关于胺-尿素-甲/纳米-的研究2O3 复合泡保温密封材料用于煤矿
Guolan Dou1,2, Lingling Gao1,2, Xiaoxing Zhong1,2
1Key Laboratory of Gas and Fire Control for Coal Mines (China University of Mining and Technology), Ministry of Education, Xuzhou 221116, China.
ACS omega
|December 2, 2024
概括
胺-尿素-甲/纳米-氧化物 (MUF/纳米-Al2O3) 复合泡具有增强的性能. 添加纳米-Al2O3提高了机械强度和热稳定性,使它们适用于煤矿绝缘.
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:
- 氨酸-尿素-甲 (MUF) 树脂被广泛使用,但对于特定的应用,可以改进.
- 纳米材料为增强聚合物矩阵提供独特的特性.
- 开发先进的绝缘材料对于工业安全至关重要.
研究的目的:
- 为了合成和表征胺-尿素-甲/纳米-氧化物 (MUF/纳米-Al2O3) 复合凝泡.
- 研究纳米-Al2O3对MUF泡的结构,机械和热性能的影响.
- 评估这些复合材料作为煤矿中隔热密封材料的潜力.
主要方法:
- 复合凝泡是通过使用CaCO3和酸进行二氧化碳泡生产的.
- 使用Box-Behnken设计的响应表面方法来优化MUF/纳米-Al2O3配方.
- 分析细胞结构,表面密度,压力强度,粉碎率,热稳定性和导热性.
主要成果:
- 引入纳米-Al2O3精炼细胞结构,降低表面密度和粉碎比率,增加压力强度.
- MUF/纳米-Al2O3-1.5复合材料的压力强度增加了21%,表面密度降低了10%,粉碎率降低了13%.
- 提高了高达300°C的热稳定性,导热率为0.068W/m·K,限制氧指数>30%.
结论:
- 与纯粹的MUF相比,MUF/纳米-Al2O3复合凝泡具有优越的细胞结构和机械性能.
- 增强的性能使得这些复合材料在严苛的环境中如煤矿等热绝缘和密封应用中具有前景.
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