工业杨梅单宁发泡材料研究（综述）
摘要
本文综述了国内外发泡材料的研究进展，介绍了它们的综合性能。着重强调了利用杨梅单宁代替化石资源原料，代替酚醛树脂发泡材料用于建筑外墙等应用场合的研究情况。论述了杨梅单宁的结构和应用以及杨梅单宁在发泡材料方面的应用，指出研究工业杨梅单宁发泡材料将具备十分广阔的应用前景和部分取代石油基化学品的现实意义。
关键词：杨梅单宁、发泡材料、保温性能
Study on industrial waxberry tannin foaming material
ABSTRACT
This paper reviews the research progress of foaming materials at home and abroad, and introduces their comprehensive properties. In this paper, the application of Bayberry tannin instead of fossil resource and phenolic resin foam in building exterior wall is emphasized. The structure and application of arbutus tannin and the application of arbutus tannin in foaming materials are discussed. It is pointed out that the research on industrial arbutus tannin foaming materials will have a very broad application prospect and practical significance of partially replacing petroleum based chemicals.
Keywords:Bayberry tannin, foaming material, heat preservation performance1.植物单宁的结构性质
植物单宁是天然酚类物质，大量存在于树皮和木材中，少量存在于各种植物的叶子和果实中[1]。根据化学结构可分为将其分为缩合单宁和可水解单宁。可水解的单宁是简单的酚类，例如鞣花酸和没食子酸[2]。
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