- 目录
- 保温材料与建筑节能
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气凝胶岩棉复合保温材料的制备与性能研究
作者：王肇嘉1，2，路国忠1，何光明1，马国儒1，陈清2，李雨洋2
（1.北京建筑材料检验研究院有限公司，北京 100041；2.北京建筑材料科学研究总院有限公司，北京 100041）
摘要：介绍了气凝胶岩棉复合保温材料的制备工艺，研究了气凝胶含量、岩棉板厚度和密度对复合保温材料导热系数的影响，确定了最佳生产工艺配方，并对复合保温材料的微观形貌与元素种类与含量进行了分析。结果表明，气凝胶含量为7%，岩棉板厚度为40 mm，密度为120 kg/m3时，复合材料的导热系数最低，为0.0202 W/（m·K）。气凝胶有利于降低复合保温材料的导热系数，大幅提高复合保温材料的保温性能。
关键词：气凝胶；岩棉；保温材料；导热系数
中图分类号：TU55+1 文献标识码：A 文章编号：1001-702X（2022）01-0124-03
Study on preparation and properties of aerogel rock wool composite insulation material
WANG Zhaojia1，2，LU Guozhong1，HE Guangming1，MA Guoru1，CHEN Qing2，LI Yuyang2
（1.Beijing Building Materials Inspection Research Institute Co. Ltd.，Beijing 100041，China；
2.Beijing General Research Institute of Building Materials Co. Ltd.，Beijing 100041，China）
Abstract：The preparation process of aerogel-rock wool composite thermal insulation material was introduced and the effects of solid contents，thickness and density of the board on thermal conductivity of the aerogel-rock wool composite material were studied，and the morphology and energy spectrum of the material were analyzed. The results showed that when the aerogel content is 7%，the thickness of the rock wool board is 40 mm，and the density is 120 kg/m3，the thermal conductivity of the composite is the lowest，which is 0.0202 W/（m·K）. Aerogel was beneficial to reduce the thermal conductivity of aerogel rock wool composite， and the thermal insulation performance of ordinary rock wool was greatly improved.
Key words：aerogel，rock wool，insulation material，thermal conductivity