组件在软木粉的热稳定性和易燃性中的作用
Farnaz Ghonjizade-Samani1,2, Laia Haurie3, Ramón Malet2
1Poly2 Group, Department of Materials Science and Engineering, Escuela Superior de Ingenierías Industrial, Aeroespacial y Audiovisual (ESEIAAT), Universitat Politècnica de Catalunya (UPC BarcelonaTech), C/de Colom, 11, 08222 Terrassa, Spain.
Materials (Basel, Switzerland)
|May 27, 2023
概括
这项研究显示,suberin可以增强软木的功效.
科学领域:
- 生物质热解是生物质的热解.
- 燃烧化学是指燃烧的化学成分.
- 材料科学 是一种材料科学.
背景情况:
- 木 (Quercus suber L.) 是一种独特的自然材料.
- 了解其分解和火灾行为对于应用至关重要.
研究的目的:
- 分析提取剂,苏贝林和纤维素成分对软木烟雾溶解和火反应的影响.
- 为了确定软木粉的化学成分和热稳定性.
主要方法:
- 化学成分分析 化学成分分析
- 减弱的总反射度里埃变换红外光谱法 (ATR-FTIR)
- 热重力测量分析 (TGA)
- 微尺度燃烧热量计 (MCC) 是一种微尺度燃烧热量计.
主要成果:
- 主要成分是苏贝林 (40%),其次是红素 (24%),多糖类 (19%) 和提取剂 (14%).
- 移除提取剂略有改善了热稳定性;移除suberin降低了分解开始温度,突出了suberin在热稳定性中的作用.
- 非极地提取物具有最高的易燃性 (pHRR: 365 W/g). 苏贝林在300°C以下释放出更多易燃气体 (pHRR:180 W/g),与红素和多糖相比,燃烧率较低.
结论:
- 苏贝林显著影响软木的热稳定性,而提取剂影响着易燃性.
- 对特定组件的分析是了解软木的复杂热解和燃烧机制的关键.
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