Synthesis and characterization of waterborne polyurethane dispersions with different chain extenders for potential application in waterborne ink

Liu, Liang; Li, Zhong; Lin, Xiaoqiong; Li, Yuanyuan; Xia, Zhengbin

doi:10.1016/j.cej.2014.05.044

Cited by 174 publications

(78 citation statements)

References 32 publications

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“…According to the previous report [3], the polyethylene glycol terephthalate (PET) film, coated with the WPU binder first and then with the polyurethane adhesive, was laminated with the casting polypropylene (CPP) film to obtain a laminated film, which was used to measure the T-peel strength. The peel strength value was the average pull value obtained during the peeling of the tape and the initial peel values were disregarded.…”

Section: Characterizationmentioning

confidence: 99%

“…In the field of the flexible packaging printing ink, WPUs can offer an efficient alternative to solvent-based polyurethane binders [3]. Because printing inks for food package need steaming and boiling resistance, aqueous polyurethane ink binders should have excellent adhesion strength, which depends on both the cohesive strength of WPUs and the interface adhesion strength between WPUs and substrates.…”

Section: Introductionmentioning

confidence: 99%

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Effects of crosslinking on adhesion behavior of waterborne polyurethane ink binder

Liu

Xia

et al. 2015

Progress in Organic Coatings

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Section: Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of crosslinking on adhesion behavior of waterborne polyurethane ink binder

Liu

Xia

et al. 2015

Progress in Organic Coatings

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“…Hence, by using these ionic groups or nonionic highly hydrophilic polyols as emulsifiers, stable waterborne dispersions constituted by PU or PUU nanoparticles can be obtained. When the dispersion is formed, the ionic groups of the particles, surrounded by the counterions forming the electrical double layer, as well as the nonionic hydrophilic domains are arranged in the surface forming the shell of the particle . Conversely, hydrophobic domains will be situated in the center of particles forming the core–shell of the particles …”

Section: Introductionmentioning

confidence: 99%

Influence of the addition of PEG into PCL‐based waterborne polyurethane‐urea dispersions and films properties

Vadillo

Larraza²,

Arbelaiz³

et al. 2019

J of Applied Polymer Sci

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In this work, segmented waterborne polyurethane‐urea (WBPUU) dispersions containing hydrophobic polycaprolactone (PCL) and hydrophilic poly(ethylene glycol) (PEG) in different molar ratios are synthesized and used for the subsequent preparation of films by casting. The molar ratio of PEG is gradually increased up to 0.20 in order to analyze the effect of low hydrophilic PEG content (from 1.7 to 7.1 wt %) on the properties of resulting dispersions and films. Regarding the dispersions, the addition of PEG results in an increase of the particle size, from 86 ± 1 in the case of pure PCL‐based system to 112 ± 15 for systems containing 7.1 wt % of PEG, as well as in the formation of a core–shell structure in the particles. Films show different behaviors depending on their PEG content. WBPUUs containing just PCL or very low content of PEG in the soft segment present higher stiffness. However, the addition of PEG in a content of 3.4 wt % or higher hinder the ability of the short‐range ordering of the hard segment, increasing the elongation at break from 842 ± 102 MPa for PCL‐based WBPUU to 1312 ± 84 MPa for the system with the highest PEG content. Systems with higher PEG content form nanoparticles with more segregated core–shell structures inducing to the film a higher hydrophilicity. Hence, the addition of PEG to a PCL‐based WBPUU allows to tune the properties of the resulting film increasing the range of application of these materials. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48847.

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“…[33][34][35] Drop Shape Analysis Drop shape analysis photos of MWPU and IWPU are displayed in Fig. As the urethane bonds that link the hard and soft segments have a small proportion in WPU, the weight loss of the first main decomposition of MWPU and IWPU is only 6.222% and 5.043%, respectively.…”

Section: Tg Analysismentioning

confidence: 99%

Preparation and characterization of waterborne polyurethane based on diphenylmethane diisocyanate‐50

Xiao

Zhao

et al. 2016

Adv Polym Technol

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A new waterborne polyurethane was prepared using diphenylmethane diisocyanate-50. Properties of this waterborne polyurethane and the conventional isophorone diisocyanante-based waterborne polyurethane were tested. It was found that diphenylmethane diisocyanate-50-based waterborne polyurethane showed better properties compared to isophorone diisocyanantebased waterborne polyurethane. The films of diphenylmethane diisocyanate-50-based waterborne polyurethane had higher tensile strength than of isophorone diisocyanante-based waterborne polyurethane; their water resistance and thermal stability were also improved. And they have higher surface hydrophobicity compared with those of isophorone diisocyanante-based waterborne polyurethane. It's believed that diphenylmethane diisocyanate-50-based waterborne polyurethane has excellent application performance in many industrial fields.

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Synthesis and characterization of waterborne polyurethane dispersions with different chain extenders for potential application in waterborne ink

Cited by 174 publications

References 32 publications

Effects of crosslinking on adhesion behavior of waterborne polyurethane ink binder

Effects of crosslinking on adhesion behavior of waterborne polyurethane ink binder

Influence of the addition of PEG into PCL‐based waterborne polyurethane‐urea dispersions and films properties

Preparation and characterization of waterborne polyurethane based on diphenylmethane diisocyanate‐50

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