WebApr 13, 2024 · CNF was modified by propionic anhydride (PA) to form surface-propionylated CNF (CNFp) to improve its compatibility with the PMMA matrix. CNF, CNFp, and acety … Optically Transparent and Toughened Poly(methyl methacrylate) Composite Films with Acylated Cellulose Nanofibers WebO Instituto do Patrimônio Histórico e Artístico Nacional (IPHAN) é uma autarquia federal do Governo do Brasil, criada em 1937, vinculada ao Ministério da Cultura, responsável pela preservação e divulgação do patrimônio material e imaterial do país.. Tem a função de defender e favorecer os bens culturais do país proporcionando sua existência e usufruto …
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