Alkali-soluble resins (ASR) and acrylic blends: influence of ASR distribution on latex film and paint properties

Wu, Wenjun; Severtson, Steve J; Miller, Christopher

doi:10.1007/s11998-016-9792-6

Cited by 11 publications

(10 citation statements)

References 25 publications

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“…Through this drying process, the polymer particles dispersed in water are concentrated and will in principle coalesce into a solid water‐insoluble polymer film, as reported for similar ASR‐stabilized colloidal dispersions. [ 31–38 ] Water evaporation and protonation of the ASR were monitored at room temperature (RT ≈ 20 °C) using FTIR, by the decrease of the characteristic OH stretching peaks of water between 3440 and 3200 cm −1 (Figure 2B) and the COO − vibration peak (asymmetric COO − stretching) at 1546 cm −1 , as well as, the increase of the COOH vibration peak (C─O stretching) at 1158 cm −1 (Figure 2C). When the dispersion was dried at RT a polymer film was formed.…”

Section: Resultsmentioning

confidence: 99%

“…This indicates that the coating probably breaks upon folding and this might be due to the ASR reducing the flexibility of the coating. [35] Interestingly, the Cobb values measured are independent of the initial drying temperature, provided that a subsequent equilibrium period of 10 days was applied. If Cobb values were determined after 1 day of equilibration, however, significant differences between drying temperatures at room temperature and 40 °C and higher were observed.…”

Section: Water Barrier Properties Of the Resin-stabilized Waterborne ...mentioning

confidence: 97%

“…[18,[27][28][29][30] The film formation of ASR-stabilized dispersions has also been extensively researched. [31][32][33][34][35][36][37][38] One of the key findings is that the high glass transition temperature (T g ) of the ASR shell around the polymer core hinders the diffusion of polymer chains across the particle boundaries. Thus, increasing the annealing temperature close to the T g of the ASR improves film formation, which is expected to enhance the coatings' properties.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, increasing the annealing temperature close to the T g of the ASR improves film formation, which is expected to enhance the coatings' properties. Although several reports have been published on the optimization of ASR-based emulsion polymerizations [27,28,39,40] and film formation properties of ASR-supported dispersions, [31][32][33][34][35][36][37][38] the water barrier performance of ASR-stabilized waterborne coatings has not yet been addressed. Herein, we investigate the relation between the characteristics of an ASR-based waterborne coating and its water barrier performance.…”

Section: Introductionmentioning

confidence: 99%

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Water Barrier Properties of Resin‐Stabilized Waterborne Coatings for Paperboard

Bakker

Aarts

Esteves

et al. 2022

Macro Materials & Eng

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The replacement of plastic packaging by paperboard can significantly contribute to meeting sustainability goals in important application fields, such as in food packaging. The (water) barrier properties of paperboard‐based products need, however, to be improved. Waterborne coatings offer an environmentally friendly possibility to enhance these barrier properties, which in turn highly depend on the coating chemistry and film formation. Here, the relation between the characteristics of a waterborne coating and its water barrier performance is investigated. A waterborne polymer dispersion is prepared by emulsion polymerization, using an alkali‐soluble resin (ASR) as stabilizing agent. The ASR‐stabilized dispersion is applied as a coating on paperboard. During this application, the carboxylate groups of the ASR are converted to uncharged carboxylic acids. The coatings are characterized by Fourier‐transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), and scanning electron microscopy (SEM), and the water barrier properties are evaluated by dynamic vapor sorption (DVS) and the Cobb method. It is found that the water barrier performance is dominated by the carboxylate concentration remaining in the film, which is dependent on the moisture content. High drying temperatures improve particle deformation and polymer flow during coating formation, but do not influence the water barrier performance.

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Section: Resultsmentioning

confidence: 99%

Section: Water Barrier Properties Of the Resin-stabilized Waterborne ...mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Water Barrier Properties of Resin‐Stabilized Waterborne Coatings for Paperboard

Bakker

Aarts

Esteves

et al. 2022

Macro Materials & Eng

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“…HASE is an essential ingredient in water based inks as it provides the required rheology, pigment wetting, and resolubility, and prevents drying of ink in the cylinders [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of different surfactant monomers on alkali soluble emulsion polymer as a binder for water based printing inks

Saad¹,

Nasser

El‐Wahab

et al. 2018

Egypt. J. Chem.

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I N THIS study hydrophobicallyalkali-soluble emulsion HASE was prepared by using semi batch emulsion polymerization technique and evaluated as a binder for water based printing inks. HASEwas prepared by using vinyl acetate and methyl methacrylate as hydrophobic monomers in addition to methacrylic acid as a hydrophilic monomer. Besides, anionic and nonionic emulsifiers are used and sodium persulfate as initiator. Three types of surfactant monomers are prepared by esterification of an acid or an anhydride with nonionic surfactant and then, the chemical structures were characterized using FT-IR spectroscopy. Each surfactant monomer was used in different ratios to prepare the emulsion polymer. However a sample without using surfactant monomer was prepared for comparison. The prepared HASE was diluted and then neutralized by using mono ethanol amine till pH from 8 to 9. Neutralized polymer solution was mixed with pigment dispersion and then applied on paper sheet and color strength was measured. The best final polymer latex was characterized by FT-IR, DSC, and TEM. The prepared polymer showed advanced behavior compared with commercial binder in water based printing ink formulations. The results obtained revealed that uses of 5g of surfomer in polymerization of HASE enhance the color strength and gravimetric conversion and reduce the precipitate and viscosity.

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Synthesis and properties study of alkali soluble resin fortified polyacrylate latex

Qin,

Liu,

Zhang

et al. 2023

Polymers for Advanced Techs

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Latex films with high heat resistance tend to have higher Tg and the emulsion minimum film formation temperature (MFFT) is higher. Higher MFFT latexes do not produce continuous coherent films at low temperatures during application. Consequently, in order to solve the paradoxical problem of obtaining latex films with high Tg at low emulsion MFFT, a series of alkali soluble resin (ASR) stabilized latexes were synthesized in this study using a semi‐continuous pre‐emulsification polymerization process. The microstructure of latex particles, polymerization stability, composition and properties of latex films were characterized and tested by ATR‐FTIR, TEM, ZETA potential analyzer, DSC, orthomorphic metallographic microscope, and gloss tester. The results show that the addition of ASR reduces the content of coagulum during polymerization and significantly increases the number of latex particles. The high Tg ASR also induces the formation of a microphase separation structure with a dual glass transition in the latex film, which improves heat resistance. Additionally, hydroplasticized ASR reduces emulsion MFFT, improves latex film flatness, and enhances its glossiness. The introduction of ASR acts as a dual role of synergy with conventional ionic surfactants during synthesis to increase the stability of composite latexes and with polyacrylate (PA) in application to enhance its properties.

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Alkali-soluble resins (ASR) and acrylic blends: influence of ASR distribution on latex film and paint properties

Cited by 11 publications

References 25 publications

Water Barrier Properties of Resin‐Stabilized Waterborne Coatings for Paperboard

Water Barrier Properties of Resin‐Stabilized Waterborne Coatings for Paperboard

Effect of different surfactant monomers on alkali soluble emulsion polymer as a binder for water based printing inks

Synthesis and properties study of alkali soluble resin fortified polyacrylate latex

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