制备具有高氧气阻隔性能的聚丙烯酸接枝-丙烯酰基/半纤维素（PAA-g-AH）杂化膜。
Preparation of polyacrylic acid-grafted-acryloyl/hemicellulose (PAA-g-AH) hybrid films with high oxygen barrier performance.
机构信息
Liaoning Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Dalian, 116034, Liaoning, China.
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences (CAS), Qingdao, 266101, Shandong, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
出版信息
Carbohydr Polym. 2019 Feb 1;205:83-88. doi: 10.1016/j.carbpol.2018.10.031. Epub 2018 Oct 12.
Developing high-performance oxygen barrier films using biomass-based materials is crucial for the development of green and sustainable society. Herein, we develop a strategy to synthesize polyacrylic acid-grafted-acryloyl/hemicellulose composites (PAA-g-AH) as film materials with excellent oxygen barrier property. The as-synthesized films were extensively characterized by Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), gel permeation chromatography (GPC), H nuclear magnetic resonance (H NMR), mechanical test, light transmittance and oxygen transmission rate (OTR) measurement. All these testing results showed that the optimum film exhibit great oxygen barrier property with a low OTR value of 0.25 ± 0.01 cm* μm/(mdkPa), which was much lower than that of pure PAA film. Moreover, the hybrid films possess well mechanical strength, light transmittance and recycle usage properties. Experimental results indicated that the as-synthesized films have great potential applications in several fields as packaging materials, such as drug, food and electronic products.
利用生物质基材料开发高性能氧气阻隔膜对于绿色可持续社会的发展至关重要。在此，我们开发了一种策略，用于合成接枝聚丙烯酸/半纤维素复合材料（PAA-g-AH）作为具有优异氧气阻隔性能的薄膜材料。通过傅里叶变换红外（FT-IR）、扫描电子显微镜（SEM）、凝胶渗透色谱（GPC）、H 核磁共振（H NMR）、机械测试、透光率和氧气传输率（OTR）测量对合成的薄膜进行了广泛的表征。所有这些测试结果表明，最佳薄膜具有出色的氧气阻隔性能，其 OTR 值低至 0.25 ± 0.01 cmμm/（md*kPa），远低于纯 PAA 薄膜。此外，混合薄膜具有良好的机械强度、透光率和可回收使用性能。实验结果表明，所合成的薄膜在包装材料（如药品、食品和电子产品）等领域具有很大的潜在应用前景。
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