Newly UV-curable polyurethane coatings prepared by multifunctional thiol- and ene-terminated polyurethane aqueous dispersions mixtures: Preparation and characterization

Yang, Zhenglong; Wicks, Douglas A.; Hoyle, Charles E.; Pu, Hongting; Yuan, Junjie; Wan, Decheng; Liu, Yongsheng

doi:10.1016/j.polymer.2008.12.018

Cited by 79 publications

(34 citation statements)

References 22 publications

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“…That is to say, when more acrylic components are introduced, the fusion of particles results in larger particles. At the same solid content, the PAD with larger particle size has a smaller 'effective' volume of the dispersed phase (14). Thus, according to Money equation, the viscosity of the PAT-2 dispersion with larger particle size is lower which is in accordance with the results illustrated in Table 2.…”

Section: Particle Size and Viscositysupporting

confidence: 85%

A Novel Route to Emulsifier-free, Waterborne Hydroxyl Functional Polyacrylate with Low VOC Level and its Application in 2K-WPU Coatings

Xu¹,

Qian²,

Hu³

et al. 2013

Journal of Macromolecular Science, Part A

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A novel two step polymerization method which combined the advantages of both solution polymerization and emulsion polymerization was proposed for emulsifier-free, waterborne hydroxyl functional polyacrylate with low VOC level. The obtained resin provided a good appearance and moderate viscosity. The structure of resins was characterized by fourier transfer infrared (FTIR), dynamic light scattering (DLS), differential scanning calorimeter (DSC) and gel permeation chromatography (GPC). The hydroxyl polyacrylate dispersion (PAD) named as PAT-2 was cured with hydrophilically modified polyisocyanate curing agent (Bayhydur XP 2655) to obtain two component waterborne polyurethane (2K-WPU) coatings. FTIR was employed to investigate the structure of the cured coatings. The 2K-WPU coatings showed high gloss and hardness, good adhesion, excellent impact resistance and superior water and chemical resistance, which denotes wide application on industrial anti-corrosive coatings fields.

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Section: Particle Size and Viscositysupporting

confidence: 85%

A Novel Route to Emulsifier-free, Waterborne Hydroxyl Functional Polyacrylate with Low VOC Level and its Application in 2K-WPU Coatings

Xu¹,

Qian²,

Hu³

et al. 2013

Journal of Macromolecular Science, Part A

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“…Generally, UV curable coating consists of multifunctional monomer, reactive diluent, photoinitiator and other auxiliaries. Most of the compositions can participate in the formation of solid film, thus it is regarded as a green product with great potential for further development [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

UV curable EA-Si hybrid coatings prepared by combination of radical and cationic photopolymerization

Liu

Wang

Xue

et al. 2015

Progress in Organic Coatings

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“…Photo-DSC has been extensively applied to monitor the UV-curing reactions. 6,7 However, it is impossible to follow reactions which occur in <1 min due to the rather long response time of a calorimeter device and a low thermal conductivity of most of the samples under the common irradiation conditions. 8,9 Fourier transform infrared spectroscopy (FTIR) has a wide range of applications in structural identification and the monitoring of reactions without such limitations.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, photopolymerization kinetics, and thermal properties of UV-curable waterborne hyperbranched polyurethane acrylate dispersions

Yin

Zeng

et al. 2011

J Coat Technol Res

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A series of UV-curable waterborne hyperbranched polyurethane acrylate dispersions (WHBPUADs) were prepared via a three-step procedure based on isophorone diisocyanate (IPDI), hyperbranched polyester (HBP), maleic anhydride (MA), and hydroxy-ethyl acrylate (HEA). The structure of WHBPUADs was characterized by Fourier transform infrared spectroscopy (FTIR) and 1 H nuclear magnetic resonance spectroscopy ( 1 H NMR). FTIR was also applied to research the effect of double bond concentration on the kinetics of photopolymerization. The heat resistance of the cured films was characterized by thermogravimetric analysis (TGA), and their mechanical properties were also measured. The results showed that the double bond conversion (s) and photopolymerization rate (R p ) were affected by the concentration of double bond and viscosity of WHBPUADs. The UV-curable systems with higher double bond concentration and lower viscosity led to higher s and R p . The maximum s and R p reached 93% and 71 mmol g À1 s À1 , respectively. The WHBPUADs films possessed better heat resistance and mechanical properties, and with the increase of crosslink density, the heat resistance and hardnesses were further improved.

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Newly UV-curable polyurethane coatings prepared by multifunctional thiol- and ene-terminated polyurethane aqueous dispersions mixtures: Preparation and characterization

Cited by 79 publications

References 22 publications

A Novel Route to Emulsifier-free, Waterborne Hydroxyl Functional Polyacrylate with Low VOC Level and its Application in 2K-WPU Coatings

A Novel Route to Emulsifier-free, Waterborne Hydroxyl Functional Polyacrylate with Low VOC Level and its Application in 2K-WPU Coatings

UV curable EA-Si hybrid coatings prepared by combination of radical and cationic photopolymerization

Synthesis, photopolymerization kinetics, and thermal properties of UV-curable waterborne hyperbranched polyurethane acrylate dispersions

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