Development of hierarchical, tunable pore size polymer foams for ICF targets
FUSION SCIENCE AND TECHNOLOGY(2016)
摘要
One of the great challenges of inertial confinement fusion experiments is poor understanding of the effects of reactant heterogeneity on fusion reactions. The Marble campaign, conceived at Los Alamos National Laboratory, aims to gather new insights into this issue by utilizing target capsules containing polymer foams of variable pore sizes, tunable over an order of magnitude. Here, we describe recent and ongoing progress in the development of CH and CH/CD polymer foams in support of Marble. Hierarchical and tunable pore sizes have been achieved by utilizing a sacrificial porogen template within an open-celled poly(divinylbenzene) or poly(divinylbenzene-co-styrene) aerogel matrix, resulting in low-density foams (similar to 30 mg/ml) with continuous multimodal pore networks.
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关键词
Low-density polymer foam,divinylbenzene,foam porosity
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