Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
Int J Biol Macromol. 2024 Apr;265(Pt 1):130447. doi: 10.1016/j.ijbiomac.2024.130447. Epub 2024 Mar 7.
The increased use and expansion of biomass applications offer a viable approach to diminish reliance on petroleum-derived resources and promote carbon neutrality. Cellulose, being the most abundant natural polymer on Earth, has garnered considerable attention. This study introduces a straightforward method to fabricate a cellulose-based multifunctional composite film designed for efficient light management, specifically featuring flame retardant and thermal-healing capabilities. The film incorporates a microfibrillated cellulose (MFC) matrix with functional components, namely benzoxazine resin (BR) and 2-hydroxyethyl methacrylate phosphate (HEMAP). Utilizing dynamic covalent crosslinking, the composite films exhibit satisfactory self-healing properties. The combined effects of BR and HEMAP contribute to the effective flame retardancy of the composite film. Furthermore, the resulting film shields ultraviolet and blue light, offering comfortable interior lighting by mitigating harsh light and extending light propagation. The film also demonstrates favorable water resistance and high tensile strength. The exceptional multifunctional properties, coupled with its safety and extended service life, position it as a potential optical management film for smart building materials.
生物质应用的增加和扩展提供了一种可行的方法，可以减少对石油资源的依赖，促进碳中和。纤维素作为地球上最丰富的天然聚合物，引起了相当大的关注。本研究介绍了一种简单的方法来制造一种基于纤维素的多功能复合膜，旨在实现高效的光管理，特别是具有阻燃和热修复能力。该膜以微纤化纤维素（MFC）为基质，结合了功能性成分，即苯并恶嗪树脂（BR）和 2-羟乙基甲基丙烯酸磷酸酯（HEMAP）。利用动态共价交联，复合膜表现出令人满意的自修复性能。BR 和 HEMAP 的共同作用有助于提高复合膜的有效阻燃性。此外，所得到的膜屏蔽紫外线和蓝光，通过减轻强光和延长光传播来提供舒适的室内照明。该膜还具有良好的耐水性和较高的拉伸强度。其出色的多功能特性，以及其安全性和延长的使用寿命，使其成为智能建筑材料中潜在的光学管理膜。
