交联催化剂对聚三唑聚醚弹性体性能的影响  

Effects of Crosslinking Catalyst on Properties of Polytriazole-crosslinked Solid Elastomer

作　　者：张永丽 杨荣杰[2] 张维海[1] 高喜飞 姜恩周 张宇轩 ZHANG Yong-li;YANG Rong-jie;ZHANG Wei-hai;GAO Xi-fei;JIANG En-zhou;ZHANG Yu-xuan(Xi'an North Huian Chemical Industry Co.Ltd,Xi'an 710302,China;School of materials,Beijing Institute of Technology Beijing,Beijing 100081,China)

机构地区：[1]西安北方惠安化学工业有限公司,陕西西安710302 [2]北京理工大学材料学院,北京100081

出　　处：《含能材料》2022年第8期787-792,共6页Chinese Journal of Energetic Materials

摘　　要：为了研究交联催化剂2,4‑戊二酸铜‑环辛二烯复合物对弹性体性能的影响,以端炔基环氧乙烷‑四氢呋喃共聚醚(PTPET)为黏结剂,叠氮化合物为固化剂,添加质量分数为0.01%、0.02%、0.05%、0.10%交联催化剂,制备了系列聚三唑交联弹性体S1~S4,并采用红外光谱、热重分析法、平衡溶胀法、动态热机械分析法等对S1~S4进行化学结构、热稳定性、力学性能和网络结构进行表征。结果表明,PTPET弹性体较PET弹性体稳定,交联催化剂含量对S1~S4的热稳定性无影响,分解温度均在405℃附近;聚三唑交联弹性体S2网状结构最完善,力学性能最优,玻璃化转变温度T_(g)为-67.4℃。The effect of crosslinking catalyst Copper 2,4-glutarate-cyclooctadiene complex dosage on the properties of polytriazole-crosslinked solid elastomer was studied. Propargyl-terminated ethylene oxide-tetrahydrofuran copolymer(PTPET)was used as an adhesive and polyazide compound as an curing agent,a series of polytriazole-crosslinked solid elastomers S1-S4were prepared by adding crosslinked catalysts of 0.01%,0.02%,0.05% and 0.10%. The chemical structure,thermal stability,mechanical properties and network structure of polytriazole-crosslinked solid elastomers were characterized by FTIR,TG,equilibrium swelling method and DMA. It was found that PTPET elastomer is more stable than PET elastomer,the dosage of the catalyst did not influence the thermal stability of the elastomer,and the decomposition temperature for all samples is at 405 ℃. The elastomer S2 with 0.02% crosslinking catalyst has the most perfect network structure and the best mechanical properties,and the glass transition temperature is-67.4 ℃.

关 键 词：催化剂 点击化学 端炔基环氧乙烷‑四氢呋喃共聚醚 弹性体 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]