Preparation and properties of eco-friendly two pack PU coatings based on renewable source (sorbitol) and its property improvement by nano ZnO

Anand, Abhijeet; Kulkarni, Ravindra D.; Gite, Vikas V.

doi:10.1016/j.porgcoat.2011.09.031

Cited by 35 publications

(22 citation statements)

References 10 publications

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“…The improvement of barrier properties of coatings by the presence of nano ZnO and nano ZnO-APS can be explained by the enhancement of coating density due to the adsorption of the epoxy resin on the nano ZnO and nano ZnO-APS thereby reducing the transport paths for the corrosive electrolyte to pass through the coating system [7][8][9].…”

Section: Electrochemical Impedance Measurementsmentioning

confidence: 99%

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Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Hằng

Dung

Trúc

et al. 2015

Progress in Organic Coatings

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Section: Electrochemical Impedance Measurementsmentioning

confidence: 99%

“…However, the nanoparticles tend to produce some agglomerates and migrate to coating bulk at high loadings [9][10][11]. The enhancement of physico-thermal and mechanical properties is strongly connected with the interfacial interactions with the binder and the dispersion degree of the nanoparticles in nanocomposite coatings [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Hằng

Dung

Trúc

et al. 2015

Progress in Organic Coatings

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“…Obtained from mentioned functional polyesters coatings exhibit good solvent resistance and mechanical properties [28]. A. Anand et al [29] obtained polyol by the reaction of sorbitol, 1,2,3,6-tetrahydrophthalic anhydride, adipic acid, and diethylene glycol and zinc acetate as a catalyst. Obtained hydroxyl-functional products were used to prepare the polyurethane coatings.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure and properties of poly(ether-urethane)s synthesized using a tri-functional oxypropylated glycerol as a polyol

Datta

Kosiorek

Włoch

2016

J Therm Anal Calorim

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The main aim of this work was to obtain poly(ether-urethane)s using tri-functional polyoxyalkylene polyol (Rokopol G1000), which introducing the chemical cross-links into the structure of polyurethanes. Poly(etherurethane)s were prepared using two-step method, called prepolymer method, which involves in the first step the reaction of 4,4 0 -diphenylmethane diisocyanate (MDI) and tri-functional polypropylene glycol glycerol triether polyol. In the second step, prepolymer chains were extended by using: 1,6-hexanediol, 1,4-butanediol in the mixture with poly(ethylene glycol) and poly(ethylene glycol). The prepolymer chains extending was realized at three different molar ratios of NCO groups (presented in prepolymer) to OH groups (presented in chain extender), i.e., 0.95, 1.00 or 1.05. The influence of chain extender type on the chemical structure, selected mechanical properties and thermomechanical properties of the obtained poly(ether-urethane)s was investigated. The results showed that applying different types of chain extenders results in obtaining materials with diversified mechanical properties, but very similar thermal stability. The performance of obtained poly(etherurethane)s is mostly affected by the chemical cross-links, which were introduced into soft segments by tri-functional polyetherol.

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“…In the field of surface coatings frequently used nanoparticles are TiO 2 , Ag 2 O, Al 2 O 3 , and others [16][17][18][19][20][21]. Polymers containing TiO 2 (NPs) had attracted significant attention due to their execute biocidal properties with their less volatile nature [22][23][24][25][26][27]. Literature survey reveals that castor oil based poly(urethane-esteramide)/TiO 2 nanocomposite coatings are not reported yet.…”

Section: Introductionmentioning

confidence: 99%

Development of Castor Oil Based Poly(urethane‐esteramide)/TiO₂ Nanocomposites as Anticorrosive and Antimicrobial Coatings

Shaik

Alam

Alandis

2015

Journal of Nanomaterials

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Castor oil based polyesteramide (CPEA) resin has been successfully synthesized by the condensation polymerization of N-N-bis (2-hydroxyethyl) castor oil fatty amide (HECA) with terephthalic acid and further modified with different percentages of 7, 9, 11, and 13 wt.% of toluene-2,4-diisocyanate (TDI) to obtain poly(urethane-esteramide) (UCPEA), via addition polymerization. TiO2(0.1, 0.2, 0.3, 0.4, and 0.5 wt%) nanoparticles were dispersed in UCPEA resin. The structural elucidation of HECA, CPEA, and UCPEA has been carried out using FT-IR,1H-NMR, and13C-NMR spectroscopic techniques while physicochemical and physicomechanical properties were investigated by standard methods. Thermal stability and molecular weight of UCPEA have been assessed by thermogravimetric analysis (TGA) and gel permeation chromatography (GPC), respectively. Furthermore, the corrosion behavior of UCPEA coatings on mild steel has been investigated by potentiodynamic polarization measurements in different corrosive environments (3.5 wt% HCl, 5 wt% NaCl, 3.5 wt% NaOH, and tap water) at room temperature and surface analysis by scanning electron microscope (SEM) and energy dispersive X-ray (EDX). The antibacterial activities of the UCPEA were tested against bacteria and fungi by agar disc diffusion method. The results of this study have revealed that UCPEA nanocomposite coatings exhibit good physicomechanical, anticorrosion and antimicrobial properties, which can be safely used up to 200°C.

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Preparation and properties of eco-friendly two pack PU coatings based on renewable source (sorbitol) and its property improvement by nano ZnO

Cited by 35 publications

References 10 publications

Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Synthesis, structure and properties of poly(ether-urethane)s synthesized using a tri-functional oxypropylated glycerol as a polyol

Development of Castor Oil Based Poly(urethane‐esteramide)/TiO₂ Nanocomposites as Anticorrosive and Antimicrobial Coatings

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Preparation and properties of eco-friendly two pack PU coatings based on renewable source (sorbitol) and its property improvement by nano ZnO

Cited by 35 publications

References 10 publications

Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Effect of silane modified nano ZnO on UV degradation of polyurethane coatings

Synthesis, structure and properties of poly(ether-urethane)s synthesized using a tri-functional oxypropylated glycerol as a polyol

Development of Castor Oil Based Poly(urethane‐esteramide)/TiO2 Nanocomposites as Anticorrosive and Antimicrobial Coatings

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Product

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Development of Castor Oil Based Poly(urethane‐esteramide)/TiO₂ Nanocomposites as Anticorrosive and Antimicrobial Coatings