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环氧类玻璃高分子材料的热回收性能研究
引用本文:李自夏,冉印,,丁博,李飞.环氧类玻璃高分子材料的热回收性能研究[J].石化技术与应用,2023,0(1):7-12.
作者姓名:李自夏  冉印    丁博  李飞
作者单位:1.重庆工商大学 废油资源化技术与装备教育部工程研究中心,重庆 400067;2.西南大学 化学化工学院,重庆 400715;3.重庆国际复合材料有限公司 创新中心,重庆 400082
基金项目:重庆市自然科学基金项目博士后基金(项目编号:cstc 2019 jcyj-bsh 0107);;重庆市教育委员会科学技术研究项目(项目编号:KJQN 201800840);
摘    要:采用动态交联技术制备了环氧类玻璃高分子材料(EPV),将其制得的片材在不同模压条件下进行重复加工,考察了模压温度、模压时间和模压压力对EPV回收材料性能的影响。结果表明:重复加工没有造成EPV回收材料的降解;模压温度越高,模压时间越长,模压压力越大,越有利于EPV的愈合和重塑;在模压温度为180℃,模压压力为20 MPa,模压时间为10 min的较佳条件下,重复加工的EPV回收材料力学性能与初始EPV片材的接近。

关 键 词:环氧类玻璃高分子  动态交联  热回收性能  模压  温度  时间  压力

Heat recovery performance of epoxy vitrimer
LI Zi-xia ,Ran Yin,,DING Bo,LI Fei.Heat recovery performance of epoxy vitrimer[J].Petrochemical Technology & Application,2023,0(1):7-12.
Authors:LI Zi-xia  Ran Yin    DING Bo  LI Fei
Affiliation:1. Engineering Research Center for Waste Oil Recovery Technology and Equipment,Chongqing Technology and Business University, Chongqing 400067,China; 2. School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715,China; 3.Chongqing Polycomposites International Corporation, Chongqing 400082,China
Abstract:The sheet prepared by epoxy vitrimers (EPV),which was produced by dynamic crosslinking technology, was reprocessed under different molding conditions. The effects of molding temperature, molding time and molding pressure on the properties of recycled EPV were investigated. The results showed that remolding process did not cause degradation of EPV. The higher the molding temperature, the longer the molding time, and the greater the molding pressure, the more conducive to the healing and remodeling of EPV. Under the optimal conditions of molding temperature 180 ℃, molding pressure 20 MPa and molding time 10 min, the mechanical properties of the recycled EPV material were close to original EPV sheet.
Keywords:epoxy vitrimer  dynamic crosslinking  heat recovery performance  molding  temperature  time  pressure
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