CIIR/AO-2246/PF复合材料的结构与阻尼性能研究  

Study on the structure and damping property of CIIR/AO-2246/PF composites

作　　者：丁国芳[1] 樊华[1] 陈立新[1] 罗世凯[1] 雷卫华[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,绵阳621900

出　　处：《化工新型材料》2014年第11期147-150,共4页New Chemical Materials

摘　　要：氯化丁基橡胶(CIIR)基体中添加了受阻酚AO-2246和酚醛树脂(PF),制备了CIIR/AO-2246/PF交联复合材料,并研究了其阻尼性能、力学性能和微观结构。结果表明:CIIR/AO-2246/PF交联复合材料的损耗因子-温度(tanδ-T)曲线只有一个单峰,是热力学相容体系,与纯的CIIR或CIIR/AO-2246交联体系橡胶相比,其tanδ峰明显向高温移动,最大损耗因子值及其对应温度都得到大幅度提高,且峰值增加到1.80左右,有效阻尼温域范围90℃以上。同时,AO-2246和PF的加入可以兼具提高CIIR基体材料力学性能,具有很好的实用价值。扫描电子显微镜(SEM)、差示扫描量热法(DSC)和傅里叶红外光谱(FTIR)的分析结果证明,AO-2246以无定形状态分散在CIIR/PF基体中,且AO-2246与基体CIIR之间形成了很强的分子间作用力,使材料的玻璃化温度大幅度上升。The CIIR/AO-2246/PF crosslinking composites were prepared and their damping properties, mechanical properties and microstructure were investigated. The results showed that the composites had only one tan3peak,which dispiaied the excellent compatibility between the AO-2246 and the CIIR/PF matrix. More importantly, the tanδpeaks of the composites shifted to the higher temperature with the use of the AO-2246 in the composites,and the tanδvalue of the composites obviously synchronously increased to about 1.80, and the temperature range were improved to 90℃. At the same time, the chemical crosslinking of the composites resulted in considerable tensile strength. The high damping and mechanical properties endowed the composites with a potential and promising application future in engineering. SEM,DSC and FTIR proved that the majority of AO 2246 dissolved in the CIIR/PF matrix and results illustrated that AO-2246 in the matrix existed in anamorphous form. The results proved that strong intermolecular interactions were formed between AO-2246 and CIIR/PF matrix.

关 键 词：复合材料 氯化丁基橡胶 AO-2246 结构 阻尼性能 

分 类 号：O631.1[理学—高分子化学]