A nitrile functionalized graphene filled ethylene propylene diene terpolymer rubber composites with improved heat resistance. (1st February 2018)

• Record Type: Journal Article
• Authors: Lei, Yajie; He, Jiangping; Zhao, Qi; Liu, Tao
• Is Part Of: Composites. Number 134(2018)
• Page Start: 81
• Page End: 90
• Publication Date: 2018-02-01
• Subjects: Functionalized graphene -- Ethylene propylene diene terpolymer rubber -- Heat resistance -- Mechanical properties; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2017.09.051
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Ethylene propylene diene terpolymer rubber (EPDM) is susceptible to temperature, and heat can greatly increase the molecular mobility which degrades the mechanical properties of a rubber part. To overcome this problem, EPDM composites containing various nitrile functionalized graphene (GN-CN) were prepared and investigated for the effects of surface modification on the mechanical properties under low and high temperature. Results indicated that, the tensile strength of 3phr GN-CN filled EPDM composite reaches 11.8 and 6.0 MPa at 25 °C and 70 °C, respectively, which is 63.9% and 100% higher than that of unfilled one. Meanwhile, the strength loss of the EPDM/GN-CN composite under 70 °C is 49.1%, which is 9.2% lower than that of EPDM. It was demonstrated that, the reaction of the nitrile groups is benefit to the tensile strength and heat resistance improving of EPDM.