EVA/OSEP复合发泡材料的形貌及性能研究  

Morphology and mechanical properties of EVA/OSEP foamed materials

作　　者：邓富泉[1] 马建中[1,2] 薛朝华[1] 段洲洋[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]温州轻工研究院,浙江温州325000

出　　处：《功能材料》2013年第7期970-973,978,共5页Journal of Functional Materials

基　　金：陕西省重大科技创新项目专项基金资助项目(2009ZKC03-14);温州科技局攻关资助项目(H20100082)

摘　　要：采用双十烷基二甲基氯化铵(DDAC)对海泡石(SEP)进行有机化改性,制备有机改性海泡石(OSEP)和乙烯-醋酸乙烯共聚物(EVA)复合发泡材料。采用XRD考察DDAC对OSEP的改性效果,通过SEM对复合发泡材料的泡孔结构进行观察和分析,并研究了复合发泡材料的物理性能。结果表明,SEP经过有机化改性后层间距显著增加,OSEP能够起到异相成核作用,可以改善EVA发泡材料的泡孔结构和物理性能。Sepiolite （SEP） was modified with dioctadecyl dimethy/ ammonium chloride （DDAC） to obtain or-ganophilic sepiolite （OSEP）, and nanocomposite foams based on ethylene vinyl acetate copolymer （EVA） had been prepared by melt blending EVA with addition of OSEP. The clay interlayer spacing of SEP by DDAC was characterized by X-ray diffraction. The cell microstructure of EVA/OSEP foams was analyzed by scanning elec-tron microscopy and the mechanical properties had been investigated. It had been shown that the clay interlayer spacing of SEP was increased after organic modification. The OSEP layer could be employed as a heterogeneous nucleation agent to improve the unifornfity of cell structure of the foamed samples and the physical properties.

关 键 词：乙烯-醋酸乙烯共聚物 海泡石 有机化改性 发泡材料 力学性能 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]