Preparation and properties of a novel low crystallinity cross-linked network waterborne polyurethane for water-based ink

Zhu, Jiantao; Wu, Zhimin; Xiong, Di; Pan, Langsheng; Liu, Yuejin

doi:10.1016/j.porgcoat.2019.04.033

Cited by 47 publications

(26 citation statements)

References 41 publications

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“…DBTDA (800 ppm) and acetone were fed together with TEA and BD (Liorente et al , 2016). The TEA was added to dispersion to neutralize carboxylic acid with 1:1 molar ratio of DMPA to TEA (Zhu et al , 2019). The synthesis process was conducted at 60 ° C with a mixing speed of 250 rpm.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of ultraviolet (UV)-curable water-borne polyurethane acrylate binders and comparison of their performance for pigment printing on synthetic leather

Baysal

Keleş

Kalav

et al. 2020

IJCST

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PurposeIn this study, it is aimed to synthesize ultraviolet (UV)-curable water-borne polyurethane acrylate (WPUA) binders using different types of polyols (poly (propylene glycol), PPG1000 and PPG2000 and poly (ethylene glycol), PEG1000 and PEG2000) at different molecular weights, DMPA (2,2-bis(hydroxymethyl) propionic acid) at different amounts and isophorone diisocyanate (IPDI) and use for pigment printing on synthetic leather.Design/methodology/approachUV-cured films were characterized by Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimeter (DSC). The effect of binder structure on printing performance was determined with hardness, crock fastness, abrasion resistance and color measurements.FindingsThe highest abrasion resistance (60,000 cycles) and crock fastness values (dry crock and wet crock: 3/4) were obtained with binder PEG-C synthesized with PEG2000 and lower DMPA amount of 4.89 wt%; however, PEG-C binder showed lower hardness values. Due to lower urethane groups in PEG-C binder, more flexible films were obtained which imparted good adhesion property to printing film. Synthesized binders provided lower crock fastness and abrasion resistance properties than commercial WPUA binder.Originality/valuePigmented formulations including UV-curable water-borne synthesized PUA binder were developed and for the first time applied onto synthetic leather using screen printing method. Within this context, a new environmentally friendly printing method was proposed in this study including binder synthesis in the preparation of printing formulations.

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Section: Methodsmentioning

confidence: 99%

Synthesis of ultraviolet (UV)-curable water-borne polyurethane acrylate binders and comparison of their performance for pigment printing on synthetic leather

Baysal

Keleş

Kalav

et al. 2020

IJCST

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“…Polyurethanes are mostly not hydrophilic enough to result in stable aqueous dispersions. The most preferred way to increase their affinity for water is to introduce an ionic group into the polymer structure during the interaction between the isocyanate‐containing agent and the so‐called “hydrophilic agent.” One of the most common hydrophilic agents nowadays is 2,2‐bis(hydroxymethyl)propionic acid (dimethylolpropionic acid, DMPA) 19‐21 …”

Section: Introductionmentioning

confidence: 99%

The investigation of triethylammonium carboxylates influence on the kinetics of urethane formation processing during waterborne polyurethane synthesis

Karpov

Dzhalmukhanova

Chernyayev

et al. 2021

Polymers for Advanced Techs

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Kinetic features of the catalytic reaction of isophorone diisocyanate with triethylammonium salt of 2,2‐bis(hydroxymethyl)propionic acid, a hydrophilic agent for obtaining waterborne polyurethane, also with the model 1,1‐bis(hydroxymethyl)ethane and with physical mixture 1,1‐bis(hydroxymethyl)ethane‐triethylamine were studied using IR spectroscopy. The observed rate constant ratios of isophorone diisocyanate aliphatic and cycloaliphatic isocyanate groups interaction with the studied compounds were established, and the catalysis efficiency was evaluated. It was shown that a synergic effect is observed in catalytic systems based on dibutyltin dilaurate and triethylammonium carboxylates with regard to the reactivity of isophorone diisocyanate aliphatic group alone in the urethane formation reaction.

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“…In addition, PU properties highly depend on the chemical cross-linking of the polymer chains. It is regarded that moderate cross-linking can positively influence these performances [ 16 , 17 ]. Previous research has proved that the thermal stability of cross-linked polyurethanes is higher than that of the linear one [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

A Fluorescent Polyurethane with Covalently Cross-Linked Rhodamine Derivatives

et al. 2020

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Rhodamine derivatives (RDs) with three reactive hydrogens were synthesized and well characterized by Fourier transform infra-red spectroscopy (FTIR), 1H nuclear magnetic resonance (1H NMR) and electrospray ionization mass spectra (ESI mass). Then, the obtained RD was covalently cross-linked into polyurethane (PU) matrix through chemical linkages to fabricate a network structure, and the fluorescent properties, mechanical properties, thermal stability, and emulsion particle size were systematically investigated. Results demonstrate that PU-RD maintains initial fluorescent properties and emits desirable yellow fluorescence under ultraviolet irradiation. Moreover, compared with linear PU without fluorescers, PU-RD shows clearly improved mechanical properties and thermal stability, on account of the formed network structures.

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Preparation and properties of a novel low crystallinity cross-linked network waterborne polyurethane for water-based ink

Cited by 47 publications

References 41 publications

Synthesis of ultraviolet (UV)-curable water-borne polyurethane acrylate binders and comparison of their performance for pigment printing on synthetic leather

Synthesis of ultraviolet (UV)-curable water-borne polyurethane acrylate binders and comparison of their performance for pigment printing on synthetic leather

The investigation of triethylammonium carboxylates influence on the kinetics of urethane formation processing during waterborne polyurethane synthesis

A Fluorescent Polyurethane with Covalently Cross-Linked Rhodamine Derivatives

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