• Title/Summary/Keyword: UV-curable paint

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Investigating the Antibacterial Qualities of Copper Particle-Infused UV-Curable Paint for Wood Flooring Boards (구리입자 기반 UV경화도료 코팅 목질 마루판의 항균 특성)

  • Lee, Dong-Gun;Lim, Nam-Gi;Koh, Jae-Song
    • Journal of the Korea Institute of Building Construction
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    • v.23 no.4
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    • pp.393-404
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    • 2023
  • This research evaluates the antibacterial and transparency properties of UV-curable paint augmented with 20wt% copper particles. The transparency assessment indicated that the paint maintained a total luminous transmittance of 90% or above, thereby matching or surpassing the performance of standard UV-curing paints. To further test its antibacterial capabilities, wooden flooring boards were coated with the UV-curable paint laced with 20wt% copper particles, which had been surface-modified with a silane coupling agent. Following the fatigue tests of these treated boards, an impressive bacterial reduction rate of 99.9% was noted after a span of 6 hours, demonstrating the paint's exceptional antibacterial performance.

Improvement of anti-corrosive property for alloy plated steel sheet by UV curable organic-inorganic hybrid coatings (합금도금강판 내식성 향상을 위한 UV 경화형 유무기 하이브리드 코팅)

  • Park, Jongwon;Lee, Kyunghwang;Na, Hyunju;Park, Byungkyu;Nam, Yeungsub;Hong, Shinhyub
    • Corrosion Science and Technology
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    • v.12 no.1
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    • pp.27-33
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    • 2013
  • According to its merits about high curing speed and low emission of volatile organic compounds, UV curable inorganic-organic coating technology has been developed as an alternative for toxic and carcinogenic chromate-based treatments for years. It is consistently observed that ultra-thin films offer excellent corrosion protection as well as paint adhesion to metals. Based on the tetra-ethylorthosilicate(TEOS) and methacryloxypropyl trimethoxysilane(MPTMS), inorganic sol was synthesized and formed hybrid networks with UV curable acrylic monomer, 6-hexanediol diacrylate(HDDA), trimethylolpropane triacrylate(TMPTA), pentaerylthritol triacrylate(PETA). Several methods were used to test their properties such as salt spray test, potentiodynamic measurement, tape peel test, etc. It was shown that anti-corrosive property and stability of storage were affected by the molecular ratios of inorganic and organic compounds. It was not only the stability of storage, but had a excellent anti-corrosive, paint adhesive, and anti-solvent properties in a final molar ratios of 0.6/0.04/0.86/0.005 (TEOS/MPTMS/Acetone/HNO3) and 0.08/0.106/0.081/0.02 (TMPTA/HDDA/PETA/photo initiator).

Physical Properties of UV-Curable Powder Coatings with Different Photoinitiator Contents (광개시제의 함량에 따른 UV 경화형 분체도료의 물리적 특성)

  • Moon, Je-Ik;Choi, Jae-Hoon;Hwang, Hyun-Deuk;Kim, Hyun-Joong;Kim, Nam-Hong
    • Journal of Adhesion and Interface
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    • v.9 no.2
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    • pp.32-37
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    • 2008
  • A series of UV-curable powder coatings with different contents of photoinitiator (0.5 wt%, 1 wt%, 2 wt%) were formulated and measured gel content, tensile strength of cured film. Heat-sensitive substrates such as MDF, plywood and PVC were coated UV-curable powder and cured coatings were measured physical properties by pendulum hardness tester, glossmeter, pull-off adhesion tester. With increasing photoinitiator content, adhesion force between coating and substrate decreased because of crosslinking density increasing. The results of pendulum hardness was not significantly changed but gloss was changed according to different substrates. Adhesion of UV-curable coatings was enough to apply for heat-sensitive substrates. From these results, we concluded that contents of photoinitiator was a effective factor in UV-curable powder coatings. UV-curable coatings was a portential candidate for heat-sensitive substrates.

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