排序方式: 共有30条查询结果,搜索用时 15 毫秒
1.
The wettability, surfactivity and the correlation between wettability and surfactivity of sodium diethylhexylphosphate, sodium
diethylhexyl polyoxyethylene phosphate and their complex in NaOH solutions were studied. A complex alkali resistant phosphate
surfactant with good permeability was prepared. The wettability of surfactants was investigated by measuring the immersion
time, sinking time and capillary effects of nature cotton grey fabric in NaOH solutions. The surfactivity of the surfactants
was characterized by measuring the surface tension. The effect of the complex on the surface appearance of cotton grey fabric
was also investigated with a scanning electron microscope (SEM). The results show that all the surfactants exhibit good wettability
for cotton grey fabric in 0.5–5.0 mol/L of NaOH solutions, the complex system exhibits better wettability in 5.0–7.0 mol/L
of NaOH solutions, in comparison with either corresponding single surfactant component employed, and wettability is well correlative
with the surfactivities of the surfactant. SEM images indicate that the cotton grey fabric is well wetted by the alkaline
surfactant solution and the quality of fabric is improved. 相似文献
2.
脂肪酸甲酯磺酸盐及含此表面活性剂的洗涤剂中二钠盐的分析 总被引:4,自引:0,他引:4
本采用阴-阳离子两相滴定分离与酸碱滴定的两步法来分析脂肪酸甲酯磺酸盐及含此表面活性剂的洗涤剂中二钠盐含量,克服了二钠盐不易溶解及排除了Na2CO3,STPP水玻璃,CMC等碱性助剂对酸-碱滴定的干扰,回收率在96%~104%之间。 相似文献
3.
加入WTO后,我国已逐步形成了一支标准国际化的人才队伍,部分工程建设技术标准也已具备了推向国际的实力。然而,在海外工程承包市场中,实际采用我国工程建设技术标准的项目数量仍然极少,由此出现了我国建筑承包企业出人员、出资金、出技术,而工程却采用其他国家工程建设技术标准的尴尬局面。 相似文献
4.
阐述了风电场功率预测的方法和原理,采用物理方法和ELMAN神经网络相结合的方法,搭建功率预测模型,确定输入参数、隐层单元个数。以某在运风电场为例,利用功率预测模型进行了风电场功率预测。该风电场功率预测模型对风电场功率出力预测具有重要的现实意义。 相似文献
5.
6.
7.
8.
以大豆分离蛋白为黏结剂,在阴离子表面活性剂十二烷基磺酸钠、羧甲基纤维素钠以及甲基硅酸钠等助剂的共同作用下,开发了一种新型煤尘抑尘剂。通过在神州混煤、烟煤、无烟煤的静止煤堆表面上进行试验发现:该抑尘剂具有广泛的适用性。实验还发现,在同样条件下,该抑尘剂比市场上常用的二种同类产品具有更优异的抗风性和防水渗透性。这与所开发的抑尘剂喷洒在煤料上能够形成一层坚硬的固化层有关,该固化层具有一定的强度、抗风性、抗雨淋性。更进一步地,该抑尘剂所采用的大豆分离蛋白是天然可再生材料,不会对环境在成二次污染。 相似文献
9.
10.