文献类型：期刊文献

中文题名：基于酚醛结构的聚三唑树脂及其复合材料

英文题名：New novolac-based polytriazole resins and their composites

作者：Ye, Lvyuan[1]; Wan, Liqiang[1]; Ma, Mingming[1]; Han, Jingbo[1]; Jiang, Songda[1]; Huang, Farong[1]

机构：[1] Key Laboratory of Specially Functional Polymeric Materials and Related Technology, East China University of Science and Technology, Shanghai, 200237, China

年份：2018

卷号：35

期号：7

起止页码：1762

外文期刊名：Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica

收录：EI(收录号：20184105915866)

语种：中文

外文关键词：Temperature - Activation energy - Glass transition - Curing - Fiber reinforced plastics - Rheology

摘要：A kind of novolac-based polytriazole (NPTA) resins was designed and synthesized from propargyl-functionalized novolac resin and diazides. The rheological properties, curing behavior and thermal properties of the novolac-based polytriazole resins were studied. The NPTA resins were also evaluated as the matrix for carbon fiber reinforced composites. The results reveal that the NPTA resins have good processiblity. The initial curing temperature is under 80℃, while the activation energy for the cross-linking is higher than the reported linear polytriazoles. The chain structures have little effect on the rheological properties, curing behavior and apparent activation energy of curing reaction of the NPTA resins. However, the thermal properties of the cured resins are greatly influenced by the structure of the crosslinked backbone. The glass transition temperature of the resins arrives at as high as 278℃. The flexural strengths of the T700 carbon fiber-reinforced NPTA composites (T700/NPTA) at ambient temperature reach the value higher than 1 590 MPa and their retention rates at 150℃ stand over 68.6%. ? 2018, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.