本文選題：離子液體 + 離子液體助磨劑��； 參考：《硅酸鹽通報(bào)》2017年09期

【摘要】：首次以磷系表面活性劑制備出離子液體并研究其作為水泥助磨劑的性能。利用烷基三苯基溴化膦等四種陽離子表面活性劑與十二烷基苯磺酸鈉陰離子表面活性劑(SDBS)反應(yīng)制備出了四種離子液體型磷系兩性表面活性劑。水泥助磨效果顯示,單純的陰、陽離子表面活性劑都沒有明顯助磨效果,但由磷系表面活性劑與SDBS反應(yīng)制備的離子液體都表現(xiàn)出卓越的助磨效果。其中,甲、乙、丙、丁基四種磷系離子液體的80μm篩余量減小率都超過了80%,四種添加劑最佳摻量均為0.23%。從整體看,四種離子液體隨烷基鏈長的增加其助磨效果有增大趨勢(shì)。對(duì)同種化合物,球磨時(shí)間大于50 min時(shí),45μm篩余量減小率增加,80μm篩余量減小率卻變小。通過實(shí)驗(yàn)表明,其休止角均小于粉體工業(yè)上規(guī)定的最大值40°,這4種助磨劑降低了水泥標(biāo)準(zhǔn)稠度。由此可見,新制備出的四種離子液體都具有較優(yōu)異的助磨性能。
[Abstract]:Ionic liquids were prepared from phosphorous surfactants for the first time and their properties as grinding aids of cement were studied. Four ionic liquid amphoteric surfactants were prepared by the reaction of four cationic surfactants such as alkyl triphenyl phosphine bromide and sodium dodecylbenzene sulfonate (SDBs). The grinding effect of cement showed that the pure anionic and cationic surfactants had no obvious grinding aid effect, but the ionic liquids prepared by the reaction of phosphorous surfactants with SDBs showed excellent grinding aid effect. Among them, the reduction rate of 80 渭 m sieve allowance of four kinds of phosphorus ionic liquids, A, B, C and Ding Ji, is more than 80 渭 m, and the optimum addition of the four additives is 0.23. As a whole, the grinding effect of four ionic liquids increases with the increase of alkyl chain length. For the same compound, when the milling time is more than 50 min, the reduction rate of 45 渭 m sieve residue increases by 80 渭 m, but the decrease rate becomes smaller. The experimental results show that the angle of repose is less than the maximum 40 擄in powder industry, and the four kinds of grinding aids decrease the standard consistency of cement. It can be seen that the four newly prepared ionic liquids have excellent grinding aids.
【作者單位】： 華東交通大學(xué)材料科學(xué)與工程學(xué)院;
【基金】：國家自然科學(xué)基金(21563011)
【分類號(hào)】：TQ172.463

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本文編號(hào)：2073663