Synthesis and characterization of emulsion‐type curing agent of water‐borne epoxy resin

Sun, Haixiang; Ni, Weiliang; Yuan, Bingbing; Wang, Tiantian; Liu, Yunqi; Wang, Lintong

doi:10.1002/app.39485

Cited by 20 publications

(15 citation statements)

References 15 publications

(12 reference statements)

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“…Moreover, the mean particle size of the emulsion tends to increase. Similar results were also reported by Sun et al . in the case of preparing an emulsion‐type curing agent.…”

Section: Resultssupporting

confidence: 90%

“…However, small molecular amine curing agent easily absorbs moisture and carbon dioxide in the air, which results in bleaching, adhesion falling, high brittleness of the cured film. Recently, more attention has been paid to the modified amine epoxy curing agent to overcome the above defects . A waterborne curing agent based on liquid epoxy resin and polyamine was prepared by Waler, but the performance of cured film was not satisfactory due to the poor intermiscibility between the curing agent and epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of a self‐emulsifiable waterborne epoxy curing agent based on glycidyl tertiary carboxylic ester and its cure characteristics

Zhang

Huang

Fang

et al. 2016

J of Applied Polymer Sci

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A novel self-emulsifiable waterborne amine-terminated curing agent for epoxy resin based on glycidyl tertiary carboxylic ester (GTCE) was synthesized through three steps of addition reaction, capping reaction, and salification reaction of triethylene tetramine (TETA) and liquid epoxy resin (E-44). The curing agent with good emulsifying and curing properties was gradually obtained under condition of the molar ratio of TETA: E-44 as 2.2: 1 at 65 8C for 4 h, 100% primary amine capped with GTCE at 70 8C for 3 h, and 20% salifiable rate with glacial acetic acid. The curing agent was characterized by Fourier transform-infrared spectroscopy (FT-IR). The curing behavior of the E-44/GTCE-TETA-E-44 system was studied with differential scanning calorimetry (DSC) and FT-IR. Results showed that the optimal mass ratio for E-44/GTCE-TETA-E-44 system was 3 to 1, and the curing agent showed a relatively lower curing temperature. The cured film prepared by the self-emulsifiable curing agent and epoxy resin under the optimal mass ratio displayed good thermal property, hardness, toughness, adhesion, and corrosion resistance. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44246.

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“…Moreover, the mean particle size of the emulsion tends to increase. Similar results were also reported by Sun et al . in the case of preparing an emulsion‐type curing agent.…”

Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Synthesis of a self‐emulsifiable waterborne epoxy curing agent based on glycidyl tertiary carboxylic ester and its cure characteristics

Zhang

Huang

Fang

et al. 2016

J of Applied Polymer Sci

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“…Figure 1 shows the FTIR spectra of epoxy resin, ET3, ET6, and ET9 coatings. The absorption peak located at 913 cm −1 could be assigned to the stretching vibration of the saturated epoxy ring; the one at 1409 cm −1 represents O-H bending vibrations in epoxy resin [ 6 , 10 ]. In the spectrum of the coating without the agent, both peaks could be observed clearly, which meant the cross-linking degree of resin was at a low level.…”

Section: Resultsmentioning

confidence: 99%

“…They found that hardness, water resistance, and adhesion of the cured film were improved significantly [ 9 ]. Sun et al synthesized a self-emulsified waterborne epoxy cross-linking agent of nonionic type using triethylene tetramine (TETA), and they found that epoxy resin film cured by the agent under ambient conditions showed good properties even at high staying temperature [ 10 ]. Although films cross-linked through ring-open mode usually showed good water resistance and corrosion resistance within a short period, the durability of the performance needs to be improved urgently.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of Waterborne Epoxy Resin Coating Cross-Linked by Modified Tetrabutyl Titanate

Chen

Huang

et al. 2020

Scanning

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The development of waterborne coating is essentially important for environmental protection, and cross-linking agent is of great significance for ensuring corrosion resistance of the coating. In this work, tetrabutyl titanate was modified by ethylene glycol and tris(2-hydroxyethyl) amine and used for the solidification of waterborne acrylic-epoxy resin. Fourier-transform infrared spectroscopy (FTIR) analysis revealed that the agent reacted with OH groups first to cross-link the resin preliminarily, and then, when the amount of agent was further increased, the amino groups opened epoxide rings resulting in a secondary cross-link. Field emission scanning electron microscope (FESEM) observation and electrochemical impedance spectroscopy (EIS) test found that, when the cross-linking agent was used at 6%, the coating remains intact and kept an impedance of as high as 108Ωcm2 even after being immersed in NaCl solution for 30 days. Copper-accelerated acetic acid-salt spray (CASS) test confirmed that the coating containing 6% cross-linking agent provided the best protection for the carbon steel substrate.

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“…Component B is a curing agent for epoxy resins, which helps bind epoxy molecules together. Currently, there are many methods of curing epoxy resin by chemical [9,10,11], and UV light [12]. Chemical curing agents such as polyamide, aromatic diamine with hetero-cyclic side chain structure, amido amide, cyclo aliphatic [13].…”

Section: Introductionmentioning

confidence: 99%

The effect of TiO2 Nanoparticles in Epoxy Paint Formulation on Metal Surfaces

Hai

Truc

Trung

2021

JERR

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Currently, epoxy paint is being widely used in the industry. Nanotechnology can create many small nanometer-sized materials with many applications, it has brought many outstanding properties to epoxy paints. The aim of this study is to investigate the effect of TiO2 nanoparticles in epoxy paint formulation towards metal surface. We created a sample of two-component epoxy paint, part A is epoxy resin, anti-sedimentation, dispersant substance, foam breaking agent, cover substance, solvent, other additives, and part B is a curing agent for epoxy resins. Methods of analyzing the properties of the epoxy paint film are based on Vietnam standards. TiO2 nanoparticles are a good coating substance in epoxy paint. The study results showed that TiO2 nanoparticles have increased the properties of the epoxy paint film, improving the Impact and Glossy of the epoxy paint film. TiO2 nanoparticles increases from 1% to 6% by weight, the impact increased by about 18.75%. (80 to 96 kg.cm), Glossy 600 increased by about 12.79% (80 to 97). Adding TiO2 nanoparticles to epoxy paint has increased Impact and Glossy for the paint film. The higher the rate of TiO2 nanoparticles, the better the properties of the epoxy paint film. Therefore, TiO2 nanoparticles are a good coating in epoxy paint, it improves the properties of the paint film. Because the cost of nanomaterials is higher than that of normal coating materials, the nanomaterial should only be added with a ratio of about 2-5% by weight.

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Synthesis and characterization of emulsion‐type curing agent of water‐borne epoxy resin

Cited by 20 publications

References 15 publications

Synthesis of a self‐emulsifiable waterborne epoxy curing agent based on glycidyl tertiary carboxylic ester and its cure characteristics

Synthesis of a self‐emulsifiable waterborne epoxy curing agent based on glycidyl tertiary carboxylic ester and its cure characteristics

Corrosion Resistance of Waterborne Epoxy Resin Coating Cross-Linked by Modified Tetrabutyl Titanate

The effect of TiO2 Nanoparticles in Epoxy Paint Formulation on Metal Surfaces

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