Synthesis and characterization of carboxyl group-containing acrylic resin for powder coatings

Zhou, Zhengfa; Xu, Weibing; Fan, Ji‐xian; Ren, F. M.; Xu, Chunlei

doi:10.1016/j.porgcoat.2007.10.007

Cited by 17 publications

(6 citation statements)

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“…These properties result from the chemical structure of (meth)acrylic monomers. Polyacrylic resin can contain reactive hydroxyl-, carboxyl-or glycidyl groups [11]. Polyacrylates containing hydroxyl groups exhibit excellent weather durability, but their drawback is limited impact resistance.…”

Section: Introductionmentioning

confidence: 99%

Correlation between the Chemical Structure of (Meth)Acrylic Monomers and the Properties of Powder Clear Coatings Based on the Polyacrylate Resins

Pojnar,

Pilch-Pitera

2024

Materials

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This paper presents studies on the influence of the chemical structure of (meth)acrylic monomers on the properties of powder coatings based on polyacrylate resins. For this purpose, a wide range of monomers were selected—2-hydroxyethyl methacrylate (HEMA), methyl methacrylate (MMA), n-butyl acrylate (nBA), tert-butyl acrylate (tBA), dodecyl acrylate (DA), ethyl acrylate (EA) and benzyl acrylate (BAZ)—for the synthesis of the polyacrylate resin. The average molecular mass and molecular mass distribution of the synthesized resins were measured by gel permeation chromatography (GPC). The glass transition temperature (Tg) and viscosity of polyacrylate resins were determined by using differential scanning calorimetry (DSC) and a Brookfield viscometer. These parameters were necessary to obtain information about storage stability and behavior during the application of powder clear coatings. Additionally, DSC was also used to checked the course of the low-temperature curing reaction between the hydroxyl group contained in the polyacrylate resin and the blocked polyisocyanate group derived from a commercial agent such as Vestanat B 1358/100. The properties of the cured powder clear coatings were tested, such as: roughness, gloss, adhesion to the steel surface, hardness, cupping, scratch resistance, impact resistance and water contact angle. The best powder clear coating based on the polyacrylate resin L_HEMA/6MMA/0.5nBA/0.5DA was characterized as having good scratch resistance (550 g) and adhesion to the steel surface, a high water contact angle (93.53 deg.) and excellent cupping (13.38 mm). Moreover, its crosslinking density (CD) and its thermal stability was checked by using dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA).

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Section: Introductionmentioning

confidence: 99%

Correlation between the Chemical Structure of (Meth)Acrylic Monomers and the Properties of Powder Clear Coatings Based on the Polyacrylate Resins

Pojnar,

Pilch-Pitera

2024

Materials

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“…Acrylic resin has attracted widespread attention because of its good weather resistance, corrosion resistance, durability, low price, and abundance. [22,23]. Different kinds of acrylic resin can be freely designed as needed by using different monomers and ratios.…”

Section: Introductionmentioning

confidence: 99%

Effect of Acrylic Resin on the Protection Performance of Epoxy Coating for Magnesium Alloy

Liu,

Zhang,

Jiang

et al. 2024

Coatings

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The low toughness of epoxy resin can influence its shielding performance against a corrosive medium and strength of adhesion to metal surfaces. Extensive efforts have been made to modify epoxy resin. In this research, acrylic resin was synthesized by the solution method, and 1 wt.%, 2.5 wt.%, and 5 wt.% were added to epoxy resin (E44 brand) to prepare coatings on the surface of AZ31B magnesium alloy. The effects of acrylic resin on the mechanical and protective properties of epoxy coatings were investigated via experiments measuring impact resistance, flexibility, and adhesion as well as the electrochemical impedance technique. Compared with the pure epoxy coating, the adhesion between the coating and the substrate increases by 1.37 MPa after the addition of 2.5 wt.% acrylic resin. Meanwhile, the pencil hardness has a slight change from 5B to 6B, and the flexibility significantly improves. Therefore, the epoxy coating exhibits enhanced anticorrosive properties after the addition of 2.5 wt.% acrylic resin.

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“…It has the characteristics of no additional container, good heat storage capacity, high strength, no gas or liquid, and easy processing. 14,15 Polyurethane solid-solid PCMs are used in a wide range of applications including solar energy conversion, building energy saving, thermo-regulated textiles and aerospace. [16][17][18] However, PU PCMs generally have a low thermal conductivity in the range of 0.2 to 0.7 Wm À1 K À1 , which affects the heat transfer of the PCMs and reduces the energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The reaction of PEG and isocyanate to form polyurethane (PU) is very attractive, because PU is a representative of solid–solid PCMs. It has the characteristics of no additional container, good heat storage capacity, high strength, no gas or liquid, and easy processing 14,15 . Polyurethane solid–solid PCMs are used in a wide range of applications including solar energy conversion, building energy saving, thermo‐ regulated textiles and aerospace 16‐18 .…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide/polyurethane‐based composite solid–solid phase change materials with enhanced energy storage capacity and photothermal performance

Wang

Xie

et al. 2022

Intl J of Energy Research

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Summary The preparation of phase change materials (PCMs) with high energy storage, thermal conductivity, and photothermal conversion capability is essential for improving solar energy conversion and storage. In this study, graphene oxide (GO) was incorporated into polyurethane (PU) prepared from 4,4′‐diphenylmethane diissyanate (MDI) and polyethylene glycol (PEG). PU/GO composite PCMs exhibit enhanced thermal conductivity (0.972Wm−1 K−1) because the isocyanate in MDI can covalently graft with GO. The composite solid–solid PCMs has outstanding stability and thermal reliability. It can stay stable at 80°C for more than 15 min without leaking and has good thermoregulation regulation performance. The thermal energy storage density and photothermal conversion efficiency of PU/GO increase as the amount of PEG and GO increases. The PU/GO composite with 89 wt% PEG and 1.72 wt% GO has a phase change enthalpy of 150.7 J/g and a high photothermal conversion efficiency (95.3%). The composite PU/GO solid–solid PCMs have great potentials for effective energy storage and solar energy utilization.

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Synthesis and characterization of carboxyl group-containing acrylic resin for powder coatings

Cited by 17 publications

References 0 publications

Correlation between the Chemical Structure of (Meth)Acrylic Monomers and the Properties of Powder Clear Coatings Based on the Polyacrylate Resins

Correlation between the Chemical Structure of (Meth)Acrylic Monomers and the Properties of Powder Clear Coatings Based on the Polyacrylate Resins

Effect of Acrylic Resin on the Protection Performance of Epoxy Coating for Magnesium Alloy

Graphene oxide/polyurethane‐based composite solid–solid phase change materials with enhanced energy storage capacity and photothermal performance

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