This research focuses on synthesis and study of the properties of castor oil-based epoxy/carbon quantum dots (COEp/CQDs) nanocomposite coatings possessing resistance against UV. First, CQDs were synthesized by pyrolysis of starch using microwave-assisted method and characterized via various spectroscopic and microscopic methods. Next, certain quantity of castor oil as a renewable resource, CQDs with different weight percentages and a curing agent were added to epoxy resin and consequently COEp/CQDs were prepared. Through findings of FTIR, photoluminescence and UV-visible spectroscopy analyses, existent functional groups and fluorescent feature of the nanocomposite coatings were confirmed. UV-vis spectroscopy approved UV resistance of the COEp/CQDs coatings. As concentration of CQDs increased in resin matrix, UV absorption was maximized. The morphology and uniform dispersion of CQDs in the coatings matrix were verified by FESEM analysis. Results of TGA, pull-off adhesion strength and tensile tests, and DMTA analysis proved adding CQDs to the resin matrix led to progress of thermal endurance, adhesion strength, mechanical and viscoelastic properties of the synthesized coatings including an increase in storage modulus and Tg.
KumarSSamalSKMohantyS, et al.Bio-based tri-functional epoxy resin (TEIA) blend cured with anhydride (MHHPA) based cross-linker: thermal, mechanical and morphological characterization. J Macromolecul Sci A2018; 55: 496–506.
2.
DillinghamRGOakleyBRDan-JumboE, et al.Surface treatment and adhesive bonding techniques for repair of high-temperature composite materials. J Compos Mater2017; 48: 853–859.
3.
KayaIGulMSenolD. Synthesis and characterization of epoxy resins containing imine group and their curing processes with aromatic diamine. J Macromolecul Sci Part A2019; 56: 618–627.
4.
BaeGAhnCJeonS. Transparent polymer nanocomposite with three-dimensional ZnO thin-shell with high UV-shielding performance. Funct Compos Struct2021; 3: 025007.
5.
HanCWangFGaoC, et al.Transparent epoxy-ZnO/CdS nanocomposites with tunable UV and blue light-shielding capabilities. J Mater Chem C2015; 3: 5065–5072.
6.
ChennareddyRTuwairHKandilUF, et al.UV-resistant GFRP composite using carbon nanotubes. Constr Build Mater2019; 220: 679–689.
7.
Tcherbi-NartehAHosurMJeelaniS. Influence of nanoclay on the durability of woven carbon/epoxy composites subjected to ultraviolet radiation. Mech Adv Mater Struct2014; 21: 222–236.
8.
MoorthyMKumarVBPoratZE, et al.Novel polymerization of aniline and pyrrole by carbon dots. New J Chem2018; 42: 535–540.
9.
NikafsharSMcCrackenJDunneK, et al.Improving UV-stability of epoxy coating using encapsulated halloysite nanotubes with organic UV-stabilizers and lignin. Prog Org Coat2021; 158: 106338.
10.
ParimalamMIslamMRYunusRM. Effects of nanosilica, zinc oxide, titatinum oxide on the performance of epoxy hybrid nanocoating in presence of rubber latex. Polym Test2018; 70: 197–207.
11.
ParimalamMIslamMYunusR, et al.Effects of colloidal nanosilica on epoxy-based nanocomposite coatings. Prog Color Colorants Coat2019; 12: 71–82.
12.
PandaSSSamalSKMohantyS, et al.Preparation, characterization, and properties of castor oil-based flexible polyurethane/Cloisite 30B nanocomposites foam. J Compos Mater2017; 52: 531–542.
13.
MadhiAShirkavand HadavandB. Bio-based UV-curable urethane acrylate graphene nanocomposites: synthesis and properties. SN Appl Sci2020; 2: 724.
14.
KasetaiteSJolita OstrauskaiteJGrazulevicieneV, et al.Biodegradable glycerol-based polymeric composites filled with industrial waste materials. J Compos Mater2017; 51: 4029–4039.
15.
MadhiAShirkavand HadavandB. Tri-functional bio-friendly cross-linker for UV-curable coatings: synthesis and study of viscoelastic properties. Prog Color Colorant Coat2021; 14: 199–207.
16.
PandaSSPandaBPMohantyS, et al.Synthesis and properties of castor oil-based waterborne polyurethane cloisite 30B nanocomposite coatings. J Coat Technol Res2017; 14: 377–394.
17.
KausarA. Polymer/carbon-based quantum dot nanocomposite: forthcoming materials for technical application. J Macromolecul Sci Part A2019; 56: 341–356.
18.
VercelliB. The role of carbon quantum dots in organic photovoltaics: a short overview. Coatings2021; 11: 232.
19.
GeorgeMMohantyA. Investigation of mechanical properties of graphene decorated with graphene quantum dot‐reinforced epoxy nanocomposite. J Appl Polym Sci2020; 137: 48680.
20.
GaoMXYangLZhengY, et al."Click" on alkynylated carbon quantum dots: an efficient surface functionalization for specific biosensing and bioimaging. Chem A Eur J2017; 23: 2171–2178.
21.
ZhangQQYangTLiRS, et al.A functional preservation strategy for the production of highly photoluminescent emerald carbon dots for lysosome targeting and lysosomal pH imaging. Nanoscale2018; 10: 14705–14711.
22.
ZhuLShenDWangQLuoKH. Green Synthesis of Tunable Fluorescent Carbon Quantum Dots from Lignin and Their Application in Anti-Counterfeit Printing. ACS Appl Mater Interfaces.2021; 13: 56465–56475.
23.
WongrerkdeeSPimpangP. Ultraviolet‐shielding and water resistance properties of graphene quantum dots/polyvinyl alcohol composite-based film. J Met Mater Miner2020; 30: 90–96.
24.
LimSYShenWGaoZ. Carbon quantum dots and their applications. Chem Soc Rev2015; 44: 362–381.
25.
FengHQianZ. Functional carbon quantum dots: a versatile platform for chemosensing and biosensing. Chem Rec2018; 18: 491–505.
26.
LeeUHeoELeTH, et al.Carbon dots for epoxy curing: anti-forgery patterns with long-term luminescent stability. Chem Eng J2021; 405: 126988.
27.
WangYXieZWangX, et al.Fluorescent carbon-dots enhance light harvesting and photosynthesis by overexpressing PsbP and PsiK genes. J Nanobiotechnol2021; 19: 260.
28.
QuSWangXLuQ, et al.A biocompatible fluorescent ink based on water-soluble luminescent carbon nanodots. Angew Chem Int Ed2012; 51: 12215–12218.
29.
YuanXLiuZGuoZ, et al.Cellular distribution and cytotoxicity of graphene quantum dots with different functional groups. Nanoscale Res Lett2014; 9: 108.
30.
ZhaoLWangYZhaoX, et al.Facile synthesis of nitrogen-doped carbon quantum dots with chitosan for fluorescent detection of Fe3+. Polymers2019; 11: 1731.
31.
KuoWSShenXCChangCY, et al.Multiplexed graphene quantum dots with excitation-wavelength-independent photoluminescence, as two-photon probes, and in ultraviolet-near infrared bioimaging. ACS Nano2020; 14: 11502–11509.
32.
TianPTangLTengKS, et al.Graphene quantum dots from chemistry to applications. Mater Today Chem2018; 10: 221–258.
33.
ChinigarAOShomaliAValizadehH. Boron/nitrogen co-doped carbon quantum dots as a high sensitive and selective fluorescent sensor for PO43- detection. Org Commun2020; 13: 9–18.
34.
LiuGWangXHanG, et al.Earth abundant colloidal carbon quantum dots for luminescent solar concentrators. Mater Adv2020; 1: 119–138.
35.
MadhiAShirkavand HadavandBAmoozadehA. Thermal conductivity and viscoelastic properties of UV-curable urethane acrylate reinforced with modified Al2O3 nanoparticles. Prog Color Color Coat2017; 10: 193–204.
36.
MadhiASirkavand HadavandB. Fluorescent epoxy-graphene quantum dots nanocomposites: synthesis and study of properties. Polym-plast Tech Mat2022; 61: 117–130.
37.
BahlakehGRamezanzadehBRamezanzadehM. New detailed insights on the role of a novel praseodymium nanofilm on the polymer/steel interfacial adhesion bonds in dry and wet conditions: an integrated molecular dynamics simulation and experimental study. J Taiwan Inst Chem Eng2018; 85: 221–236.
38.
GobiNVijayakumarDKelesO, et al.Infusion of graphene quantum dots to create stronger, tougher, and brighter polymer composites. ACS Omega2017; 2: 4356–4362.
39.
MadhiAShirkavand HadavandBAmoozadehA. UV-curable urethane acrylate zirconium oxide nanocomposites: synthesis, study on viscoelastic properties and thermal behavior. J Compos Mater2018; 52: 2973–2982.
40.
MohammadianJShirkavand HadavandBKhajenooriS. Synthesis and investigation on viscoelastic properties of urethane acrylate-polyaniline. Prog Color Color Coat2018; 11: 241–252.
