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公开(公告)号:US11359067B2
公开(公告)日:2022-06-14
申请号:US16760372
申请日:2018-10-24
摘要: A structure for protecting a substrate. The structure comprises an inner tie coat layer which can bond to the substrate, a geopolymer foam layer, and an outer protective layer. The geopolymer foam layer is the reaction product of a mixture comprising an aluminosilicate source, an alkali activator, reinforcing fibres, and a plurality of microparticles.