Effects of boron nitride nanotube content on waterborne polyurethane–acrylate composite coating materials

Lee, Yong Joon; La, Yunju; Jeon, Ok Sung; Lee, Hak Ji; Shin, Min Jae; Yang, Keun–Hyeok; You, Young Joon; Park, Soo‐Jin

doi:10.1039/d1ra00873k

Cited by 8 publications

(2 citation statements)

References 45 publications

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“…For example, Deng et al 5 produced WPUA with damping performance by altering the composition ratio. Lee et al 6 added rod-type boron nitride nanotubes (BNNTs) to WPUA to synthesize BNNT/WPUA composite films with excellent water resistance, thermal conductivity and corrosion resistance. However, for applications under harsh conditions, WPUA materials inevitably suffer mechanical damage, thereby reducing their service life.…”

Section: Introductionmentioning

confidence: 99%

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Self‐healing waterborne fluorinated polyurethane‐acrylate based on photoreversible reaction and hydrogen bonds

Liu,

Zhou,

2024

Polymer International

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The development of self‐healing materials is an effective strategy to improve the service life of polymer materials. In this study, self‐healing waterborne fluorinated polyurethane‐acrylate (WFPUA) containing UV‐responsive coumarin groups was prepared by Pickering emulsion polymerization using modified cellulose nanocrystal as a stabilizer. The effect of double bond‐terminated waterborne polyurethane (WPU) content on emulsion polymerization and latex film properties was mainly studied. Due to the dynamic reversibility of the coumarin groups and the synergistic effect of hydrogen bonds, the optimized sample (WFPUA‐30) had excellent mechanical properties and self‐healing properties. The tensile strength was 5.24 MPa, and the elongation at break was 267%. The self‐healing efficiency of tensile strength and elongation at break after 6 h of repair were 86.52% and 93.20%, respectively. In addition, due to the presence of fluorine‐containing groups, the water and oil contact angles of the latex film could reach 101.7°and 82.1°, respectively. This work broadens the way to manufacture self‐healing and multifunctional waterborne polyurethane‐acrylates.

show abstract

Section: Introductionmentioning

confidence: 99%

“…produced WPUA with damping performance by altering the composition ratio. Lee et al 6 . added rod‐type boron nitride nanotubes (BNNTs) to WPUA to synthesize BNNT/WPUA composite films with excellent water resistance, thermal conductivity and corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Self‐healing waterborne fluorinated polyurethane‐acrylate based on photoreversible reaction and hydrogen bonds

Liu,

Zhou,

2024

Polymer International

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Anticorrosive waterborne polyurethane coating with Gemini surfactant‐assisted exfoliation of hexagonal boron nitride nanosheets

Wang

et al. 2023

J of Applied Polymer Sci

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The uniform dispersion of hexagonal boron nitride (h‐BN) in a waterborne polymer matrix remains a challenge in preparing waterborne uniform h‐BN/polymer composite coating. Here, cationic Gemini surfactant (GS‐16) is used as a surfactant and intercalator to exfoliate and functionalize bulk h‐BN for preparing GS‐16‐functionalized h‐BN nanosheets (G‐BNNS). For comparison, the conventional hexadecyl trimethyl ammonium bromide (CTAB) surfactant with the same structural unit was utilized to prepare CTAB‐functionalized BNNS (C‐BNNS). Compared with C‐BNNS, G‐BNNS exhibits larger lateral size, lower thickness, and larger specific surface area. G‐BNNS and C‐BNNS are subsequently blended with waterborne polyurethane (WPU) to prepare composite coatings. Their morphologies, surface roughness, water resistance, mechanical properties and anticorrosive performance of composite coatings are comparatively studied. The water resistance, mechanical, and thermal stability of G‐BNNS/WPU‐0.3 wt% composite films are higher than that of C‐BNNS/WPU‐0.3 wt% and WPU films. The impedance modulus of G‐BNNS/WPU‐0.3 wt% is four orders of magnitude higher than that of pristine WPU and at least one order of magnitude higher than C‐BNNS/WPU‐0.3 wt%. GS‐16 is demonstrated to be an effective surfactant and intercalator to exfoliate and functionalize h‐BN. The as‐prepared G‐BNNS is also certified to be a high‐performance anticorrosive filler for waterborne polymer‐based coatings.

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The influence of hydrogen bond and electrostatic interaction on the mechanical properties of the WPU/modified SiO2 nanocomposites

Liu

Zhang

et al. 2022

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Effects of boron nitride nanotube content on waterborne polyurethane–acrylate composite coating materials

Abstract: Composite coating materials consisting of waterborne polyurethane–acrylate (WPUA) and boron nitride nanotubes (BNNTs) showed enhanced mechanical properties, thermal properties and chemical resistance.

Cited by 8 publications

References 45 publications

Self‐healing waterborne fluorinated polyurethane‐acrylate based on photoreversible reaction and hydrogen bonds

Self‐healing waterborne fluorinated polyurethane‐acrylate based on photoreversible reaction and hydrogen bonds

Anticorrosive waterborne polyurethane coating with Gemini surfactant‐assisted exfoliation of hexagonal boron nitride nanosheets

The influence of hydrogen bond and electrostatic interaction on the mechanical properties of the WPU/modified SiO2 nanocomposites

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