Influence of HNT-ZnO Nanofillers on the Performance of Epoxy Resin Composites for Marine Applications
Author:
Şomoghi Raluca12ORCID, Mihai Sonia1, Teodorescu George-Mihail2, Vuluga Zina2ORCID, Gabor Augusta Raluca2, Nicolae Cristian-Andi2, Trică Bogdan2ORCID, Vătău Daniel Mihai Stănescu2, Oancea Florin2, Stănciulescu Cătălin Marian3
Affiliation:
1. Faculty of Petroleum Refining and Petrochemistry, Petroleum-Gas University of Ploiesti, 100680 Ploiesti, Romania 2. National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei Street, No. 202, 6th District, 060021 Bucharest, Romania 3. Qwerty Development Macada-M Srl, Iancului Street, No. 29, 2nd District, 021716 Bucharest, Romania
Abstract
Epoxy resin was conjugated with halloysite nanotubes (HNT) and different types of ZnO nanoparticles (commercial ZnO and modified ZnO-ODTES) to obtain HNT-ZnO/epoxy resin composites. These ZnO nanoparticles (ZnO NPs) were utilized with the intention to enhance the interfacial bonding between the epoxy resin and the reinforcing agent (HNT). The properties of resulted epoxy resin composites were characterized by various methods such as FTIR-ATR, TGA, DSC, TEM-EDX, and Nanoindentation analyses. The thermal properties of the epoxy resin composites were enhanced to a greater extent by the addition of HNT-ZnO nanofillers. DSC testing proved that the modification in the glass transition temperature can be due to the physical bonding between the epoxy resin and filler (HNT and/or ZnO). It was seen that the epoxy resin modified with HNT and ZnO-ODTES has the highest resistance to scratching by having a good elastic recovery as well as high values for surface hardness (~187.6 MPa) and reduced modulus (2980 MPa). These findings can pave the way for the developing of ZnO-based marine coatings with improved properties.
Funder
Ministry of Research, Innovation, and Digitization through CCCDI—UEFISCDI
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