A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of environment-friendly aerogel particles for aerogel mortar
The invention discloses a preparation method of environment-friendly aerogel particles for aerogel mortar. The preparation method comprises the following steps: putting wet gel particles and a drying medium into a drying kettle; the wet gel is composed of a gel skeleton and an in-hole solvent, the in-hole solvent is single or mixed alcohol, and the hole size is in a micro-nano scale; the drying medium is single or mixed alcohol; the purpose of removing residual impurities in aerogel particles is achieved by replacing residual alcohols and by-product gases in aerogel holes with inactive gas of which the free path is greater than the nano aperture of the aerogel. The prepared silicon dioxide aerogel particles have remarkable advantages in the aspect of environmental protection, and have the characteristics of low heat conductivity coefficient, light weight, heat insulation, hydrophobicity and the like, so that the silicon dioxide aerogel particles have wide application prospects and environmental protection benefits in environment-friendly mortar in the building field.
本发明公开了一种可用于气凝胶砂浆的环保气凝胶颗粒的制备方法，包括将湿凝胶颗粒及干燥介质置于干燥釜中；所述湿凝胶组成为凝胶骨架及孔内溶剂，孔内溶剂为单一或混合醇，且孔尺寸为微纳米级；所述干燥介质为单一或混合醇；通过自由程大于气凝胶纳米孔径的不活泼气体置换替代气凝胶孔内残留的醇类及其副产物气体的方式，达到祛除气凝胶颗粒内残留杂质的目的。制备的二氧化硅气凝胶颗粒在环保性方面具有显著的优势，且其低导热系数、轻量化、隔热保温、疏水性等特点，使其在建筑领域环保砂浆中具有广泛的应用前景和环保效益。
Preparation method of environment-friendly aerogel particles for aerogel mortar
The invention discloses a preparation method of environment-friendly aerogel particles for aerogel mortar. The preparation method comprises the following steps: putting wet gel particles and a drying medium into a drying kettle; the wet gel is composed of a gel skeleton and an in-hole solvent, the in-hole solvent is single or mixed alcohol, and the hole size is in a micro-nano scale; the drying medium is single or mixed alcohol; the purpose of removing residual impurities in aerogel particles is achieved by replacing residual alcohols and by-product gases in aerogel holes with inactive gas of which the free path is greater than the nano aperture of the aerogel. The prepared silicon dioxide aerogel particles have remarkable advantages in the aspect of environmental protection, and have the characteristics of low heat conductivity coefficient, light weight, heat insulation, hydrophobicity and the like, so that the silicon dioxide aerogel particles have wide application prospects and environmental protection benefits in environment-friendly mortar in the building field.
本发明公开了一种可用于气凝胶砂浆的环保气凝胶颗粒的制备方法，包括将湿凝胶颗粒及干燥介质置于干燥釜中；所述湿凝胶组成为凝胶骨架及孔内溶剂，孔内溶剂为单一或混合醇，且孔尺寸为微纳米级；所述干燥介质为单一或混合醇；通过自由程大于气凝胶纳米孔径的不活泼气体置换替代气凝胶孔内残留的醇类及其副产物气体的方式，达到祛除气凝胶颗粒内残留杂质的目的。制备的二氧化硅气凝胶颗粒在环保性方面具有显著的优势，且其低导热系数、轻量化、隔热保温、疏水性等特点，使其在建筑领域环保砂浆中具有广泛的应用前景和环保效益。
Preparation method of environment-friendly aerogel particles for aerogel mortar
一种可用于气凝胶砂浆的环保气凝胶颗粒的制备方法
DU QUANLING (author) / XIN ZHUOHAN (author) / WANG JIANHENG (author) / ZHANG MENG (author)
2024-10-15
Patent
Electronic Resource
Chinese
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