Synthesis and characterization of waterborne UV-curable polyurethane modified with side-chain triethoxysilane and colloidal silica

Zhang, Sheng; Chen, Zidong; Guo, Meng; Bai, Huiyu; Liu, Xiaoya

doi:10.1016/j.colsurfa.2014.12.004

Cited by 37 publications

(18 citation statements)

References 31 publications

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“…Coatings 2018, 8,9 8 vibration band appears at 1256 cm −1 . In addition, the band at 1049 cm −1 and 1120 cm −1 is also found in Figure 4 corresponding to C-O stretching.…”

Section: Resultsmentioning

confidence: 98%

“…But the evaporation of water needs a lot of heat energy, and the cure rate of the waterborne coating is slow [7]. Waterborne UV-curing coatings on the wood materials (WUVCW) combine the advantages of UV curing and waterborne coating, which not only eliminates the pollution caused by VOC, but it also has the characteristics of rapid solidification and energy saving [8].…”

Section: Introductionmentioning

confidence: 99%

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Synergistic Effect of Addition of Fillers on Properties of Interior Waterborne UV-Curing Wood Coatings

et al. 2017

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A waterborne ultraviolet (UV)-curing coating was prepared on the surface of wood materials with modification of talcum powder and calcium carbonate (CaCO 3 ). When the waterborne UV-curing coatings on the surface of wood materials (WUVCW) was radiated for 1 min by UV (λ = 365 nm) and dried at 40 • C for 10 min, it showed good hardness, adhesion, and impact strength, with controlling the talcum content of 2.0% and CaCO 3 content of 1.0%, respectively. When the content of talcum powder was higher than 2%, the mechanical properties and gloss of the WUVCW decreased, and when the talcum powder of WUVCW increase to more than 5%, a matte surface appeared after curing. When CaCO 3 and talcum powder were present at the same time, the mechanical properties of WUVCW were better than those of only CaCO 3 or talcum powder.it is necessary to modify the WUVCW in order to improve the mechanical properties and reduce the gloss [14].Wu et al. [15] used the antimony doped tin oxide to UV curable waterborne poly(urethane-acrylate) for the modification of thermal insulation by sol-gel process. Liao et al. [16] used carbon nitride to reinforce the mechanical and thermal properties of UV-curable waterborne polyurethane acrylate coatings. Rahman et al. [17] studied nanoferrite on the anticorrosive property of waterborne epoxy-acrylate coatings. Lv et al. [18] used silica on the thermochromics property of waterborne UV-curable polyurethane acrylate nanocomposites coatings. Talcum powder has an advantage of low price, stability of the physical and chemical properties, tasteless, and non-toxic [19]. The particles have the typical scaly, which can improve the heat resistance and bending resistance of the material. Talcum appears inert in most chemical reagents, and does not break down when contacted with acid [20]. Talcum has the low thermal conductivity and high thermal shock resistance, and still not decomposed when heated to 900 • C [21]. The excellent properties of talcum powder make it the good filler and can be used as an additive for coatings. Calcium carbonate (CaCO 3 ) is the white powder that is non-toxic, tasteless, none irritating, cheap and rich in resources, and has been widely used in plastic and ink fields [22].The manuscript presented an interesting research on the optimization of the wood coatings by modifying the coating's composition in order to maximize the output quality. Used coating components are somewhat more environmentally friendly than the ones that are commonly used. In this paper, talcum powder and CaCO 3 were combined to modify the WUVCW, and compared with single use of CaCO 3 or talcum. Heating with UV curing is used in combination during this technology. The orthogonal experiment was used to select and optimize the parameters of synergistic effect of talcum and CaCO 3 . The purpose of the synergistic modification is to enhance the mechanical properties and to reduce the gloss of the WUVCW.

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“…Coatings 2018, 8,9 8 vibration band appears at 1256 cm −1 . In addition, the band at 1049 cm −1 and 1120 cm −1 is also found in Figure 4 corresponding to C-O stretching.…”

Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Addition of Fillers on Properties of Interior Waterborne UV-Curing Wood Coatings

et al. 2017

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“…The silicon segments of the polyurethane are introduced by reaction of end group containing active hydrogen of higher molecular weight of methyl silicone and polyurethane prepolymer remaining isocyanate, so this organosilicon modification can effectively contain silicon segments that endow the polymer performance, but it would have been produced different degree of phase separation in the molecular chain segment size. [21][22][23][24][25] The enhancement of surface properties of polyurethane can be achieved through the physical method of nanosilicon particles composite in polyurethane surface. 26,27 Therefore, in our experiment, copolymerization was adopted to introduce dimethylsiloxane and fluorinated segment into the polyurethane chains.…”

Section: Introductionmentioning

confidence: 99%

Study on waterborne polyurethanes based on poly(dimethyl siloxane) and perfluorinated polyether

Yang

Zhou

2015

Macromol. Res.

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Methylsiloxane and fluorinated segments were introduced into the polymer backbone of polyurethane by direct reaction of isocyanate with dialcohol terminated perfluoropolyether (E10-H) and poly(dimethyl siloxane) (PDMS). The polyurethane structure was revealed by Fourier transform infrared spectrometer in ATR mode and Xray photoelectron spectroscope. It was found that the silicon and fluorine moieties easily migrated to the surface of material in film-forming process due to their lower energy, so the water contact angle on membrane surface was greatly enhanced (maximum 100.1º), and the hydrophobic property of material was improved. Different degree of phase separation was observed by scanning electron microscope. Increment of PDMS or E10-H content caused the phase separation obviously, but section of PDMS and E10-H modified polyurethane showed that phase separation reduced. The linear dynamic viscoelastic measurements indicated that the dynamic storage modulus of all samples increased with the increment of frequency, and PDMS modified WPU's grew fastest. The slope of G' vs. G'' showed a decrement, so each sample had a shear thinning behavior. The perfluoropolyether oil was to reduce viscosity of the system.

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“…Aiming to increase the incorporated content of silane, which should be uniformly distributed on the backbone of WPU, we make another attempt to use silane as chain extender. New alkoxysilanes containing dihydroxyl or diamino functional groups have been seen in recent reports . Notable achievements have been made on the different covalent manners of silanes on the main chain of WPU.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of waterborne polyurethane containing alkoxysilane side groups: Study on spacer linkages

Qiu

et al. 2018

J of Applied Polymer Sci

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Environmentally friendly waterborne polyurethanes (WPUs) modified by moisture‐curable alkoxysilane have been much studied nowadays. In this work, a new diol‐bearing pendant urea‐propyl trimethoxysilane (APD‐Si) was synthesized and used as the chain extender in the preparation of a silicone‐modified WPU dispersion. Both the formation of hybrid networks based on the condensation of trimethoxysilane groups and the enhanced microphase separation of the hard and soft segments have been found to rely on the strong hydrogen‐bonding capability of the urea‐containing spacers, which link the alkoxysilane groups with the backbone of WPU. Because of the synergism of chemically bonded silsesquioxane and physically hydrogen bonded hard domains serving as crosslinking points, the mechanical properties of the hybrid films of WPU are improved, especially the modulus and yield strength. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46628.

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Synthesis and characterization of waterborne UV-curable polyurethane modified with side-chain triethoxysilane and colloidal silica

Cited by 37 publications

References 31 publications

Synergistic Effect of Addition of Fillers on Properties of Interior Waterborne UV-Curing Wood Coatings

Synergistic Effect of Addition of Fillers on Properties of Interior Waterborne UV-Curing Wood Coatings

Study on waterborne polyurethanes based on poly(dimethyl siloxane) and perfluorinated polyether

Synthesis of waterborne polyurethane containing alkoxysilane side groups: Study on spacer linkages

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