Polyurethane Modified with Zeolite 4A for the Controlled Release of Urea
文献类型: 外文期刊
第一作者: Li, Lixia
作者: Li, Lixia;Cao, Bing;Xiao, Qiang;Yi, Wenping;Ni, Xiaohui;Li, Lixia;Cao, Bing;Xiao, Qiang;Yi, Wenping;Ni, Xiaohui;Song, Huaihe
作者机构:
关键词: Coating;composites;controlled release;polyurethanes;porous materials;urea
期刊名称:POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING ( 影响因子:3.267; 五年影响因子:2.633 )
ISSN: 0360-2559
年卷期: 2017 年 56 卷 8 期
页码:
收录情况: SCI
摘要: Pure polyurethane (PU) and its composites with zeolite 4A prepared through the in situ reaction were used as coating materials for urea. On the basis of analyzing their morphologies and structures, the effect of zeolite 4A content on release property of coated urea was investigated. SEM images showed the formation of the good interface between microsized zeolite 4A and polyurethane. When 2% of zeolite 4A was added into PU, the N release duration of coated urea reached 70 d, implying that PU/zeolite 4A composite can be used as an alternate strategy to improve the N use efficiency in controlled release fertilizer. [GRAPHICS] .
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