凹凸棒石/聚丙烯酸钾包膜材料的制备与性能研究  

Synthesis and properties of attapulgite/polypropylene potassium coated materials

作　　者：宋阳[1] 吴雪平[1] 韩效钊[1] 陈金佩[1] 谢中平[2] 牛宏顺 

机构地区：[1]合肥工业大学化工学院,合肥230009 [2]中盐安徽红四方股份有限公司,合肥230022 [3]合肥四方磷复肥有限责任公司,合肥231607

出　　处：《化工新型材料》2011年第5期121-123,共3页New Chemical Materials

基　　金：安徽省科技攻关项目(08010302177);合肥市科技攻关项目(合科20081029);合肥工业大学学生创新基金(XS09044);安徽省教育厅自然科学研究项目(KJ2009B027);安徽省高校优秀人才基金(2009SQRZ015)

摘　　要：以凹凸棒石与丙烯酸为主要原料,采用溶液聚合法制备凹凸棒石/聚丙烯酸钾复合膜材料,探讨了丙烯酸中和度、引发剂、交联剂和凹凸棒石添加量对膜材料吸水倍率和NH4+渗透速率的影响。结果表明:在丙烯酸单体浓度20%、中和度70%、引发剂用量0.1%、交联剂用量0.5%、凹凸棒石用量20%的条件下,合成的复合膜材料吸水倍率最高,达到219.06(g/g)。复合膜材料对NH4+也有较好的缓释作用。A composite film of attapulgite/polypropylene potassium for coating soluble granular fertilizer was prepared by solution polymerization method and attapulgite and acrylate as the main raw materials.The water absorbency and NH4 ＋ permeability of the films were affected by some factors,such as neutralization,the adding content of initiator,cross-linker and attapulgite.It was found that the water absorbency received a maximum value（219.06（g/g）） when the neutralization degree was 70%,and the adding content of initiator,cross-linker and attaulgite clay was 0.1%,0.5%,20%,respectively.

关 键 词：凹凸棒石 聚丙烯酸钾 复合膜材料 吸水 缓释 

分 类 号：TQ320.721[化学工程—合成树脂塑料工业]