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Petroleum Science >2014, Issue 4: 578-583 DOI: https://doi.org/10.1007/s12182-014-0374-x

Improvements of heat resistance and adhesive property of condensed poly-nuclear aromatic resin via epoxy resin modification Open Access

文章信息

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作者：Wu Mingbo,Wang Yuwei,Jiang Wei,Li Shibin,Sun Qiqian,Zheng Jingtang and Qiu Jieshan

作者单位：

State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266580, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266580, China Carbon Research Laboratory, State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266580, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266580, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266580, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266580, China;Carbon Research Laboratory, State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China

投稿时间：2014-04-14

引用方式：Wu, M., Wang, Y., Jiang, W. et al. Pet. Sci. (2014) 11: 578. https://doi.org/10.1007/s12182-014-0374-x

文章摘要

A bisphenol epoxy resin was used as modifier to increase the heat resistance of condensed poly-nuclear aromatic (COPNA) resin. The basic properties of COPNA resin and modified resin were characterized by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (1H-NMR), vapor pressure osmometry (VPO) and elemental analysis (EA). Average structural parameters of resins were calculated by the improved Brown-Ladner method, and heat resistance of resins was tested by thermogravimetric analysis (TGA). The chemical structure, mechanical properties and heat resistivity of the resin/graphite composites prepared with different resins were compared. The results show that the adhesive property and heat resistance of COPNA resin can be remarkably improved by addition of 5 wt.% epoxy resin. The reason is that the reactions between epoxy groups of epoxy resin and hydroxyl groups of COPNA resin improve the heat resistance and adhesive property of COPNA resin. Electric motor brushes with good mechanical properties and low electrical resistivity were successfully prepared by using the modified resin as binder.

关键词

COPNA resin, modification, epoxy resin, heat resistance, mechanical property