Volume 37 Issue 1
Jun.  2022
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Article Navigation >  Development and Application of Materials  > 2022  >  37(1): 45-54
WANG Li, LIN Cunguo, GUAN Jiawei, SU Yan, ZHANG Jinwei, WU Chuanming, DENG Liang. Preparation and Performance Evaluation of Tie-coating for Organosilicon Foulingreleasing Coatings[J]. Development and Application of Materials, 2022, 37(1): 45-54.
Citation: WANG Li, LIN Cunguo, GUAN Jiawei, SU Yan, ZHANG Jinwei, WU Chuanming, DENG Liang. Preparation and Performance Evaluation of Tie-coating for Organosilicon Foulingreleasing Coatings[J]. Development and Application of Materials, 2022, 37(1): 45-54.
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Preparation and Performance Evaluation of Tie-coating for Organosilicon Foulingreleasing Coatings

  • 1. Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Material Research Institute, Qingdao 266237, China;

  • 2. The Natural Environmental Test and Research Center of Science Technology and Industry for National Defense, Chongqing 400039, China

  • Received Date: 2021-08-26
    Available Online: 2022-06-11
    Abstract
  • Organosilicon fouling-releasing coating(FRC) has the advantages of being environmentally friendly and long-term antifouling performance, and it has been widely used in marine antifouling and has broad application prospects. Marine anti-corrosion primers are usually epoxy systems. When FRC is directly coated on the surface of the primers, it is easy to fall off and fail due to the poor compatibility with epoxy primers. Therefore, it is very necessary to apply an intermediate connecting paint between the epoxy primer and organosilicon FRC. Based on the analysis of the surface energy and surface residual active groups of general epoxy anti-corrosion primer and organosilicon FRC, a matching organic silicone epoxy tie-coating is designed and prepared, and wettability between the primer and the FRC is improved to promote the bonding performance. The pigment/binder ratio has a great influence on the adhesion performance of the tie-coating and the primer. The adhesion strength gradually increases with the increase of the pigment/binder ratio, within the range of 4.5-12 MPa. The pigment/binder ratio has a small effect on the adhesion performance of the tie-coating and the FRC, the adhesion strength is about 1.4 MPa, and and the FRC and primer. Compared with the IP1100 SR matching coating, the self-developed tie-coating on the propeller blade tip doesn't peel off easily and had better adaptability to the marine environment.

     

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