期刊
JOURNAL OF POROUS MATERIALS
卷 15, 期 1, 页码 29-34出版社
SPRINGER
DOI: 10.1007/s10934-006-9048-4
关键词
carbon aerogel; surfactant; strength; pore size
In this paper, we investigated the requirements of organic gels for a successful ambient pressure drying by analyzing the role of the strength, the pore size and the surfactant of organic gels in decreasing the drying shrinkage of organic aerogels. Experimental results showed the effect of the decrease of the surface tension, resulting from the surfactant, on the drying shrinkage was very small and negligible. The drying shrinkage depended strongly on the strength and the pore size. Subsequently, the respective role of the strength and the pore size was evaluated. It can be found that the strength plays a greater role than the pore size.
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