Nitrile rubber/hindered phenol exterminated hyperbranched polyester materials with improved damping and mechanical performance

作者：Yang, Yuan; Zhao, Yun-Feng^*; Zhan, Mao-Sheng; Wang, Jian-Yue; Zhao, Chuan; Liu, Xiao-Yan; Zhang, Ji-Hua

来源：Journal of Applied Polymer Science, 2015, 132(39): 42605.

DOI：10.1002/app.42605

• dendrimers
• elastomers
• hyperbranched polymers and macrocycles
• rubber
• viscosity and viscoelasticity

Hindered phenol exterminated hyperbranched polyester (mHBP) is fabricated by esterification reaction. The mHBP is introduced into nitrile rubber (NBR) to prepare NBR/mHBP blends. Structure, damping and mechanical properties of NBR/mHBP blends are investigated by Fourier transform infrared spectroscopy (FTIR), H-1-NMR, dynamic mechanical thermal analyzer (DMTA), and tensile tester. FTIR spectra of the blends illustrate the intermolecular hydrogen bonding between the NBR and mHBP, contributing to the improvement of damping and mechanical properties. The results indicate that, with the increasing mHBP content, the T-g of the blends shifted to a higher temperature with a broadening temperature range and improved mechanical properties, showing an application in adjusting the T-g and temperature range without decreasing of loss factor.

• 出版日期2015-10-15
• 单位北京航空航天大学; 航天材料及工艺研究所