Unique Damping Properties of Modified Eucommia Ulmoides Gum Bearing Polar and Branched Pendants

作     者：Zhi-Ying Han Heng-Chen Zhang You-Ji Li Ying Quan Mei-Ran Xie Zhi-Ying Han;Heng-Chen Zhang;You-Ji Li;Ying Quan;Mei-Ran Xie

作者机构：School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200241China National&Local United Engineering Laboratory of Integrative Utilization Technology of Eucommia UlmoidesCollege of Chemistry and Chemical EngineeringJishou UniversityJishou416000China 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2023年第41卷第6期

页      面：915-925,I0008页

核心收录：

学科分类：082903[工学-林产化学加工工程] 08[工学] 0829[工学-林业工程] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China(No.21871091) Foundation of Hunan Provincial Science and Technology Department(No.2020SK2028)。 

主　　题：rubber Polar Modified 

摘      要：Eucommia ulmoides gum(EUG)was a biobased hard rubber with the prospected broad applications in rubber products,whereas possessed poor elasticity and weak damping functionality at room temperature.After modification of EUG by triazolinedione-based Alder-ene reaction,the modified EUG containing varied amount of polar and branched pendants could become a new type of soft rubber and functional material with excellent damping properties,and especially exhibited the unique damping plateau with a wide effective damping temperature range of 132℃ covering from-35℃ to 97℃,large loss factor of 0.8,high damping coefficient of 0.53,and more hysteresis loss of 0.35.Therefore,this sustainable elastomeric material with adjustable damping performance would absorb more vibrational mechanical energy in a wide temperature range,and have broadened applications in energy-absorption devices and shock-absorbing materials.