Epoxy/starch-modified nano-zinc oxide transparent nanocomposite coatings: A showcase of superior curing behavior

Sari, Morteza Ganjaee; Saeb, Mohammad Reza; Shabanian, Meisam; Khaleghi, Mahroo; Vahabi, Henri; Vagner, Christelle; Zarrintaj, Payam; Khalili, Reza; Paran, Seyed Mohammad Reza; Ramezanzadeh, Bahram; Mozafari, Masoud

doi:10.1016/j.porgcoat.2017.11.016

Cited by 105 publications

(22 citation statements)

References 30 publications

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“…Kissinger–Akahira–Sunose kinetics model is an integral form of the isoconversional methods, which can make possible the prediction of the activation energy of the reaction by using the following relation :

italicln ((), \frac{β_{i}}{T_{α, i}^{1.92}}) = italicConst . - 1.0008 ((), \frac{E_{α}}{{RT}_{α}})

…”

Section: Theoretical and Experimental Analysesmentioning

confidence: 99%

Triple‐faced polypropylene: Fire retardant, thermally stable, and antioxidative

Vahabi

Paran²,

Shabanian

et al. 2019

Vinyl Additive Technology

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A halogen‐free nitrogen‐rich additive was used to make polypropylene (PP) prepared for three different missions: fire retardancy, thermal stability, and antioxidative properties. The prepared additive was composed of a cyclodextrin, a nanohydroxyapatite, and a poly[[6‐[(1,1,3,3,‐tetramethylbutyl)amino]‐1,3,5‐triazine‐2,4‐diyl][(2,2,6,6‐tetramethyl‐4‐piperidinyl)imino]‐1,6‐hexanediyl[2,2,6,6‐tetramethyl‐4‐piperidinyl)imino] (SABO®STAB) integrated into a unique molecule, namely, BSDH. Fire retardancy performance of BSDH in PP was compared with that of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) commercially available additive in terms of cone calorimeter results. Thermal stabilities of PP/BSDH and PP/DOPO composites were compared by changes observed in pyrolysis activation energy values measured in thermogravimetric analysis under nitrogen atmosphere at various heating rates. Flame retardancy of PP/BSDH composite was reflected in a drop in the peak of Heat Release Rate by ca. 31% with respect to neat PP. Very interestingly, the results show that BSDH additive retarded thermal oxidation of PP macromolecular chains when compared with DOPO commercially available flame retardant, as signaled by a rise in oxidation induction time value as well as an increased early‐stage activation energy needed for thermal decomposition of PP in the presence of BSDH. J. VINYL ADDIT. TECHNOL., 25:366–376, 2019. © 2019 Society of Plastics Engineers

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italicln ((), \frac{β_{i}}{T_{α, i}^{1.92}}) = italicConst . - 1.0008 ((), \frac{E_{α}}{{RT}_{α}})

…”

Section: Theoretical and Experimental Analysesmentioning

confidence: 99%

Triple‐faced polypropylene: Fire retardant, thermally stable, and antioxidative

Vahabi

Paran²,

Shabanian

et al. 2019

Vinyl Additive Technology

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“…One of the alternative ways to improve the absorption selectivity is by combining GO with a dendrimer as a composite material. (8)(9)(10)(11) Dendrimers are highly branched globular structures ranging from 2 to 20 in size; they are highly reactive because of the presence of a large number of terminal functional groups. (12)(13)(14) They become favorite synthetic macromolecules in the field of biosensor technology, owing to their extraordinary structural properties such as monodispersity, controllable size and structure, modifiable surface functionalities, hydrophilicity, and high mechanical and chemical stabilities.…”

Section: Introductionmentioning

confidence: 99%

Optical Studies of Graphene Oxide/Poly(amidoamine) Dendrimer Composite Thin Film and Its Potential for Sensing Hg2+ Using Surface Plasmon Resonance Spectroscopy

Roshidi¹,

Fen²,

Omar³

et al. 2019

Sensors and Materials

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In this study, a graphene oxide/poly(amidoamine) (GO/PAMAM) dendrimer composite thin film was developed for the potential detection of Hg 2+ using surface plasmon resonance (SPR) spectroscopy. Fourier transform infrared spectroscopy (FTIR) analysis proved the presence of amino, carboxylic acid, carboxyl, and hydroxyl groups in the GO/PAMAM thin film. The optical properties of the thin film were characterized using UV-Vis absorption spectroscopy. The UV-Vis analysis showed that the absorption of the GO/PAMAM thin film was high with an optical band gap of 4.01 eV. The incorporation of the GO/PAMAM thin film with SPR spectroscopy produced positive responses towards various Hg 2+ concentrations. Atomic force microscopy results indicated that the thin film has an irregular edge and hence proved the interaction of mercury ions with the thin film.

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“…Various literatures have reported about the fabrication of EP‐PDMS polymer coatings reinforced with fumed nanosilica, layered silicates, alumina, TiO 2 , CuO, CTAB‐CuO, barium sulfate, tourmaline, nano calcium carbonate, starch, and coal tar . Among them, zinc oxide (ZnO) nanoparticle is well known for its high chemical stability, excellent electrochemical coupling coefficient, outstanding photo stability, catalytic activity, and effective antibacterial properties . ZnO has been widely used as a reinforcement for EP‐PDMS matrix since it imparts hydrophobicity, excellent dispersion, ultraviolet (UV)‐blocking properties, electrostatic interaction with cell surfaces, and selective toxicity to bacterial cells .…”

Section: Introductionmentioning

confidence: 99%

Development of multifunctional polydimethylsiloxane (PDMS)‐epoxy‐zinc oxide nanocomposite coatings for marine applications

Verma

Das²,

Mohanty

et al. 2019

Polymers for Advanced Techs

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Multifunctional epoxy-polydimethylsiloxane nanocomposite coatings with antifouling and anticorrosion characteristics have been developed via in situ polymerization method at different loading (1, 3, and 6.5 wt.%) of ZnO nanoparticles to cater marine applications. A detailed comparative analysis has been carried out between epoxy-polydimethylsiloxane control (EPC) and ZnO-reinforced coatings to determine the influence of ZnO loading on various properties. The incorporation of ZnO in EPC led to increase in root mean square (RMS) roughness to 126.75 nm and improved hydrophobicity showing maximum contact angle of 123.5°with low surface energy of 19.75 mN/m of nanocomposite coating as compared with control coating. The differential scanning calorimetry (DSC) result indicated improved glass transition temperature of nanocomposite coatings with highest T g obtained at 83.69°C in case of 1 wt.% loading of ZnO. The increase in hydrophobicity of the system was accompanied by upgraded anticorrosion performance exhibiting 98.8% corrosion inhibition efficiency (CIE) as compared with control coating and lower corrosion rate of 0.12 × 10 −3 mm/year. The Taber abrasion resistance and pull-off adhesion strength results indicated an increment of 34.7% and 150.7%, respectively, in case of nanocomposite coating as compared with the control coating.The hardness of nanocomposite coatings was also improved, and maximum hardness was found to be 65.75 MPa for nanocomposite coating with 1 wt.% of ZnO.Our study showed that the nanocomposite coating was efficient in inhibiting accumulation of marine bacteria and preventing biofouling for more than 8 months. The developed environment-friendly and efficient nanocomposite material has a promising future as a high-performance anticorrosive and antifouling coating for marine applications. | MATERIALSEP resin, i.e., DGEBA, Araldite GY-251 with EP equivalent value ranging from 180 to 189 g/eq and EP value of 5.30 to 5.55 eq/Kg, and hardener triethylene tetra amine (TETA, Aradur HY-951) with amine value 24.04 g/eq were purchased from M/s. Huntsman Int Pvt Ltd, Mumbai, India. PDMS-hydroxy terminated (h-PDMS) with dynamic viscosity of 25 centistokes and density value 0.95 g/mL at temperature of 25°C and APTES (3-aminopropyltriethoxysilane), assay (99%) and density value of 0.946 g/mL at 25°C (lit.) were procured from M/s. Sigma Aldrich Pvt Ltd, India. ZnO nanoparticle with average particle size of approximately 20 nm were purchased from M/s. Sisco

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Epoxy/starch-modified nano-zinc oxide transparent nanocomposite coatings: A showcase of superior curing behavior

Cited by 105 publications

References 30 publications

Triple‐faced polypropylene: Fire retardant, thermally stable, and antioxidative

Triple‐faced polypropylene: Fire retardant, thermally stable, and antioxidative

Optical Studies of Graphene Oxide/Poly(amidoamine) Dendrimer Composite Thin Film and Its Potential for Sensing Hg2+ Using Surface Plasmon Resonance Spectroscopy

Development of multifunctional polydimethylsiloxane (PDMS)‐epoxy‐zinc oxide nanocomposite coatings for marine applications

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