关于火焰阻燃改性康杰克葡萄甘有机和无机复合物气凝的性能研究和模拟应用场景的研究
Linsheng Wang1, Xiang Lin1, Feng Liu1
1College of Materials Science and Engineering, Chongqing University, Chongqing, China.
International journal of biological macromolecules
|October 5, 2024
概括
开发了一种新的有机-无机复合气凝,使用生物质康杰克葡萄糖曼南 (KGM) 来增强绝缘. 这种阻燃材料为节能建筑提供了卓越的机械强度和热稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
- 建筑科学 建筑科学
背景情况:
- 传统的绝缘材料往往缺乏足够的机械强度和阻燃性.
- 开发可持续和高性能绝缘对节能建筑至关重要.
- 生物质衍生材料为复合材料开发提供了一个可再生的替代方案.
研究的目的:
- 使用生物质制备一种新的有机-无机复合气凝.
- 为了研究气凝的机械,热和阻燃性能.
- 为了评估空气凝在低能耗建筑中的外部墙壁绝缘的潜力.
主要方法:
- 冷干燥方法使用葡萄康南,水友性异酸盐,水溶性阻燃剂和水玻璃.
- 康杰克葡萄糖曼南 (KGM) 与水友性异酸盐和Na2SiO3.3的化学和交联.
- 用水溶性阻燃剂和水玻璃进行修改,以提高阻燃性和热稳定性.
- 微结构分析和机械性能测试 (压力强度和压缩模量).
- 通过测量热释放率和ANSYS模拟来评估热性能.
主要成果:
- 观察到有机-无机相互透的网络微观结构.
- 样本K2S4P2的压力强度为4.751±0.089 MPa.
- 样本K2S4P1B显示压缩模量为63.76±1.81 × 10^3 m2/s2.2. 这是一个很大的压缩模量.
- 离子的加入增强了有机成分的热稳定性.
- 样本K2S4P1A4的峰值和总热释放率分别下降了80.3%和50.8%.
- 安西斯模拟显示,外部墙壁的绝缘层厚度最好为40-60毫米.
结论:
- 制备的有机-无机复合气凝具有出色的机械性能和阻燃性.
- 该材料显示出作为低能耗建筑物的有效和可持续绝缘解决方案的巨大潜力.
- 结合生物质和无机成分的冷干燥方法为先进的气凝开发提供了一个简单和环保的方法.
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