Enhanced mechanical properties of silica nanoparticle-covered cross-linking graphene oxide filled thermoplastic polyurethane composite. (31st January 2018)

• Record Type: Journal Article
• Authors: Ren, Hui; Zhou, Yuming; He, Man; Xu, Ran; Ding, Binbin; Zhong, Xi; Tong, Yuan; Fan, Lidan; Cai, Zhilan; Shen, Hua; Huang, Yuzhong
• Is Part Of: New journal of chemistry. Volume 42:Number 4(2018)
• Page Start: 3069
• Page End: 3077
• Publication Date: 2018-01-31
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj03503a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : In this work, stacking graphene oxide (GOE) and silica nanoparticle-covered cross-linking graphene oxide (GOES) were successfully synthesized by using EDA simultaneous reduction and functionalization GO. Abstract : In this work, silica nanoparticle-covered cross-linking graphene oxide (GOES) was successfully synthesized in a stacking graphene oxide (GOE) solution where ethylenediamine (EDA) was used for simultaneous reduction and functionalization of the graphene oxide (GO). The GOES-filled thermoplastic polyurethane (TPU) composites were prepared through solution mixing and the mechanical properties of GOES/TPU were systematically investigated. The results revealed that the properties of composites filled with the cross-linked (GOE, GOES) filler are better than those of un-cross-linked (GO, GOS) filler. Furthermore, with a loading of 2 wt%, the tensile strengths and the tensile strains of GOES/TPU composites were significantly enhanced (48.9 MPa, 2140%), as compared to pure TPU (30.6 MPa, 1370%). The improvement in mechanical properties of GOES/TPU is attributed to the homogeneous dispersion of GOES in the TPU matrix and the strong interfacial interactions between them.