(西安理工大學(xué) 材料科學(xué)與工程學(xué)院，西安 710048)
摘 要:
采用濕法表面包覆將5種單一表面改性劑按不同的比例包覆于銅鋅粉末的表面，測(cè)試包覆后銅鋅粉末的潤(rùn)濕性、漂浮性以及印刷光澤度，并且分析了改性劑對(duì)銅鋅粉末潤(rùn)濕性和漂浮性的影響機(jī)理。結(jié)果表明，經(jīng) 1%月桂酸鈉包覆的銅鋅粉末的潤(rùn)濕性降低最多，經(jīng)2%吐溫-80包覆的銅鋅粉末的漂浮性升高最多，2%吐溫-80對(duì)銅鋅粉末潤(rùn)濕性的降低和漂浮性的升高都有較大的改善，包覆后的銅鋅粉末印刷光澤度由原來(lái)的54.4提高到75.5，基本可以滿(mǎn)足印刷對(duì)銅鋅粉末的要求。
關(guān)鍵字: 銅鋅粉末；表面活性劑；漂浮性；潤(rùn)濕性
（School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China）
Abstract:Five kinds of single surfactant were coated on the surface of bronze powder by wet method in different proportions, the wettability, floating property and gloss of the coated bronze powders were measured, and the influence mechanisms of the surfactants on the wettability and floating property of the bronze powders were analyzed as well. The results show that the wettability of the bronze powders coated by 1% sodium laurate has the largest decrease and the floating property of the bronze powders coated by 2% tween-80 has the largest increase. 2% tween-80 has significant improvement on the decrease of the wettability and the increase of the floating property of bronze powders. The gloss of the coated bronze powders increases from 54.5 to 75.5, thus can meet the printing requirements for bronze powders.
Key words: bronze powder; surfactant; floating property; wettability
