Effects of carboxyl group on the ambient self‐crosslinkable polyacrylate latices

Guo, Tianying; Liu, Jinchao; Song, Mou-Dao; Zhang, Banghua

doi:10.1002/app.26165

Cited by 26 publications

(7 citation statements)

References 48 publications

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“…2). The DAAM-ADH crosslinking system was selected in preference to the many other crosslinking chemistries 29,30 because it promotes interfacial crosslinking between particles and proceeds with an increasing rate as water is lost from the film, 31,32 two factors that are key to the design principles introduced in this paper.…”

Section: Nanocomposite Design and Mechanical Propertiesmentioning

confidence: 99%

Deformation and adhesion of a periodic soft–soft nanocomposite designed with structured polymer colloid particles

et al. 2009

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Section: Nanocomposite Design and Mechanical Propertiesmentioning

confidence: 99%

Deformation and adhesion of a periodic soft–soft nanocomposite designed with structured polymer colloid particles

et al. 2009

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“…In these systems, the crosslinking reaction is usually triggered either by a drastic decrease in pH or by evaporation of water during film drying [27,28]. A particularly effective crosslinking mechanism used in the "two-pack in one pot" latex compositions is based on a reaction between carbonyl groups in diacetone acrylamide repeat units (DAAM), which are part of the polymer chain, and hydrazide groups from adipic acid dihydrazide (ADH) dissolved in the aqueous phase (see Figure 1) [29][30][31][32][33]. The unique feature of this reaction is rapid curing at room temperature which further increases the barrier properties, mechanical properties, and water-repellent properties of coating films [31].…”

Section: Introductionmentioning

confidence: 99%

Influence of Metal Oxide Nanoparticles as Antimicrobial Additives Embedded in Waterborne Coating Binders Based on Self-Crosslinking Acrylic Latex

et al. 2022

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This article deals with the simple preparation of environmentally friendly acrylic latex binders, which are functionalized with nanoparticles of metal oxides, namely MgO, ZnO, La2O3 and combinations of MgO and ZnO, serving as functional components to achieve antimicrobial properties, but also to improve physical–mechanical properties and chemical resilience. The incorporation of uncoated powder nanoparticles was performed during the synthesis, using the two-stage semi-continuous emulsion radical polymerization technique, to obtain latexes containing 0.5–1.3% nanoparticles relative to the polymer content. Changes in latex performance due to nanoparticles were compared from the point of view of the type and concentration of metal oxide nanoparticles in latex. The results of the tests showed that all types of nanoparticles showed very promising properties, while with increasing concentration of nanoparticles there was an improvement in properties. The nanoparticles in latex provided interfacially crosslinked transparent smooth coating films with high gloss and good physical–mechanical properties. Latexes containing the highest concentration of nanoparticles provided coatings with significant antimicrobial activity against all tested bacterial and fungal strains, but also in-can preservative stability of liquid latex. Furthermore, the coatings were resistant to solvents, and in addition, latexes with MgO nanoparticles showed a significant decrease in the minimum film-forming temperature, and latex with a concentration of about 1.3% MgO did not show any flash corrosion under the coating film cast on a steel substrate. The latexes containing MgO and La2O3 nanoparticles provided coatings that were very resistant to water bleaching.

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“…Among them, ketone-hydrazine crosslinking reaction is the most widely used one because of its low crosslinking temperature, which can occur at relatively low temperature or even at room temperature with fast crosslinking rate. [12][13][14][15][16] Pi et al 17 prepared a low-temperature self-crosslinkable acrylic latex. They studied the effect on properties of latexes and latex films of DAAM content, n(ADH)/n (DAAM) ratio, curing temperature, and curing time.…”

Section: Introductionmentioning

confidence: 99%

Study on ethanol resistance stability and adhesion properties of polyacrylate latex for PE or BOPP film inks

Chen

et al. 2021

J of Applied Polymer Sci

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Waterborne inks based on the polyacrylate latex typically suffer from poor ethanol resistance and low adhesion on the PE or BOPP films. In this contribution, self-crosslinkable polyacrylate latex binders with core-shell structure and diacetone acrylamide (DAAM)/adipic acid dihydrazide (ADH) crosslinking agent for the application in the PE (polyethylene) or BOPP (Biaxially oriented polypropylene) film inks were synthesized. The effect of DAAM distribution in latex particles on ethanol resistance stability and the adhesion on the PE and BOPP thin films of the latexes and the corresponding inks was studied. Also, two functional monomers, isobornyl acrylate (IBOA) and acrylamide (AM) were introduced into the polyacrylate, respectively, to investigate their effect on the adhesion of the latexes and the inks on the PE and BOPP films. The results demonstrated that the more DAAM distributed in the core layer of the latex particles, the better the ethanol resistance, but the weaker the initial adhesion on the BOPP and PE thin films and the lower crosslinking degree of the latexes and the relative inks. However, the difference in cross-linking degree and adhesion between the latex film with DAAM located within the shell part and that of DAAM located in the shell part keeps reducing with the prolongation of film-forming time. Thus, when half of the DAAM is in the shell layer of latex particles, the latexes and the corresponding inks possess a balanced comprehensive property. The introduction of IBOA into polyacrylate is beneficial for improving the adhesion on both the BOPP and PE films of the inks due to the reduced surface tension of the latex. However, AM is only effective on the PE film, which may be due to the structural similarity of AM to erucate amide and oleate amide contained in the PE film, improving interaction between ink and the PE film.

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Effects of carboxyl group on the ambient self‐crosslinkable polyacrylate latices

Cited by 26 publications

References 48 publications

Deformation and adhesion of a periodic soft–soft nanocomposite designed with structured polymer colloid particles

Deformation and adhesion of a periodic soft–soft nanocomposite designed with structured polymer colloid particles

Influence of Metal Oxide Nanoparticles as Antimicrobial Additives Embedded in Waterborne Coating Binders Based on Self-Crosslinking Acrylic Latex

Study on ethanol resistance stability and adhesion properties of polyacrylate latex for PE or BOPP film inks

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