石墨/聚氨酯弹性体复合材料的制备及性能研究  

Synthesis and Characterization of Graphite/Polyurethane Elastomer Composites

作　　者：张志毅[1,2] 薛艺[1,2] 刘亚青[1,2] 贾林才[3] 

机构地区：[1]山西省高分子复合材料工程技术研究中心,太原030051 [2]中北大学材料科学与工程学院,太原030051 [3]山西省化工研究所,太原030021

出　　处：《聚氨酯工业》2013年第3期14-17,共4页Polyurethane Industry

摘　　要：采用原位插层聚合,通过预聚体法合成石墨/聚氨酯弹性体(PUE)复合材料,经X-射线衍射(XRD)和扫描电子显微镜(SEM)测试表明,石墨在聚氨酯弹性体中的分散性和相容性较好;当石墨质量分数小于15%时,随着石墨含量增加,PUE复合材料的拉伸强度、300%定伸强度、撕裂强度和扯断伸长率不断升高;石墨质量分数进一步增加到30%时,其相关力学性能又开始下降,硬度稍有增加。综合分析,PUE复合材料表现出较好的力学性能。The graphite/polyurethane elastomer composite was synthesized through pre-polymerized method by in situ intercalative polymerization technology. The X-ray diffraction and scanning electron microscopy （SEM） showed that the graphite was well dispersed in polyurethane matrix and had better compatibility. The tensile strength, 300% stretching strength, tearing strength and elongation at break were increased w.hen the graphite mass fraction less than 15%. The related mechanical properties were decreased and the hardness had a little increased when the graphite mass fraction increased to 30%. Comprehensive evaluation, the graphite/polyurethane elastomer composite had better mechanical properties.

关 键 词：聚氨酯弹性体 石墨 插层聚合 

分 类 号：TQ334.1[化学工程—橡胶工业]