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4454113铁杆木虫 (知名作家)
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CO2/N2开关型表面活性剂是一种新型表面活性剂，其以无毒廉价的气体CO2/N2为刺激开关，其中多为脒类和胍类化合物。本文中自主创新合成了四种新型的Gemini CO2/N2开关型表面活性剂，所用原料均为简单易合成的醇的硫酸酯钠盐和叔胺。本文检测了合成的四种新型Gemini CO2/N2开关型表面活性剂的起泡能力、泡沫半衰期及表面张力，并对比了四种产物之间的差异，得出由1,4-丁二醇硫酸酯钠和壬基酚聚氧乙烯醚型叔胺合成的表面活性剂的起泡性能最好、CMC值最低，但是其半衰期较短，加入聚合物可使半衰期有明显的改观。 关键词：CO2/N2开关型表面活性剂；起泡能力；泡沫半衰期；表面张力 求大神帮忙 发自小木虫Android客户端 |
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4454113: 金币+50, ★★★★★最佳答案 2017-05-25 12:13:12
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4454113: 金币+50, ★★★★★最佳答案 2017-05-25 12:13:12
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CO2 / N2 switch type surfactant is a new type of surfactant, which is non-toxic low-cost gas CO2 / N2 as the stimulus switch, which is mostly amidine and guanidine compounds. In this paper, four novel Gemini CO2 / N2 switch surfactants were synthesized by independent innovation. The raw materials were simple and easy to synthesize the sodium and tertiary amines of alcohol. In this paper, the foaming ability, foam half-life and surface tension of four new Gemini CO2 / N2 switching surfactants were investigated, and the differences between the four products were compared. Ester sodium and nonylphenol polyoxyethylene ether type tertiary amine synthesis of the best foaming performance of the surfactant, CMC value of the lowest, but its half-life is shorter, adding the polymer can make significant changes in half-life. Key words: CO2 / N2 switch type surfactant; foaming ability; foam half-life; surface tension |
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