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

被引：9

作者：

Wu Mingbo ^{[1
]}

Wang Yuwei ^{[1
,2
]}

Jiang Wei ^{[1
]}

Li Shibin ^{[1
]}

Sun Qiqian ^{[1
]}

Zheng Jingtang ^{[1
]}

Qiu Jieshan ^{[2
]}

机构：

[1] China Univ Petr, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China

[2] Dalian Univ Technol, Sch Chem Engn, Carbon Res Lab, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

PETROLEUM SCIENCE | 2014年 / 11卷 / 04期

基金：

中国国家自然科学基金;

关键词：

COPNA resin; modification; epoxy resin; heat resistance; mechanical property; VACUUM RESIDUE; CO-CRACKING; OIL;

D O I：

10.1007/s12182-014-0374-x

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

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 (H-1-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.

引用

页码：578 / 583

页数：6

共 18 条

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