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Preparation And Mechanical Properties Of Epoxy Resin Based Nanocomposites

Posted on:2015-09-28Degree:MasterType:Thesis
Country:ChinaCandidate:W F ZengFull Text:PDF
GTID:2181330434457073Subject:General and Fundamental Mechanics
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In another blend of various disciplines of academic background, nano-science andtechnology as the representative of materials science working on other disciplines of the21stcentury, industry and society with far-reaching impact. In the past decade, polymernanocomposites attracted great attention in academia and industry, and only a small amountof nano-additives can improve the performance of many polymer-based composites. Manyresearchers preparation of epoxy nanocomposites, nanoparticle surface modification modified,the macroscopic mechanical properties of composite materials, microstructurecharacterization of nano-particles in the epoxy matrix, the thermodynamic properties ofmaterials, and many other have carried out extensive and in-depth study. Althoughpredecessors in several respects has done a lot of research work, but in terms of preparationand study of the mechanical properties of the material as well as a lot of work needs to bedone, how nanoparticles enhanced toughening mechanism requires further study. The maincontents of this paper are summarized as follows:1. Prepared epoxy/graphene oxide nanocomposites and epoxy/nano (SiO2, TiO2, ZnO)nanocomposites by directly mixing method. On the epoxy nanocomposites prepared uniaxialcompression tests conducted studies and scanning electron microscopy, XRD experiments,the experimental results showed that nano-SiO2, TiO2, ZnO and graphene oxide added tomake nanocomposite compressive strength and elastic modulus of the material and comparedto pure epoxy, has been significantly improved.2. For epoxy nanocomposites were studied experimentally uniaxial compression creepanalyzes the experimental results, the experiment showed that a small amount of GO, SiO2,TiO2, ZnO is added, can be more greatly improve the creep resistance of composites.3. Established on the basis of previous theoretical model of epoxy based nanocomposites,Eshelby spherical inclusions model uses a macro approach to obtain material equivalentmaterial parameters, the compression modulus the experimental results and theoretical resultswere compared, the results show that the theoretical condition is met, both are consistent, toverify the correctness of the theoretical model.
Keywords/Search Tags:epoxy resin, graphene oxide, nanoparticles, mechanical properties, multi-scale model
PDF Full Text Request
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