离子聚合物/聚氨酯弹性体合金的形态结构与性能  

Structure and Properties of Ionic Polymers/Polyurethane Elastomer Alloys

作　　者：王婷[1] 纪彦玲[1] 徐文龙[1] 武守鹏[1] 李再峰[1] 

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《聚氨酯工业》2014年第5期26-29,共4页Polyurethane Industry

摘　　要：以聚四氢呋喃醚二醇(PTMG)和甲苯二异氰酸酯(TDI)制备预聚体,再用含氢氧化单甲基丙烯酸锌盐(HZMMA)的混合扩链剂扩链制备了不同HZMMA含量的离子聚合物/聚氨酯弹性体(PUE)合金。采用原子力显微镜(AFM)、动态粘弹(DMA)、热重分析(TG)和X射线衍射(XRD)研究了HZMMA含量对离子聚合物/PUE合金的形态结构和性能的影响。结果表明,适量的HZMMA能够形成纳米级的poly-HZMMA粒子,改善了合金中PUE的微相分离程度;poly-HZMMA能够提高材料的储能模量和软段的最大降解温度;HZMMA发生了自聚且硬段相有结晶。A series of ionic polymer/polyurethane elastomer alloys were prepared by polytetramethyleneether glycol（ PTMG） ,toluene diisocyanate（ TDI） and the chain extenders which were consisted of dimethylthiotoluenedia-mine（ DMTDA ） , dicumyl peroxide （ DCP ） and hydroxyl zinc mono-methacrylate （ HZMMA ） by the prepolymer process. The effects of different contents of HZMMA for ionic polymer/polyurethane elastomer structure and proper-ties were studied by atomic force microscopy（ AFM） ,dynamic mechanical analysis（ DMA） ,thermo gravimetric anal-ysis（ TGA） and X-ray diffraction（ XRD） . The results indicated that nano poly-HZMMA particles were got and the degree of micro phase separation of the PUE were improved when the content of HZMMA was suitable. The nano poly-HZMMA particulars enhanced the storage modulus and improved the maximum decomposition temperature of the soft segment. The HZMMA had the self-polymeric reaction forming poly-HZMMA particles and the hard sege-ments had the microcrystalline structure.

关 键 词：离子聚合物 微相分离 形态 性能 

分 类 号：TQ334[化学工程—橡胶工业]