Wenqing Zhang
Beijing University of Chemical Technology
Composite numberUltimate tensile strengthSurface modificationCuring (chemistry)DielectricComposite materialEpoxyFlexural strengthShear strengthMaterials sciencePolyacrylonitrileMolten saltOxideAerogelGraphenePyrolysisCarbon nanotubeMolecular dynamicsStress (mechanics)Nanocomposite
9Publications
4H-index
105Citations
Publications 8
Newest
#1Wenqing Zhang (Huada: Beijing University of Chemical Technology)H-Index: 4
#2Zihan Wang (Huada: Beijing University of Chemical Technology)H-Index: 1
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
view all 8 authors...
Abstract Molecular dynamics (MD) simulations were carried out to explore the ideal structure design of graphene oxide (GO) modified by poly (dopamine) (PDA) which is more conducive to performances improvement of epoxy resin composites. The epoxy resin matrix was compounded with PDA-modified GO (PDA-GO) particles with different structures including the surface modification and the interlayer inserted modification. The interaction energy (Einter), molecular mobility (MSD), packing density (RDF), t...
2 CitationsSource
#1Wenwei ZhanH-Index: 6
#2Xue FuH-Index: 3
Last. Xiaoping YangH-Index: 44
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Aromatic amine modified 3D porous graphene aerogel was prepared through chemical reduction and self-assembly of graphene oxide sheets in one step by using diaminodiphenylmethane (DDM) as a reducing agent, modifying agent, and curing agent. Subsequently, the DDM-modified graphene aerogel (DGA) was fully infiltrated with epoxy resin to obtain the DGA/epoxy composites. The abundant amine groups derived from DDM on the DGA can react with epoxy resin to strengthen the interfacial interaction, further...
1 CitationsSource
#1Yaotian Su (Huada: Beijing University of Chemical Technology)H-Index: 2
#2Wenqing Zhang (Huada: Beijing University of Chemical Technology)H-Index: 4
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
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Polymer dielectrics possess excellent flexibility compared with inorganic ceramic materials. However, the relatively low dielectric constant and working temperature significantly constrain their wi...
Source
#1Wenqing Zhang (Huada: Beijing University of Chemical Technology)H-Index: 4
#2Xi Deng (Huada: Beijing University of Chemical Technology)H-Index: 2
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
view all 4 authors...
Abstract Carboxyl-functionalized carbon nanotubes (CNTs-COOH) and the amine-functionalized carbon nanotubes (CNTs-NH2) were incorporated into the surface sizing agent of carbon fibers respectively, for modifying the interface between the fibers and the matrix. Experimental analyses of the interfacial shear strength, flexural properties, and inter-laminar shear strength revealed the beneficial effects of the CNTs-COOH and negative impacts of the CNTs-NH2 on the interfacial and mechanical properti...
44 CitationsSource
#1Wu Tianyu (Huada: Beijing University of Chemical Technology)H-Index: 1
#2Wenqing Zhang (Huada: Beijing University of Chemical Technology)H-Index: 4
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
view all 6 authors...
Carbon fiber-reinforced polymer composites have been widely used in various fields and have inevitably produced large amounts of composite waste. The recycling of carbon fibers with high value has become an active research topic at related institutions and production enterprises. In this paper, the catalytic pyrolysis of T700 carbon fiber/epoxy composites in molten salt was studied. Due to the efficient solubility of molten ZnCl2 for the epoxy matrix and catalytic fracture of the C–N bonds by th...
12 CitationsSource
#1Wenqing Zhang (Huada: Beijing University of Chemical Technology)H-Index: 4
#2Yang QingH-Index: 5
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
view all 7 authors...
3 CitationsSource
#1Wenqing ZhangH-Index: 4
#2Hao LiH-Index: 9
Last. Xiaoping YangH-Index: 44
view all 7 authors...
24 CitationsSource
#1Wenqing Zhang (Huada: Beijing University of Chemical Technology)H-Index: 4
#2Yang Qing (SGCC: State Grid Corporation of China)H-Index: 1
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
view all 5 authors...
Abstract Theoretical modulus of three kinds of epoxy matrices, including diethylene toluene diamine (DETDA)/4,5-epoxyclyclohexyl-1,2-diglycidyldiformate(TDE85), m -phenylenediamine (MPD)/TDE85 and single-walled carbon nanotube (SWCNT) reinforced DETDA/TDE85 were investigated via molecular dynamics (MD) simulation to establish the structure–property relationships. The flexibility and mobility of molecular chains, the packing ability of cross-linked chain segment, the fraction of free volume of ep...
27 CitationsSource
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