Preparation and characterization of composite coatings containing a quaternary ammonium salt as an anti-static agent

被引:28
|
作者
Kugimoto, Yuki [1 ,5 ]
Wakabayashi, Atsumi [1 ]
Dobashi, Toshiaki [2 ]
Ohnishi, Osamu [3 ]
Doi, Toshiro K. [4 ]
Kurokawa, Syuhei [5 ]
机构
[1] Sumitomo Osaka Cement Co Ltd, 585 Toyotomicho, Funabashi, Chiba 2748601, Japan
[2] Gunma Univ, Grad Sch Sci & Technol, Div Mol Sci, 1-5-1 Tenjin, Kiryu, Gunma 3768515, Japan
[3] Miyazaki Univ, Dept Mech Design Syst Engn, 1-1 Gakuen Kibanadai Nishi, Miyazaki, Miyazaki 8892192, Japan
[4] Kyushu Univ, KASTEC, 6-1 Kasuga Koen, Kasuga, Fukuoka 8168580, Japan
[5] Kyushu Univ, Dept Mech Engn, Nishi Ku, 744 Motohka, Fukuoka 8190395, Japan
关键词
Antistatic; Coating; Quaternary ammonium; Surface-concentrating; SURFACE MODIFIERS; LATEX FILMS; ADDITIVES; POLYMER; NANOCOMPOSITES; TRANSPARENT; BLENDS;
D O I
10.1016/j.porgcoat.2015.11.013
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The main aim of the present study is to manufacture antistatic sheets with high transparency and high electrical conductivity by dip coating. Here, we used coating solutions consisting of a quaternary ammonium salt, a urethane acrylate oligomer, a photoinitiator, and a mixture of solvents which contains a water-soluble high boiling solvent of monobutyl glycol ether, 2-butoxyethanol. The coating solutions were deposited on polymethyl methacrylate (PMMA) substrates, which were subjected to a two-step drying process at 23 degrees C and at 60 degrees C, and subsequently cured by ultraviolet radiation. We have examined the effect of the concentration of the water-soluble monobutyl glycol ether, relative humidity (RH) at the first step, and drying time on the electrical conductivity, contact angle, and optical transmittance and haze of the coated layers. The surface electrical resistivity (rho(s)) monotonically decreased with the concentration of the monobutyl glycol ether, RH, and drying time. The water contact angle of the surface of the coated layers increased with decrease in rho(s). These results strongly suggest a migration and fixation of the quaternary ammonium salt at the air/layer interface during the drying process. The coated PMMA sheet prepared under the optimal condition showed fairly good performance in terms of the optical and electrical properties. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:80 / 84
页数:5
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