Effect of surface modified TiO2 nanoparticles on thermal, barrier and mechanical properties of long oil alkyd resin-based coatings

Radoman, Tijana S.; Džunuzović, Jasna V.; Trifković, Kata; Palija, Tanja; Marinković, Aleksandar D.; Bugarski, Branko; Džunuzović, Enis S.

doi:10.3144/expresspolymlett.2015.83

Cited by 15 publications

(25 citation statements)

References 48 publications

(60 reference statements)

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“…According to the TEM results, the average diameter of prepared nanoparticles is 3.9 ± 0.9 nm (Figure 1). This is in accordance with the X-ray diffraction (XRD) results presented elsewhere, where it was shown that synthesized TiO 2 nanoparticles are in an anatase crystal form with a coherent domain size of around 3.6 nm [38].…”

Section: Resultssupporting

confidence: 92%

“…These results indicate that imine DHBA-ODA was formed during the modification of TiO 2 nanoparticles, and that it was chemisorbed on the surface of TiO 2 through their two adjacent -OH phenolic groups of the aldehyde residue, leading to the formation of bridging complexes with Ti atoms on the surface [38,39]. The formation of the CT complex due to the chemisorption of DHBA-ODA on the surface of TiO 2 nanoparticles was also confirmed by UV-Vis spectroscopy ( Figure 4).…”

Section: (2) (2018) 46-53mentioning

confidence: 86%

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Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin

Džunuzović¹,

Ćirjaković²,

Kovač³

et al. 2018

Adv Techol

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The surface of anatase TiO 2 nanoparticles was modified with in situ synthesized imine, based on 3,4-dihydroxybenzaldehyde and octadecylamine. The modified TiO 2 nanoparticles were investigated using FTIR and UV-Vis spectroscopy, which confirmed the formation of the charge transfer complex between imine and surface of TiO 2 nanoparticles by the reaction of surface Ti atoms with hydroxyl groups of a modifying agent. TiO 2 nanoparticles modified with imine were further applied as a filler for the preparation of epoxy based nanocomposites. Thermal and mechanical properties of the prepared nanocomposites were examined using the dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis and hardness measurements. The obtained results have shown that modified TiO 2 nanoparticles have no significant influence on the glass transition temperature and that they slow down thermo-oxidative degradation of epoxy resin in the first stage and increase hardness of the crosslinked epoxy resin.

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Section: Resultssupporting

confidence: 92%

Section: (2) (2018) 46-53mentioning

confidence: 86%

Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin

Džunuzović¹,

Ćirjaković²,

Kovač³

et al. 2018

Adv Techol

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“…Because of their multiple potential applications, straightforward recoverability and excellent properties, a wide range of recent studies on synthetic routes have been undertaken to fabricate surface modified nanoparticles in order to increase their surface acidity/basicity [8][9][10][11][12][13]. This is of particular significance in relation to nano-catalysts for biodiesel production involving the use of cheap raw materials containing free fatty acids (FFAs) as the acid catalysts can facilitate simultaneous esterification of FFAs and transesterification of triglycerides without soap formation [14,15].…”

Section: Introductionmentioning

confidence: 99%

Biodiesel production from used cooking oil using a novel surface functionalised TiO2 nano-catalyst

Gardy

Hassanpour

Lai

et al. 2017

Applied Catalysis B: Environmental

195

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Please cite this article as: J. Gardy, A. Hassanpour, X. Lai, M.H. Ahmed, M. Rehan, Biodiesel production from used cooking oil using a novel surface functionalised TiO 2 nano-catalyst, Applied Catalysis B, Environmental (2017), http://dx.doi. org/10.1016/j.apcatb.2017.01.080 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights• A novel, efficient and recyclable mesoporous TiO 2 /PrSO 3 H solid acid nano-catalyst was synthesised.• We examined the catalytic activity, stability and reusability of synthesised mesoporous TiO 2 /PrSO 3 H.• The FAME yield from UCO was 98.3% under optimum process conditions.• Synthesised biodiesel from UCO satisfied ASTM D6751 and EN 14214 standards. ABSTRACTA novel, efficient and recyclable mesoporous TiO 2 /PrSO 3 H solid acid nano-catalyst was synthesised by the post-synthetic grafting of propyl sulfonic acid groups onto a mixed phase of a TiO 2 support. The synthesised nano-catalyst was characterised using FTIR, SEM, TEM, XPS, N 2 adsorption-desorption isotherms, XRD, DSC, TGA, and CHNS analysis. The percentage of loading for propyl sulfonic acid on the TiO 2 support was calculated using CHNS analysis and TGA. The catalytic performance of TiO 2 /PrSO 3 H on the production of the fatty acid methyl esters (FAME) via simultaneous esterification and transesterification reactions from used cooking oil (UCO) has been studied. The effects of different process parameters showed that 98.3% of FAME can be obtained after 9 hrs of reaction time with 1:15 molar ratio of oil to methanol, 60°C reaction temperature and 4.5 wt% catalyst loading. It was also found that the one-pot post-surface functionalisation strategy with hydrophilic functional groups (-SO 3 H) enhanced the acid strengths of the nano-catalyst providing more acid sites for the reactants, and improving the accessibility of methanol to the

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“…1,11,12 However, there are still some drawbacks in traditional alkyd resins, such as bad water resistance, low hardness, and fair thermal stability. 11,[13][14][15] Dibasic acids and acid anhydrides with rigid structures like that of a benzene ring or a fused ring were incorporated into alkyd resins to improve tensile strength, hardness, thermal stability and water resistance, etc. 16 Furthermore, more effort and attention was paid to tung oil as raw materials to prepare alkyd resins due to its highly unsaturated and conjugated triene structure.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characteristics of tung oil-based acrylated-alkyd resin modified by isobornyl acrylate

Chen

Guo

et al. 2017

RSC Adv.

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Effect of surface modified TiO2 nanoparticles on thermal, barrier and mechanical properties of long oil alkyd resin-based coatings

Cited by 15 publications

References 48 publications

Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin

Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin

Biodiesel production from used cooking oil using a novel surface functionalised TiO2 nano-catalyst

Synthesis and characteristics of tung oil-based acrylated-alkyd resin modified by isobornyl acrylate

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