Modification of Nano MgCO₃ Puree on the Mechanical Properties and Gloss for Waterborne UV-Curing Wood Coatings

Abstract:

In this paper, waterborne ultraviolet (UV)-curing wood coatings were modified by nano MgCO₃ puree, and prepared by optimizing the process parameters. The mechanical properties (hardness, adhesion and resistance impact strength) and gloss of waterborne UV-curing wood coatings modified by nano MgCO₃ puree were tested. It was found that the mechanical properties of coatings increased when nano MgCO₃ content increased from 0 to 3.0%. Waterborne UV-curing wood coatings had good hardness, adhesion and impact strength when the nano MgCO₃ content was 3%-4%. The hardness was 3H, the adhesion was grade 1, and impact strength was 40 kg∙cm. However, when nano MgCO₃ content was higher than 4%, the mechanical properties of coatings decreased. As the nano MgCO₃ content gradually increasing, the gloss of waterborne UV-curing wood coatings modified by nano MgCO₃ puree decreased. When the nano MgCO₃ content was 4.0%, the gloss of coating was 33%. When the nano MgCO₃ content exceeded 4.0%, the gloss of waterborne UV-curing wood coatings displayed matte.

• Periodical: Applied Mechanics and Materials (Volume 864)
• Pages: 100-105
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.864.100
• Online since: April 2017
• Authors: Xiao Xing Yan*, Yun Ting Cai, Huan Ye, Ye Ping Yuan, Zhi Hui Wu, Wei Xu
• Keywords: Coating, Gloss, Mechanical Properties, Nano MgCO₃, UV

References

[1] K. Liu, Z. G. Su, S. D. Miao, et al, UV-curable enzymatic antibacterial waterborne polyurethane coating, Biochem. Eng. J. 113 (2016) 107-113.

DOI: 10.1016/j.bej.2016.06.004

[2] Z. Ge, C. Huang, C. Zhou, et al, Synthesis of a novel UV crosslinking waterborne siloxane–polyurethane, Prog. Org. Coat. 90 (2016) 304-308.

DOI: 10.1016/j.porgcoat.2015.10.011

[3] J. Y. Dai, S. Q. Ma, Y. G. Wu, et al, High bio-based content waterborne UV-curable coatings with excellent adhesion and flexibility, Prog. Org. Coat. 87 (2015) 197-203.

DOI: 10.1016/j.porgcoat.2015.05.030

[4] O. Llorente, M. J. Fernandez-Berridi, A. Gonzalez, et al, Study of the crosslinking process of waterborne UV curable polyurethane acrylates, Prog. Org. Coat. 99 (2016) 437-442.

DOI: 10.1016/j.porgcoat.2016.06.020

[5] B. Ghosh, S. Gogoi, S. Thakur, et al, Bio-based waterborne polyurethane/carbon dot nanocomposite as a surface coating material, Prog. Org. Coat. 90 (2016) 324-330.

DOI: 10.1016/j.porgcoat.2015.10.025

[6] R. Herrera, M. Muszynska, T. Krystofiak, et al, Comparative evaluation of different thermally modified wood samples finishing with UV-curable and waterborne coatings, Appl. Surf. Sci. 357 (2015) 1444-1453.

DOI: 10.1016/j.apsusc.2015.09.259

[7] L. Poussard, J. Lazko, J. Mariage, et al, Biobased waterborne polyurethanes for coating applications: How fully biobased polyols may improve the coating properties, Prog. Org. Coat. 97 (2016) 175-183.

DOI: 10.1016/j.porgcoat.2016.04.003

[8] M. V. Cristea, B. Riedl, P. Blanchet, Enhancing the performance of exterior waterborne coatings for wood by inorganic nanosized UV absorbers, Prog. Org. Coat. 69(4) (2010) 432-441.

DOI: 10.1016/j.porgcoat.2010.08.006

[9] X. Z. Gao, H. J. Liu, F. Cheng, et al, Thermoresponsive polyaniline nanoparticles: Preparation, characterization, and their potential application in waterborne anticorrosion coatings, Chem. Eng. J. 283 (2016) 682-691.

DOI: 10.1016/j.cej.2015.08.015

[10] J. Miklecic, S. L. Blagojevic, M. Petric, et al, Influence of TiO2 and ZnO nanoparticles on properties of waterborne polyacrylate coating exposed to outdoor conditions, Prog. Org. Coat. 89 (2015) 67-74.

DOI: 10.1016/j.porgcoat.2015.07.016

[11] X. Wang, D. Xue, Direct observation of the shape evolution of MgO whiskers in a solution system, Mater. Lett. 60(25-26) (2006) 3160-3164.

DOI: 10.1016/j.matlet.2006.02.066

[12] H. D. Hwang, J. I. Moon, J. H. Choi, et al, Effect of water drying conditions on the surface property and morphology of waterborne UV-curable coatings for engineered flooring, J. Ind. Eng. Chem. 15(3) (2009) 381-387.

DOI: 10.1016/j.jiec.2008.11.002

[13] S. Veigel, G. Grull, S. Pinkl, et al, Improving the mechanical resistance of waterborne wood coatings by adding cellulose nanofibres, React. Funct. Polym. 85 (2014) 214-220.

DOI: 10.1016/j.reactfunctpolym.2014.07.020

[14] H. Z. Liao, B. Zhang, L. H. Huang, et al, The utilization of carbon nitride to reinforce the mechanical and thermal properties of UV-curable waterborne polyurethane acrylate coatings, Prog. Org. Coat. 89 (2015) 35-41.

DOI: 10.1016/j.porgcoat.2015.07.021