki.1001-3563.2024.07.001 |
| 中文关键词: 聚乙烯醇 橘皮 果胶 阿魏酸 紫外屏蔽性 抗氧化性 |
| 英文关键词: polyvinyl alcohol mandarin peel pectin ferulic acid UV shielding property antioxidant activity |
| 基金项目:国家重点基础研究发展计划(973计划)(2022YFA1203604) |
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| 中文摘要: |
| 目的 为开发一种具有抗氧化活性和紫外屏蔽性的聚乙烯醇复合包装薄膜，从橘皮中提取果胶，探索聚乙烯醇/橘皮果胶/阿魏酸复合膜的性能。方法 首先用柠檬酸提取橘皮中的果胶，然后以阿魏酸为交联剂，用溶液共混浇筑法制备聚乙烯醇/橘皮果胶/阿魏酸复合薄膜。通过对复合薄膜结构、形貌、热性能、耐水性能、光学性能、力学性能、抗氧化性能的表征，考察不同含量的阿魏酸对复合薄膜的影响。结果 果胶羧基与聚乙烯醇羟基形成酯键，阿魏酸与聚合物形成酯键与氢键，薄膜具有较好的热稳定性和紫外屏蔽能力，加入阿魏酸后薄膜的耐水性能显著提升，拉伸强度和抗氧化活性显著增加。其中，当阿魏酸质量分数为5%时薄膜水溶性降低了38.89%，耐水性能最佳。结论 阿魏酸的加入提高了聚乙烯醇复合薄膜的耐水性能，薄膜具有良好的紫外屏蔽能力和抗氧化活性，是一种十分具有潜力的可持续包装材料。 |
| 英文摘要: |
| The work aims to develop a functional polyvinyl alcohol (PVA) film with antioxidant activity and UV shielding properties by extracting pectin from mandarin peel and explore the properties of the PVA/mandarin peel pectin/ferulic acid composite film. The pectin was extracted from the mandarin peels with citric acid, and the PVA/mandarin peel pectin/ferulic acid composite film was prepared by solution casting method with ferulic acid as a crosslinking agent. The structure, morphology, thermal properties, water resistance, optical properties, mechanical properties, and antioxidant activity of the composite film were characterized to investigate the effect of different ferulic acid contents. Ester bonds were formed between the carboxyl groups of pectin and the hydroxyl groups of PVA, and ester bonds and hydrogen bonds were formed between ferulic acid and the polymer. The film exhibited good thermal stability and UV shielding ability. The water resistance of the film was significantly improved with the addition of ferulic acid, and the tensile strength and antioxidant activity were significantly increased. The film with 5% mass fraction of ferulic acid showed a 38.89% reduction in water solubility and the best water resistance. In conclusion, the addition of ferulic acid improves the water resistance of the PVA composite film. The film shows good UV shielding ability and antioxidant activity, making it a highly potential sustainable packaging material. |
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