查询词典 surfactant

Adding hot waste water in hollow rod downhole can give full play to surfactant, then the oil can be lifted to surface after heating, deconcentrating and wetting.

由空心抽油杆向井下掺入热污水，充分发挥原油脱出水中所含的表面活性剂作用，对稠油加温、稀释、湿润，然后由抽油泵举升到地面。

To study the relationship between the "tail" structure and the characteristics of Gemini surfactants, a new gemini surfactant CH(subscript 2s)-αω-Bis (dehydroabietyihydroxypropyltetramethylethyldiammonium Chloride) here s=2, has been synthesized. Dehydrogenated rosin as hydrophobic "tails" in the structure. The affections of reacttants ratio, reaction temperature and time on the yield of aimed compound have been discussed.

研究了Gemini表面活性剂中疏水&尾巴&结构对性质的影响，以脱氢松香酸和环氧氯丙烷为原料合成了中间体3-脱氢松香酰氧－2-羟丙基氯，再与四甲基乙二胺反应，得到1种以脱氢松香酰基为疏水链&尾巴&的对称Gemini型双季铵盐阳离子表面活性剂：二氯化－N，N'-二（3-脱氢松香酰氧－2-羟丙基）四甲基乙二胺。

To study the relationship between the hydrophobic "tail" structure and thecharacterizations of Gemini surfactants, a new gemini surfactant CsH2s-α,ω-bis(dehydroabietylhydroxypropylteteramethylethylammonium Chloride),here s=2, wassynthesized. Dehydrogenated rosin as hydrophobic "tails" in the structure. The impact factorsin the two steps are discussed.

为研究gemini表面活性剂中疏水&尾巴&结构对性质的影响，本论文以脱氢松香酸和环氧氯丙烷为原料合成了中间体3-脱氢松香酰氧-2-羟丙基氯，再与四甲基乙二胺反应，得到一种以脱氢松香酰基为疏水链&尾巴&的对称gemini型双季铵盐阳离子表面活性剂：二氯化-N，N′-二(3-脱氢松香酰氧-2-羟丙基)四甲基乙二胺。

The synergy of surfactant and denaturing environment for protein refolding was also confirmed.

表面活性剂与变性环境对于蛋白质的折叠具有协同效应。

Synergistic treatment of iron sulfide laden and stabilized slops simultaneously by use of surfactant and denitrifying bacteria was studied.

对表面活性剂和反硝化细菌协同处理含硫化亚铁颗粒污油的可行性进行了研究。

Synergistic treatment of iron sulfide laden and stabilized slop s simultaneously by use of surfactant and denitrifying bacteria was studied.

对表面活性剂和反硝化细菌协同处理含硫化亚铁颗粒污油的可行性进行了研究。

The depilating composition for less thiolase process and the piling depilation method therewith features that leather blank in 100 portions, proteinase in 0.1-0.6 portion, sodium sulphide in 0.1-0.8 portion, sodium chloride in 0.1-3 portions, surfactant 0.1-1 portion and hydrogen peroxide in 0-5 portions are dissolved or dispersed in water of 7-15 portions while adding rice bran in 1-4 portions and kaolin in 0.5-3 portions to form paste mixture; and the leather blank is then brushed manually to make the mixture adhered onto the inside of the leather blank, piled with inside to inside in hot room at 15-35 deg.c for 20-30 hr, and depilated manually after the hair becomes loose.

一种少硫酶脱毛组合物及其堆置脱毛方法，其特点是将皮坯100份、蛋白酶0.1-0.6份、硫化碱0.1-0.8份、氯化钠0.1-3份、表面活性剂0.1-1.0份和过氧化氢0-5份依次溶入或分散于水7-15份中，并加入米糠1-4份和高岭土0.5-3份的混合物调至糊状，用毛刷手工涂于浸水去肉后的皮坯的肉面上，要求涂糊均匀，然后肉面对肉面堆置，放入温度为15-35℃的温房内，时间约为20-30小时，待毛松动，进行手工推毛。

There were two kinds of pores in the materials which were proved to be packed ordering and disordering respectively. The former was formed by the templating function of surfactant micelles and the latter was considered to be the inter-particle pore that formed by the aggregation of colloid particles during the sol-gel process.

材料中两种类型的孔道分别呈有序排列和无序排列的特征，前者是由表面活性剂胶束的模板作用在胶体颗粒内部的造孔作用形成的，而后者则是在溶胶-凝胶过程中胶体粒子之间发生相互聚集而形成的颗粒间孔。

One of other kinds of surfactant is used as the auxiliary emulsifying agent.

引 言 燃油掺水燃烧是充分利用能源和减少环境污染的一项重要技术。

If a specially appionted solvent is used in esterifying reaction, APG to solvent will be 1 to 0.6-0.7. And then, the final yield is more than 70％,and its properties indicate that it is a better anion surfactant. Such can pave the new way for the application of APG.

若酯化反应选一合适的溶剂，则APG：溶剂为1∶0.6-0.7时，阴离子活性物含量可达70％以上，测试其性能，表明为比较优良的阴离子表面活性剂，这样就为APG的应用开辟了新途径。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。