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storm8306木虫 (正式写手)
会飞的羽毛
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麻烦高手帮忙修改一下
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麻烦高手帮忙修改一下下面三段文字，主要是语法和句子的连贯性，小弟在此先谢过了。 可追加金币  1wt% surfactant solutions with different amount of calcium chloride were prepared and then those tubes were put in water bath at 60℃ for 24h. In the end, centrifugation was at 3000r/min for 1h with prespecified amount of solution, and then observes whether to have new phase to appear. The maximum amount of calcium chloride with which no new phase separates out was taken as standard that evaluates the calcium-tolerant stability of surfactant. 将含有不同量氯化钙的表面活性剂溶液在60度水浴放置24消失，然后离心观察是否有新相析出，以不析出新相的最大氯化钙量作为衡量表面活性剂耐钙稳定性的标准。 It may be due to the formation of an “electronegative cavity” at the same time when colloid aggregation was formed [10]. As a result that calcium ions were wrapped in the inside of “electronegative cavity” and the electronegative interface of colloid didn’t change, so the colloid’s inverse structures and then formation of the deposition were avoided [11]. With the increasing of length of hydrophobic chain, the cmc of CnE3SO3 decreases, the micelle aggregation number increases, the number and size of “electronegative cavity” also increase, the capability for calcium-tolerant has a relevant increasing. 这可能是由于在胶束形成的同时形成了一个负电空穴，钙离子被包裹在负电空穴内，而胶束表面电荷不发生改变，从而避免了胶束结构反转形成沉淀。随着疏水连的增长，他的CMC降低，胶束聚集数增大，负电空穴的数目和大小都有所增加，因此耐钙稳定性也有一个相应的增加。 An addition of strong electrolyte can accelerate surfactants’ transfer from water phase to oil phase, with the result that the diffusion rate of ionic surfactant from the inner of solution to the interface rise, the electric double layer was compressed, surfactant molecules rank much more tightly, as a result that causes the emulsion stability to strengthen. However, with the further increase in salinity, the thinner the diffuse electric double layer was compressed, the more the possibility of flocculation-coalescence was, and then the more instable the emulsion was. 强电解质的加入加速了表面活性剂从水相向油相的转移，导致离子表活剂扩散速率的增大，双垫层被压缩，表活剂的排列更加紧密，因此乳状液的稳定性得到加强。但是随着盐度的进一步增大，双垫层被压缩的越来越薄，发生絮凝聚集的可能性越来越大，乳状液也就变得越来越不稳定。 [ Last edited by storm8306 on 2009-10-10 at 14:04 ] |
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storm8306(金币+15,VIP+0):谢谢，但我想问一下第一段那样没有主语可行吗？ 10-10 17:40
storm8306(金币+15,VIP+0):谢谢，但我想问一下第一段那样没有主语可行吗？ 10-10 17:40
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应该注意句子的主语选择。很多句子是没有语法错误，但前后要统一书写人称。少量词语搭配错语 Prepare 1wt% surfactant solutions with different amount of calcium chloride and allow to keep in in water bath at 60℃ for 24h.Obtain prespecified amount of solution after centrifugation at 3000r/min for 1h, and then observe the filtrate whether new phase appears. The maximum amount of calcium chloride with which no new phase separates out was considered as evaluation standard of the calcium-tolerant stability of surfactant. It may be due to the formation of an “electronegative cavity” at the same time when colloid aggregation was formed [10]. calcium ions were wrapped in the inside of “electronegative cavity” and the electronegative interface of colloid didn’t change, so tha the colloid’s inverse structures and formation of the deposition were avoided [11]. With the increasing of length of hydrophobic chain, the cmc of CnE3SO3 decreased, the micelle aggregation number as well as the number and size of “electronegative cavity” also increased, and therefor the calcium-tolerant stability was improved to some degree. surfactants were accelerated to transfer from water phase to oil phase with An addition of strong electrolyte so that the diffusion rate of ionic surfactant from the inner of solution to the interface increased, , the electric double layer was compressed, surfactant molecules were arranged much more tightly,and finally the emulsion stability could be improved. However, with the further increase in salinity, the thinner the diffuse electric double layer was compressed, the more the possibility of flocculation-coalescence was, and then the more instable the emulsion was. |
2楼2009-10-10 16:08:15
in order to observe whether there were any new phases precipitating out,
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storm8306(金币+5,VIP+0):谢谢 10-11 18:37
storm8306(金币+5,VIP+0):谢谢 10-11 18:37
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solution samples were prepared by dissolving different amount of calcium chloride into 1wt% surfactant solution. All samples were put in a water bath at 60℃ for 24h, and then centrifuged at 3000r/min for 1h. The maximum amount of calcium chloride AT which no new phase was separated out was taken as a standard that evaluates the calcium-tolerant stability of surfactant. It (may be) is due to the reason that the formation of a colloid aggregation will at the same time incur the formation of an “electronegative hole”[10]. A calcium ion can be buried inside of this “electronegative hole” while the distribution of electric charges on the surface of the colloid doesn’t change. Therefore, the formation of the colloid’s inverse structure, which would result in precipitation, was avoided [11]. Moreover, with the length increasing of a hydrophobic chain, the cmc of CnE3SO3 decreased and the number of micelle aggregations increased. Both number and size of “electronegative holes” were thus increased. As a consequent, the calcium-tolerant stability was correspondingly enhanced. Adding of strong electrolyte to the solution can accelerate surfactants’ transfer from a water phase to an oil phase, which results in the increase of the diffusion rate of ionic surfactant from solution to interfaces. The electric double layers of diffusion are thus compressed and surfactant molecules are even much densified. Therefore, the emulsion stability is improved. However, with the further increase of electrolyte ( it is weird to use "in salinity" here), the electric double layers of diffusion will be further compressed, which will decrease the wall thickness of the double layers. The possibility of incurring flocculation coalescence will thus become more and more high so that the emulsion will become more and more unstable. seems all done! good luck. will help your proofreading again when having time. [ Last edited by bote on 2009-10-12 at 02:48 ] |
3楼2009-10-10 19:45:49
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5楼2009-10-11 11:58:44
storm8306
木虫 (正式写手)
会飞的羽毛
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6楼2009-10-11 19:47:48
storm8306
木虫 (正式写手)
会飞的羽毛
- 应助: 18 (小学生)
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7楼2009-10-16 09:24:28
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