制备了马铃薯多孔淀粉,对其进行了SEM表征,考察了pH、α-淀粉酶用量对多孔淀粉吸油率/得率的影响,发现该多孔淀粉具有特殊的中空结构,孔道直径约为7～8 μm,孔容积占颗粒体积的50%左右,具有良好的吸附性能.以多孔淀粉为填料、苯丙乳液为成膜物制备了多孔淀粉复合调湿涂料.测定r其涂料基本性能、吸水能力及调湿能力.结果表明:该多孔淀粉复合调湿涂料符合内墙涂料的基本要求,且涂层内部富含孔道和空隙,其吸水率可达150%,具有较强的吸水性和吸放湿性能,可用于内墙调湿涂料.
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