Kong Zimeng, Chen Yajun, Ye Tian, Hao Jinling, Shi Haoran, Hao Fenghao, Zheng Ran, Qian Lijun
School of Light Industry Science and Engineering, Beijing Technology and Business University, Beijing 100048, China; China Advanced Flame Retardant Engineering Technology Research Center for Light Industry, Beijing 100048, China; Engineering laboratory for halogen-free flame retardants for polymer materials in the petroleum and chemical industry, Beijing 100048, China.
School of Light Industry Science and Engineering, Beijing Technology and Business University, Beijing 100048, China; China Advanced Flame Retardant Engineering Technology Research Center for Light Industry, Beijing 100048, China; Engineering laboratory for halogen-free flame retardants for polymer materials in the petroleum and chemical industry, Beijing 100048, China.
Int J Biol Macromol. 2025 Mar;294:139331. doi: 10.1016/j.ijbiomac.2024.139331. Epub 2025 Jan 3.
In this study, cellulose nanofibers (CNFs) were utilized as a synergistic agent, and combined with phytic acid arginine salt (PaArg) via blending and bonding. The effects of these different binding techniques of CNFs and PaArg on the flame retardant and mechanical properties of poly (butylene succinate) (PBS) were explored. The results indicated that both blended and bonded CNFs and PaArg enabled PBS composites to achieve a UL 94 V-0 rating, with the limiting oxygen index (LOI) value of the composite exceeding 28 %. When 20.5 % PaArg and 4.5 % CNFs were blended into PBS, the peak heat release rate (PHRR) of the composite decreased by 44.7 % compared to pure PBS. When the same content of hydrogen-bonded PaArg and CNFs(20.5PaArg-4.5CNFs) were added into PBS, the PHRR of the composite (PBS/20.5PaArg-4.5CNFs) reduced by 45.7 %. And it also exhibited a smaller fire growth index (FGI), enhancing the fire safety of the PBS composite. The incorporation of CNFs also improved the bending strength and impact strength of PBS. Specifically, the hydrogen bond between PaArg and CNFs demonstrated superior binding effects. Compared to the PBS/25PaArg composite, the bending strength and impact strength of the PBS/20.5PaArg-4.5CNFs composite were increased by 41.9 % and 82.1 %, respectively.
在本研究中，纤维素纳米纤维（CNFs）被用作增效剂，并通过共混和键合与植酸精氨酸盐（PaArg）相结合。探讨了CNFs和PaArg的这些不同结合技术对聚丁二酸丁二醇酯（PBS）的阻燃性能和力学性能的影响。结果表明，共混和键合的CNFs与PaArg均使PBS复合材料达到UL 94 V-0等级，复合材料的极限氧指数（LOI）值超过28%。当将20.5%的PaArg和4.5%的CNFs共混到PBS中时，复合材料的峰值热释放速率（PHRR）比纯PBS降低了44.7%。当将相同含量的氢键结合的PaArg和CNFs（20.5PaArg-4.5CNFs）添加到PBS中时，复合材料（PBS/20.5PaArg-4.5CNFs）的PHRR降低了45.7%。并且它还表现出较小的火灾增长指数（FGI），提高了PBS复合材料的火灾安全性。CNFs的加入还提高了PBS的弯曲强度和冲击强度。具体而言，PaArg与CNFs之间的氢键表现出优异的结合效果。与PBS/25PaArg复合材料相比，PBS/20.5PaArg-4.5CNFs复合材料的弯曲强度和冲击强度分别提高了41.9%和82.1%。
