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OALib Journal期刊
ISSN: 2333-9721
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丙烯酸酯型UV固化聚合物改性层状双氢氧化物纳米复合材料的制备及性能研究
DOI: 10.3724/SP.J.1105.2013.13121, PP. 1531-1536
Keywords: 层状双氢氧化物,纳米复合材料,UV光固化,丙烯酸酯
Abstract:
采用先插层后接枝的“两步法”，将十二烷基硫酸钠（SDS）和半加成物异佛尔酮二异氰酸酯-丙烯酸羟乙酯（IPDI-HEA）先后引入层状双氢氧化物（LDH）中，制备得到层间含有UV固化型丙烯酸酯基团的有机改性LDH.随后在UV光辐照下，LDH层间丙烯酸酯活性基团参与UV固化反应，通过原位聚合法得到完全剥离的聚合物/LDH纳米复合材料.通过X-射线衍射（XRD）和红外分析（FTIR）证明了LDH的插层改性结构；透射电镜（TEM）证实了LDH以纳米级剥离分散于聚合物基体中.并对复合材料的热稳定性和机械性能进行了研究，发现当LDH在复合材料中含量为5%时，起始分解温度较纯聚合物上升64.6K，最终残余量从4.0%上升到8.7%，而拉伸强度也从原来的8.5MPa上升至14.7MPa，其综合性能远优于未复合LDH的UV固化型聚合物.
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