Effects of cationic gemini surfactants on basic hydrolysis of polyester superfine fiber;
阳离子Gemini表面活性剂对超细聚酯纤维碱水解的影响
The results of experiments showed that by basic hydrolysis procedure,the synthesis time is shorten from 45-50 min to 30-35 min,uncorrected synthesis yield can be increased from 45%-50% to 60%-65%,and the preparing procedure is stable.
本工作通过调整设备、改进制备方法,用碱水解法制备了18F-FDG。
The production of low-alkali cement by using low-grade limestone;
利用低品位石灰石生产低碱水泥的研究与实践
Through comparative test more successful in resolving the low-alkali cement additives and the compatibility issues,thus successfully prepared a good performance durability of concrete.
以润扬长江公路大桥悬索桥南索塔混凝土施工为背景,就南索塔高性能混凝土技术进行论述,通过大量对比试验较好地解决了低碱水泥与外加剂的相容性问题,从而成功制备出耐久性良好的高性能混凝土。
The effect of mobility control agent (PAM solution) of different mass concentration and different pore volume on oil recovery efficiency in alkaline water-flooding is studied by using the artificial core.
利用人造岩心,分析了碱水驱油过程中不同质量浓度、不同孔隙体积倍数的流度控制剂(聚丙烯酰胺溶液)对碱水驱油采收率的影响。