Ultraviolet-curable polyurethane acrylate nanocomposite coatings based on surface-modified calcium carbonate

Ki Ho Nam; Kwangwon Seo; Jongchul Seo; Sher Bahadar Khan; Haksoo Han

doi:10.1016/j.porgcoat.2014.12.004

Ultraviolet-curable polyurethane acrylate nanocomposite coatings based on surface-modified calcium carbonate

Ki Ho Nam, Kwangwon Seo, Jongchul Seo, Sher Bahadar Khan, Haksoo Han

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Polyurethane acrylate/surface-modified colloidal calcium carbonate (PUA/SCaCO₃) nanocomposite coatings were successfully prepared via a UV-curing technology. The structural and morphological features of the PUA/SCaCO₃ nanocomposites were characterized by Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscope (FE-SEM), atomic force microscopy (AFM), and wide angle X-ray diffraction (XRD). The physical properties were strongly dependent upon chemical and morphological structures that originated from differences in SCaCO₃ loading. A critical SCaCO₃ concentration was observed for the evolution of both the structure and physical properties of the PUA/SCaCO₃ nanocomposites as a function of SCaCO₃ content. The thermal stability was measured by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively, and displayed some enhancement with the incorporation of SCaCO₃ into PUA. Although the nanomechanical properties increased up to 3 wt% SCaCO₃ content, they decreased due to lack of interfacial interaction with high SCaCO₃ loading. Most importantly, the water uptake and water vapor transmission rate (WVTR) varied from 5.51 to 1.78 wt% and 28.9 to 19.9 g/m² day, respectively, exhibiting significant enhancement in water resistance. The results clearly reveal that the performance of UV-curable PUA/SCaCO₃ nanocomposites is strongly dependent on organically-modified colloidal SCaCO₃ nanoparticles.

Original language	English
Pages (from-to)	22-30
Number of pages	9
Journal	Progress in Organic Coatings
Volume	85
DOIs	https://doi.org/10.1016/j.porgcoat.2014.12.004
Publication status	Published - 2015 Aug 1

Bibliographical note

Funding Information:
This research was supported by Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) of the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2013078867 ) and National Research Foundation of Korea Grant funded by the Korean Government (MEST) ( NRF-2009-C1AAA001-0092926 ).

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Surfaces, Coatings and Films
Organic Chemistry
Materials Chemistry

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10.1016/j.porgcoat.2014.12.004

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title = "Ultraviolet-curable polyurethane acrylate nanocomposite coatings based on surface-modified calcium carbonate",

abstract = "Polyurethane acrylate/surface-modified colloidal calcium carbonate (PUA/SCaCO3) nanocomposite coatings were successfully prepared via a UV-curing technology. The structural and morphological features of the PUA/SCaCO3 nanocomposites were characterized by Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscope (FE-SEM), atomic force microscopy (AFM), and wide angle X-ray diffraction (XRD). The physical properties were strongly dependent upon chemical and morphological structures that originated from differences in SCaCO3 loading. A critical SCaCO3 concentration was observed for the evolution of both the structure and physical properties of the PUA/SCaCO3 nanocomposites as a function of SCaCO3 content. The thermal stability was measured by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively, and displayed some enhancement with the incorporation of SCaCO3 into PUA. Although the nanomechanical properties increased up to 3 wt% SCaCO3 content, they decreased due to lack of interfacial interaction with high SCaCO3 loading. Most importantly, the water uptake and water vapor transmission rate (WVTR) varied from 5.51 to 1.78 wt% and 28.9 to 19.9 g/m2 day, respectively, exhibiting significant enhancement in water resistance. The results clearly reveal that the performance of UV-curable PUA/SCaCO3 nanocomposites is strongly dependent on organically-modified colloidal SCaCO3 nanoparticles.",

author = "Nam, {Ki Ho} and Kwangwon Seo and Jongchul Seo and Khan, {Sher Bahadar} and Haksoo Han",

note = "Funding Information: This research was supported by Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) of the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2013078867 ) and National Research Foundation of Korea Grant funded by the Korean Government (MEST) ( NRF-2009-C1AAA001-0092926 ). Publisher Copyright: {\textcopyright} 2015 Elsevier B.V. All rights reserved.",

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AU - Nam, Ki Ho

AU - Seo, Kwangwon

AU - Seo, Jongchul

AU - Khan, Sher Bahadar

AU - Han, Haksoo

N1 - Funding Information: This research was supported by Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) of the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2013078867 ) and National Research Foundation of Korea Grant funded by the Korean Government (MEST) ( NRF-2009-C1AAA001-0092926 ). Publisher Copyright: © 2015 Elsevier B.V. All rights reserved.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Polyurethane acrylate/surface-modified colloidal calcium carbonate (PUA/SCaCO3) nanocomposite coatings were successfully prepared via a UV-curing technology. The structural and morphological features of the PUA/SCaCO3 nanocomposites were characterized by Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscope (FE-SEM), atomic force microscopy (AFM), and wide angle X-ray diffraction (XRD). The physical properties were strongly dependent upon chemical and morphological structures that originated from differences in SCaCO3 loading. A critical SCaCO3 concentration was observed for the evolution of both the structure and physical properties of the PUA/SCaCO3 nanocomposites as a function of SCaCO3 content. The thermal stability was measured by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively, and displayed some enhancement with the incorporation of SCaCO3 into PUA. Although the nanomechanical properties increased up to 3 wt% SCaCO3 content, they decreased due to lack of interfacial interaction with high SCaCO3 loading. Most importantly, the water uptake and water vapor transmission rate (WVTR) varied from 5.51 to 1.78 wt% and 28.9 to 19.9 g/m2 day, respectively, exhibiting significant enhancement in water resistance. The results clearly reveal that the performance of UV-curable PUA/SCaCO3 nanocomposites is strongly dependent on organically-modified colloidal SCaCO3 nanoparticles.

AB - Polyurethane acrylate/surface-modified colloidal calcium carbonate (PUA/SCaCO3) nanocomposite coatings were successfully prepared via a UV-curing technology. The structural and morphological features of the PUA/SCaCO3 nanocomposites were characterized by Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscope (FE-SEM), atomic force microscopy (AFM), and wide angle X-ray diffraction (XRD). The physical properties were strongly dependent upon chemical and morphological structures that originated from differences in SCaCO3 loading. A critical SCaCO3 concentration was observed for the evolution of both the structure and physical properties of the PUA/SCaCO3 nanocomposites as a function of SCaCO3 content. The thermal stability was measured by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively, and displayed some enhancement with the incorporation of SCaCO3 into PUA. Although the nanomechanical properties increased up to 3 wt% SCaCO3 content, they decreased due to lack of interfacial interaction with high SCaCO3 loading. Most importantly, the water uptake and water vapor transmission rate (WVTR) varied from 5.51 to 1.78 wt% and 28.9 to 19.9 g/m2 day, respectively, exhibiting significant enhancement in water resistance. The results clearly reveal that the performance of UV-curable PUA/SCaCO3 nanocomposites is strongly dependent on organically-modified colloidal SCaCO3 nanoparticles.

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JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

ER -

Ultraviolet-curable polyurethane acrylate nanocomposite coatings based on surface-modified calcium carbonate

Abstract

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