关于结解周期性能和气气凝修改ACEPS板的区域使用寿命预测的研究
Lu Lu1,2, Rongyu Chen3, Mingming Wang4
1Jiangsu Provincial Engineering Laboratory for Advanced Materials of Salt Chemical Industry, Huaiyin Institute of Technology, Huai'an 223003, China.
Materials (Basel, Switzerland)
|June 13, 2025
概括
疏水性气凝通过减少水的吸收和提高解耐力来增强基于水泥的扩展聚烯 (EPS) 绝缘板 (ACEPS板). 这使得建筑绝缘在寒冷气候下具有更好的耐用性和更长的使用寿命.
科学领域:
- 建筑材料科学 建筑材料科学
- 材料化学 材料化学
- 热力工程是热力工程中的一个.
背景情况:
- 扩展聚烯 (EPS) 绝缘板被广泛使用,但在结解周期 (FTC) 下容易降解.
- 加入疏水性添加剂可能会提高基于EPS的材料的耐用性和性能.
- 气凝以其独特的特性而闻名,为先进的绝缘材料提供了潜力.
研究的目的:
- 为了研究防水气凝对基于气凝水泥的扩展聚烯 (EPS) 绝缘板 (ACEPS板) 受到FTC的性能的影响.
- 分析不同气凝含量对关键材料性能的影响.
- 预测ACEPS板在不同气候区的使用寿命.
主要方法:
- 系统的冷解周期 (FTC) 测试是在ACEPS板上进行的,其气凝含量各不相同.
- 测量包括压力强度,体积吸水率,导热率和孔隙结构分析.
- 对四个不同的气候区进行了使用寿命预测.
主要成果:
- 由于其疏水性,气凝显著降低了ACEPS板的体积吸水率.
- 压力强度减弱从40%降至24%,热导率增加从0.0130抑制到0.0055W/mK.
- 气凝修改显著改善了抗解性和减轻了孔隙结构退化,特别是在高气凝含量样本中.
结论:
- 气气凝的结合增强了EPS绝缘板的结构和功能耐用性,防止结解周期.
- 在寒冷的气候 (哈尔,乌鲁木齐) 和高FTC频率的地区 (北京) 中,ACEPS板显示出更好的性能.
- 这项研究为优化用于寒冷地区的基于气凝的绝缘材料提供了基础.
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