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Updated: May 27, 2025

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Preparation of Biopolymer Aerogels Using Green Solvents
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环保和高效的阻燃固体聚氨泡增强了素和气凝
1College of Home and Art Design, Northeast Forestry University, Harbin 150040, China; Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
International journal of biological macromolecules
|February 15, 2025
概括
这项研究开发了环保的刚性聚氨泡 (RPUF),使用素和阻燃剂,增强了气凝涂层. 复合材料显示改善了消防安全和机械强度,对环境的影响较低.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续材料 可持续材料
背景情况:
- 越来越多的环保固态聚氨泡 (RPUF) 的需求,具有优越的阻燃性,绝热性和机械性能.
- 在聚合物复合材料中需要可持续的强化和阻燃添加剂.
研究的目的:
- 开发一种创新的,环保的RPUF复合材料,提高消防安全和机械性能.
- 研究素,二甲基甲基酸盐 (DMMP),乙烯基醇 (EG) 和气凝涂层对RPUF性能的协同效应.
主要方法:
- 加入红素作为机械增强剂和阻燃协同剂.
- 添加了高效的阻燃剂:二甲基甲基酸盐 (DMMP) 和乙烯糖醇 (EG).
- 用气凝涂层对表面进行后处理,以进一步提高阻燃性.
主要成果:
- 经过修改的复合材料 (Ct-RPUF/L/FR) 获得了UL-94 V-0评级,将限制氧指数 (LOI) 提高到25.3%,并将点火时间延迟6.0秒.
- 将总热释放量 (THR) 大幅降低至8.6 MJ/m2,总烟雾产量 (TSP) 大幅降低至2.11 m2,将火灾危险降到最低.
- 压力强度提高到178.3kPa,并保持了与整洁RPUF相比的可比热导率 (30.11mW/m·K).
结论:
- 素,DMMP,EG和气凝涂层的协同组合有效地提高了RPUF的消防安全性和机械性能.
- 与传统的阻燃方法相比,生命周期评估 (LCA) 表明环境影响较低.
- 该战略为开发用于实际应用的先进,耐用和环保的RPUF材料提供了一个有前途的途径.
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