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bonds is improved remarkably from 20% to more than 78%. Key Words: 3- mercaptopropionic; thiol compounds; epoxy methyl acrylate; UV-curing 巯基化合物的应用已有100多年历史,应用范围从生物化学到高分子科学领域[1].2-甲基-1,3-丙二醇缩二(3-巯基丙酸)酯... of orthogonal test and extreme difference analysis for PT3ME 图5 纯环氧甲基丙烯酸酯双键转化率-时间关系图 Fig.5 Double bond conversion-time relationship of pure epoxy methyl acrylate 图6 环氧甲基丙烯酸酯-巯基化合物体系......
; 文献标志码:A 文章编号:1672-7207(2010)01-0090-07 Synthesis and properties of high solid contents polyurethane-acrylate hybrid emulsions LI Shao-mao, QU Jin-qing, CHEN Huan-qin (School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China) Abstract: High solid contents waterborne polyurethane-acrylate hybrid......
emulsion polymerization[J]. Russian Journal of Applied Chemistry, 2005, 78(12): 1987-1992. [10] SANTOS A M D, MCKENNA T F, GUILLOT J. Emulsion copolymerization of styrene and n-butyl acrylate in presence... and properties of high solid contents polyurethane-acrylate hybrid emulsions[J]. Journal of Central South University (Science and Technology), 2010, 41(1): 90-96. [7] MA Jianzhong, LIU Yihong, BAO Yan......
’ diphenylamino-dithiolphosphoric acid, sodium diethyl dithiocarbamate and sodium butyl xanthate were used for the complex ore flotation. And ZnSO4 and Na2SO3 were used as depressant. Lime was used to modify pH... technology, Pulp Potential Control Flotation by Stages. 3.1 Effects of pH, collector type and pulp potential on flotation Three types of collector were studied, namely sodium butyl xanthate, sodium......
as an activator, butyl xanthate and ammonium dibutyl dithiophosphate as collectors. Considering that silver individual minerals are only 8.50% of total silver minerals, the flotation condition is determined as follows: sodium sulphide 500 g/t, butyl xanthate 8 g/t, and ammonium dibutyl dithiophosphate 10 g/t, the flotation time was 12 min, and the pulp density is around 35%. A flotation......
Society, 2011, 39(11): 1768-1772. [32] PRABHAKARAN K, SOORAJ R, MELKERI A, GOKHALE N M, SHARMA S C. A new direct coagulation casting process for alumina slurries prepared using poly(acrylate) dispersant[J... of concentration of ammonium poly(acrylate) dispersant and MgO on coagulation characteristics of aqueous alumina direct coagulation casting slurries[J]. Journal of the American Ceramic Society, 2008, 91......
of 600 nm (OD600) was 0.81, with the volume ratio of 2% was inoculated into the above culture media under the protection of mixed gases. Finally, the bottle mouths were sealed with butyl rubber......
): 22?24, 14. [14] 蔡春林, 覃文庆, 邱冠周, 徐本军. 丁基黄原酸甲酸乙酯的合成及对黄铜矿浮选研究[J]. 湿法冶金, 2006(6): 94?96.CAI Chun-lin, QIN Wen-qing, QIU Guan-zhou, XU Ben-jun. Synthesis of butyl xanthogen ethyl formate and flotation... investigation of the interaction of butyl ethoxycarbonyl thiourea with copper surface[J]. Colloids and Surfaces, 2004, 232: 129?137. [21] HOPE G A, WOODS R, PARKER G K, WATLING K M, BUCKLEY F M......
process[J]. Hydrometallurgy, 1997, 46(1-2): 105-120. [5]Chowdhury M R, Sanyal S K. Diluent effect on extraction of tellurium(Ⅳ) and selenium(Ⅳ) by tri-n- butyl phosphate[J]. Hydrometallurgy, 1994, 34(3): 319-330. [6]Bandyopadhyay M, Datta S, Sanyal S K. A mass transfer model for the hydrometallurgical extraction of Te(Ⅳ) by tri-n- butyl phosphate[J]. Hydrometallurgy, 1996, 43(1-3): 175-185. [7]李永红......
lead mineral, and kerargyrite (AgCl) is one of the silver minerals occurring in zinc electrolysis anode slime. 3.3 Occurrence of xanthate in zinc anode slime Figure 6 shows the φ-pH diagram of butyl... concentrate after removal of Mn by reductive leaching with SO2 as reductant Fig. 6 φ-pH diagram of butyl xanthate-H2O system (thin lines) under background pulp potential of zinc anode slime 3.4......
