Abstract
It is of great interest and challenge to simultaneously improve the storage stability and bond strength of one-component addition-cure liquid silicone rubber (OLSR) coating for electronic circuit board. In this work, we proposed an efficient approach to address this issue by incorporating both cyano-modification platinum catalyst (CN–PT) and urethane-containing poly(hydromethylsiloxane) (N-PHMS) into OLSR coating using a mechanical mixer. The CN–PT and N-PHMS were synthesized through thermal polymerization reaction and hydrosilylation reaction, respectively. The OLSR coating containing 0.3 phr CN–PT and 3 phr N-PHMS showed the best properties, with a tensile bond strength of 1.63 MPa, a storage period > 180 d at 25 °C, and a curing rate < 2 h at 80 °C. The salt-spray resistance and continuous power-on performance of OLSR coating were also improved, compared with pure OLSR coating. The synergism of CN–Pt and N-PHMS on the enhancement of both the storage stability and bond strength of OLSR coating was also explored. Our findings exhibited great potentials for fabricating OLSR coating with excellent long-term stable service performance including high storage stability and protective ability.
Similar content being viewed by others
References
Cheng Chen, Yan He, Changqing Liu, Huaqing Xie, Yu. Wei, Comprehensive excellent performance for silicone-based thermal interface materials through the synergistic effect between graphene and spherical alumina. J Mater Sci Mater Electron 31(2), 4642–4649 (2020). https://doi.org/10.1007/s10854-020-03016-3
Qingguo Chen, Banggen Xi, Jinfeng Zhang, Xinyu Wang, Hongda Yang, Dielectric and space charge characteristics of nano-modified liquid silicone rubber for high-voltage DC cable accessories. J Mater Sci Mater Electron 31(8), 16819–16829 (2020). https://doi.org/10.1007/s10854-020-04236-3
E. Salahinejad, R. Eslami-Farsani, L. Tayebi. Corrosion failure analysis of printed circuit boards exposed to H2S-containing humid environments. Eng Fail Anal 79(9), 538–546 (2017). https://doi.org/10.1016/j.engfailanal.2017.05.038.
L.K. Namitha, S. Ananthakumar, M.T. Sebastian, Aluminum nitride filled flexible silicone rubber composites for microwave substrate applications. J Mater Sci Mater Electron 26(11), 891–897 (2015). https://doi.org/10.1007/s10854-014-2479-9
Kee-Hyun. Shin, Ho Anh Duc. Nguyen, Janghoon Park, Dongjun Shin, Dongjin Lee, Surface analysis of silver-plated circuit boards in a salt-spray environment. J Coat Technol Res 14(10), 95–106 (2017). https://doi.org/10.1007/s11998-016-9844-y
Q. Wang, S. Zhang, G. Liu, T. Lin, P. He. The mixture of silver nanowires and nanosilver-coated copper micronflakes for electrically conductive adhesives to achieve high electrical conductivity with low percolation threshold. J Alloys Comp 820(4), 153–184 (2020). https://doi.org/10.1016/j.jallcom.2019.153184
Q. Wang, S. Zhang, T. Lin, P. Zhang, P. He, K-W. Paik. Highly mechanical and high-temperature properties of Cu-Cu joints using citrate-coated nanosized Ag paste in air. Prog Nat Sci Mater Int 9(1) (2021). https://doi.org/10.1016/j.pnsc.2020.12.004
M.T. Byrne, Y.K. Gun’ko, Recent Advances in Research on Carbon Nanotube-Polymer Composites. Adv Mater 22(15), 1672–1688 (2010). https://doi.org/10.1002/adma.200901545
A. Latifi, M. Imani, M.T. Khorasani, M.D. Joupari. Plasma surface oxidation of 316L stainless steel for improving adhesion strength of silicone rubber coating to metal substrate. Appl Surf Sci 320(11), 471–481 (2014). https://doi.org/10.1016/j.apsusc.2014.09.084.
Shan Cao, Jiadao Wang, Yan Zhang, Darong Chen, The effectiveness of an antifouling compound coating based on a silicone elastomer and colored phosphor powder against Navicula species diatom. J. Coat. Technol. Res. 10(12), 397–406 (2013). https://doi.org/10.1007/s11998-012-9457-z
Qipeng Zhang, Minghua Wua, Structure of vinyl polysiloxane on properties of polyacrylates film and its pigment printing application. J Coat Technol Res 17(11), 937–948 (2020). https://doi.org/10.1007/s11998-020-00320-9
C. Ju, X. Wang, R. Zhu, X. Ren. Comparative analysis of printed circuit board coating on corrosion test. Eng Asset Manag Syst Prof Pract Cert 30(12), 1359–1369 (2014). https://doi.org/10.1007/978-3-319-09507-3_115
U. Eduok, O. Faye, J. Szpunar. Recent developments and applications of protective silicone coatings: a review of PDMS functional materials. Prog Org Coat 111(10), 124–163 (2017). https://doi.org/10.1016/j.porgcoat.2017.05.012.
Y.P. Li, X.R. Zeng, X.J. Lai, H.Q. Li, W.Z. Fang. Effect of the platinum catalyst content on the tracking and erosion resistance of addition-cure liquid silicone rubber. Poly Test 63(10), 92–100 (2017). https://doi.org/10.1016/j.polymertesting.2017.08.017.
T. Liu, X.R. Zeng, W.Z. Fang, X.J. Lai, H.Q. Lia. Synthesis of a novel hydantoin-containing silane and its effect on the tracking and bacteria resistance of addition-cure liquid silicone rubber. Appl Surf Sci 43(11), 630–640 (2017). https://doi.org/10.1016/j.apsusc.2017.06.117.
C.X. Xie, X.R. Zeng, W.Z. Fang, X.J. Lai, H.Q. Li. Effect of alkyl-disubstituted ureido silanes with different alkyl chain structures on tracking resistance property of addition-cure liquid silicone rubber. Polym Degrad Stab 142(8), 263–272 (2017). https://doi.org/10.1016/j.polymdegradstab.2017.07.015.
C.X. Xie, X.J. Lai, H.Q Li, X.R. Zeng. Effective improvement of anti-tracking of addition-cure liquid silicone rubber via charge dissipation of fluorosilane-grafted silica. Polym Degrad Stab 167(9), 250–258 (2019). https://doi.org/10.1016/j.polymdegradstab.2019.06.014.
H.Q. Li, Y.P Li, T.Y. Wu, X.F. Liao, T. Liu, X.J. Lai, X.R. Zeng. Plasma resistance of addition-cure liquid silicone rubber with Ureido-attached MQ silicone resin. Surf Interf 14(3), 55–60 (2019). https://doi.org/10.1016/j.surfin.2018.11.009.
K. Kishi, T. Ishimaru, M. Ozono, I. Tomita, T. Endo, Development and application of latent hydrosilylation catalysts [2]-control of catalytic activity of platinumcatalyst by polystyrene derivatives havingpropargyl moieties. J Polym Sci Part A Polym Chem 38(1), 35–42 (2000)
K. Kishi, T. Ishimaru, M. Ozono, I. Tomita, T. Endo. Development and application of latent hydrosilylation catalysts 3. Control of activity of platinum catalysts by poly (vinyl ether) having propargyl moieties. React Funct Polym 45(9), 131–136 (2000). https://doi.org/10.1016/S1381-5148(00)00020-1
K. Kishi, T. Ishimaru, M. Ozono, I. Tomita, T. Endo. Development and application of a latent hydrosilylation catalyst. IX. Control of the catalytic activity of a platinum catalyst by polymers bearing amine moieties. J Polym Sci Part A Polym Chem 38(2), 804–809 (2000). https://doi.org/10.1002/(SICI)1099-0518(20000301)38:5<804::AID-POLA4>3.0.CO;2-Q
K. Kishi, T. Ishimaru, M. Ozono, I. Tomita, T. Endo. Development and application of latent catalysts for hydrosilylation systems VIII1. control of catalytic activity by Poly(1-phenylethylisocyanide). Polym J 32(3), 294–296 (2000). https://doi.org/10.1295/polymj.32.294
K. Kishi, T. Ishimaru, M. Ozono, I. Tomita, T. Endo, Development and application of latent catalysts for hydrosilylation system1. Control of activity of platinum catalyst by isocyanide. Macromolecules 31(12), 9392–9394 (1998). https://doi.org/10.1021/ma981438a
S. Irifune, A. Itagakia, Organohydrogenpolysiloxane, making method, and addition-cure silicone com position, U.S. Patent 9,012,588. 2012.
C. Zhang, N.E. Shephard, S.M. Rhodes, Zh. Chen, Headgroup effect on silanestructures at buried polymer/ silane and polymer/polymer interfaces and their relations to adhesion. Langmuir 28(3), 6052–6059 (2012). https://doi.org/10.1021/la300004x
C. Zhang, Zh. Chen, Quantitative molecular level understanding of ethoxysilane at poly(dimethylsiloxane)/polymer Interfaces. Langmuir 29(2), 610–619 (2013). https://doi.org/10.1021/la3041727
T. Osamu, S. Kiyotaka, S. Kazuhiro. Organosiloxane compositions exhibiting improved adhesion. EP 0, 497, 349 (1992).
C. Kato, K. Iizuka, O. Hayashida, T. Aketa, S. Shudo, Adhesive silicone rubber composition and separator seal material for fuel ceils, U.S. Patent 8,158,738.2008.
D.C. Ahn, M.A. Lutz, Silicone composition and cured silicone product, U.S. Patent 6,512,037. 2003.
D.C. Ahn, N.E. Shephard, P.A. Olney, C.S. McMillan, Thermal gradient enabled XPS analysis of PDMS elastomer adhesion to polycarbonate. Macromolecules 40(11), 3904–3906 (2007)
T.S. Araki, T.S. Miyao, Self-adhesive organopolysiloxane composition, U.S. Patent 7,632,909. 2009.
R. Kerboua, J. Stein, Curable silicone adhesive compositions, U.S. Patent 6,602,551. 2003.
T. Kobayashi, Y. Matsumoto, Adhesivesilicone compositions, U.S. Patent 5,106,933. 1992.
Acknowledgements
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Li, C., Su, S., Wang, B. et al. Preparation of one-component addition-cure liquid silicone rubber coating with enhanced storage stability and bond strength. J Mater Sci: Mater Electron 32, 21052–21064 (2021). https://doi.org/10.1007/s10854-021-06597-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10854-021-06597-9