文献类型：期刊文献

英文题名：Preparation and characterization of reprocessable poly(1,2,3-triazolium)

作者：Zhang, Jun[1];Lv, Shuaikang[1];Tang, Junkun[1];Liu, Zuozhen[2];Huang, Farong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymer Mat & Related Tech, Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Huachang Polymers Co Ltd, Shanghai, Peoples R China

年份：2024

卷号：141

期号：26

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20241715973863);WOS:【SCI-EXPANDED(收录号:WOS:001203419700001)】；

基金：No Statement Available

语种：英文

外文关键词：mechanical properties; recycling; resins

摘要：Poly(1,2,3-triazolium) (PTAM) is a dynamic reversible crosslinking polymer based on 1,2,3-triazolium. Structural rearrangement of PTAM can occur through dynamic exchange reactions of 1,2,3-triazolium. But there are not any applications derived from the dynamic reversible crosslinking properties of 1,2,3-triazolium. In the paper, to expand the function and application of PTAM, a reprocessable PTAM resin has been prepared and the reprocess ability is studied in detail. PTAM can achieve complete stress relaxation within 2 min at 160 degrees C through the exchange reaction of dynamically reversible crosslinked 1,2,3-triazolium. Under the condition of 160 degrees C and 10 MPa pressure, PTAM can achieve mechanical properties recovery after 2 h of reprocessing. The recovery rate of tensile strength can reach 94.2%. After four consecutive cycles reprocessing, the recovery rate of tensile strength is maintained at about 90%. And the thermal stability of PTAM is unchanged. PTAM has a possible application in the recycling of thermoset-based plastics and composites. The result provides a reference for the functional application and development of dynamic reversible crosslinking polymers. We studied the reprocessable poly(1,2,3-triazolium) (PTAM) based on the dynamic reversible crosslinking 1,2,3-triazolium. PTAM could achieve stress relaxation within 2 min at 160 degrees C. And PTAM could be reprocessed. After four consecutive reprocessing, the recovery rate of tensile strength was still maintained at about 90%. image