轻量级,超高强度和阻燃性纤维素气凝与活性P/N丰富的原衍生物交叉连接
Jiang Tu1, Tao Mao1, Suhui Xie1
1State Key Laboratory of Resource Insects, Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China.
International journal of biological macromolecules
|October 16, 2024
概括
这项研究使用了一种新型衍生品开发出强烈的,阻燃的纤维素气凝. 这些环保材料提供出色的绝热,克服了传统纤维素气凝在各种应用中的局限性.
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
- 纳米技术 纳米技术
背景情况:
- 纤维素气凝是有希望的环保热绝缘体.
- 它们的应用受到低强度和易燃性所限制.
研究的目的:
- 合成一种新的P/N丰富的原衍生物 (NT).
- 用于制备轻质,超高强度和阻燃复合气凝.
- 为了解决传统纤维素气凝的局限性.
主要方法:
- 合成和表征一个活性P/N丰富的原衍生物 (NT).
- 通过缓慢冷,冷干燥和化学交联来制备复合气凝.
- 对隔热,机械强度和阻燃性进行评估.
主要成果:
- 含有30%NT的复合气凝显示出较低的导热率 (33.9mW/(m·K)).
- 在低密度 (21.6 mg/cm3) 的情况下,达到超高压缩模量 (0.786 MPa).
- 已证明具有优越的阻燃性 (LOI 33.1%,UL-94 V-0评级).
结论:
- 开发了天然多糖的高价值利用方法.
- 为纤维素气凝的低强度和易燃性提供了一个创新的解决方案.
- 突出了建筑,航空航天和防护服的潜在应用.
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