Development of coalescents for paints and varnishes based on ionic liquids – the products of diethanolamine and inorganic acids interaction

This paper reports the synthesis of ionic liquids through the interaction between diethanolamine and orthophosphate and boric acids in order to establish the possibility of replacing volatile coalescents in a formulation for paints and varnishes with ionogenic compounds. The results from studying the influence of polymeric coalescents based on ionic liquids on the rheological properties of water-dispersion paints and varnishes of different nature are presented. It has been established that the synthesized coalescents could be used to modify the properties of paints and varnishes based on polyurethane and styrene-acrylic aqueous dispersions. It has been shown that the product of the interaction between diethanolamine and boric acid in aqueous solutions forms an ionogenic complex compound with a unipolar conductivity in terms of ОН─ ions. It was also established that when introduced to the formulation of water-dispersion paints and varnishes, the solutions of modifiers produce a diluting action. The influence of ionic liquids on the process of film formation of aqueous dispersions of polymers and pigmented paints and varnishes based on them was investigated. It was established that the synthesized ionogenic compounds are not inferior, in terms of their effectiveness, to the widespread conventional industrial coalescents of the Texanol→ type. Therefore, there is reason to assert the possibility of replacing the industrial coalescent Texanol→ in the formulation of pigmented water-dispersion paints and varnishes based on styrene-acrylic and polyurethane dispersions with fundamentally new synthesized ionogenic modifiers. Thus, the coatings with a coalescent based on ion liquid of diethanolamine borate have a higher level of conditional hardness, which exceeds by 17 % the hardness index of the paint made on the basis of the conventional Texanol→ type coalescent, without changing its decorative properties, such as color and shine

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Cover Picture: Metal-Free Dehydration of Glucose to 5-(Hydroxymethyl)furfural in Ionic Liquids with Boric Acid as a Promoter (Chem. Eur. J. 5/2011)

Chemistry - A European Journal ◽

10.1002/chem.201190018 ◽

2011 ◽

Vol 17 (5) ◽

pp. 1369-1369 ◽

Cited By ~ 2

Author(s):

Tim Ståhlberg ◽

Sergio Rodriguez-Rodriguez ◽

Peter Fristrup ◽

Anders Riisager

Keyword(s):

Ionic Liquids ◽

Boric Acid ◽

Metal Free ◽

Hydroxymethyl Furfural

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Lubricant film formation properties of alkyl imidazolium tetrafluoroborate and hexafluorophosphate ionic liquids

Tribology International ◽

10.1016/j.triboint.2010.03.011 ◽

2010 ◽

Vol 43 (10) ◽

pp. 1908-1916 ◽

Cited By ~ 32

Author(s):

H. Arora ◽

P.M. Cann

Keyword(s):

Ionic Liquids ◽

Film Formation ◽

Lubricant Film

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Self-organization of poly(N-isopropylacrylamide)-carrying microspheres into two-dimensional colloidal thin films

e-Polymers ◽

10.1515/epoly.2005.5.1.804 ◽

2005 ◽

Vol 5 (1) ◽

Cited By ~ 1

Author(s):

Sakiko Tsuji ◽

Haruma Kawaguchi

Keyword(s):

Thin Films ◽

Film Formation ◽

Self Organization ◽

Two Dimensional ◽

Simple Method ◽

Aqueous Dispersions ◽

Graft Chain

AbstractA simple method to fabricate colloidal thin films with periodical structures was investigated. In this study, poly(N-isopropylacrylamide) (PNIPAM) microgel and polystyrene particles with PNIPAM chains on the surface (hairy particles) are used as components. Aqueous dispersions of these PNIPAM-carrying particles spontaneously form monolayers as water evaporates. After the medium is completely evaporated, periodical structures remain on the substrate. This paper focuses on the effect of graft chain density of the hairy particles on film formation.

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Novel waterborne UV-crosslinkable thiol–ene polyurethane dispersions: Synthesis and film formation

Polymer ◽

10.1016/j.polymer.2005.06.075 ◽

2005 ◽

Vol 46 (19) ◽

pp. 8162-8168 ◽

Cited By ~ 38

Author(s):

Daniel B. Otts ◽

Erik Heidenreich ◽

Marek W. Urban

Keyword(s):

Film Formation ◽

Polyurethane Dispersions

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Water-immiscible bioinert coatings and film formation from aqueous dispersions of poly(2-methoxyethyl acrylate) microspheres

Colloids and Surfaces B Biointerfaces ◽

10.1016/j.colsurfb.2017.04.001 ◽

2017 ◽

Vol 155 ◽

pp. 166-172 ◽

Cited By ~ 10

Author(s):

Takuma Kureha ◽

Seina Hiroshige ◽

Shusuke Matsui ◽

Daisuke Suzuki

Keyword(s):

Film Formation ◽

Aqueous Dispersions

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INQUIRY INTO THE POTENTIAL USE OF IONIC LIQUIDS INSTEAD OF INORGANIC ACIDS IN HYDROTHERMAL HYDROLYSIS OF MACROALGAE

10.21698/simi.2018.fp05 ◽

2018 ◽

Author(s):

Konstantza Tonova ◽

◽

Madlena Lazarova

Keyword(s):

Ionic Liquids ◽

Inorganic Acids ◽

Hydrolysis Of ◽

Potential Use

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DIRECTED REGULATION OF THE STRUCTURAL AND RHEOLOGICAL PROPERTIES OF HEAT-INSULATING ACRYLIC AQUEOUS DISPERSIONS USING THE COMBINED USE OF HYDROPHILIC AND HYDROPHOBIC SILICATE FILLERS

Integrated Technologies and Energy Saving ◽

10.20998/2078-5364.2021.2.02 ◽

2021 ◽

pp. 11-21

Author(s):

N. Saienko ◽

R. Bikov ◽

A. Skripinets ◽

D. Demidov ◽

A. Kariev ◽

...

Keyword(s):

Activation Energy ◽

Response Function ◽

Substrate Surface ◽

Polymer Coatings ◽

Shear Stresses ◽

Flow Activation Energy ◽

Aqueous Dispersions ◽

Water Dispersion ◽

Combined Use ◽

Second Degree

The formation technology and performance characteristics of coatings based on aqueous dispersions are largely determined by the properties of the initial film-forming materials, which should ensure uniform thin-layer distribution on the substrate surface and the formation of coatings with the required technological complex of properties. Among them, due to their functional properties and relatively low cost, the most widespread are water-dispersion polymer coatings based on acrylic film-formers. In this paper, mathematical models of the structural and rheological dependences of heat-insulating acrylic aqueous dispersions are considered depending on the combined content of hydrophilic-hydrophobic fillers. To describe these dependencies, it is advisable to use equations of the second degree. According to the mathematical theory of experiment, the second-order orthogonal central compositional design makes it possible to predict the behavior of the response function. Carrying out an experiment in accordance with this plan makes it possible to establish the analytical dependence of the response function on the corresponding factors in the form of a polynomial equation of the second degree. The main response functions were: conditionally static yield stress, viscosity at the minimum rate of onset of fracture (initial effective viscosity), viscosity of the “destroyed” structure according to the Newtonian nature of the flow, activation energy of viscous flow at minimum, average and maximum shear rates. On the basis of the established dependences, the optimal ratios of hydrophobized aerosil and aluminosilicate microspheres were selected, the combined use of which makes it possible to reduce shear stresses to create a homogeneous aqueous acrylic dispersion, to predict the activation energy at various technological stages of preparation and application of heat-insulating coatings. The established results made it possible to create a hydrophilic-hydrophobic aqueous acrylic dispersion, which, without the use of surfactants, makes it possible to simplify the production technology of heat-insulating water-dispersion coatings, namely, to exclude the stage of pretreatment of fillers, to reduce the rotation speed of the frame mixer, and also to increase the kinetic stability of the finished dispersion.

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