期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 55, 期 14, 页码 3982-3989出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.6b00127
关键词
-
A series of microporous open-cell poly(vinyl formal) (PVF) foams were obtained by cross-linking poly(vinyl alcohol) (PVA) with different contents of formaldehyde during the first acetalization process. In this reaction, water acted not only as the solvent of PVA but also as the pore-forming agent, which made this method more concise and environment-friendly. However, the PVF foam walls were not strong enough to maintain the initial pore shapes and sizes. The second acetalization process was used to increase the acetalization degree to enhance the strength of the foam walls. The poly(vinyl formal) foams obtained by the two-step acetalization method (TPVF) were able to keep the pretty microporous structures during the drying process. The materials with highly microporous structures exhibited a good ability to absorb normally incident sound. Therefore, the microporous open-cell TPVF foams have great potential in the application of sound absorption materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据