| 查看: 463 | 回复: 7 | |||
| 当前主题已经存档。 | |||
youchao_007银虫 (小有名气)
|
[交流]
求助：10金币求一段有关表面活性剂的中翻英
|
||
|
非离子表面活性剂与离子表面活性剂在水溶液中形成了混合胶束，非离子表面活性剂分子插入离子表面活性剂的分表面活性离子之间，使得原来的离子表面活性剂的离子头之间的电性排斥作用减弱，亦即胶团表面的电荷密度减少，加上两种表面活性剂分子碳链之间的疏水相互作用，使得两表面活性剂之间产生了较强的净相互作用力，于是在混合溶液中比较容易形成大量交联在一起的网状溶液骨架结构。此外，由于阴离子表面活性剂端基带有大量负电荷可以与金属阳离子产生较强的静电吸引作用，为一些复杂结构的纳米粒子的合成提供了诱导骨架。 急急急急！可以站短，也可以发我邮箱youchao_007◎126.com 小弟不胜感激 |
回复此楼» 猜你喜欢
327求调剂
已经有11人回复
-
08工科求调剂290分
已经有11人回复
-
一志愿985初试354分生物调剂
已经有3人回复
-
一志愿2110，化学学硕310分，本科重点双非求调剂
已经有13人回复
-
353求调剂
已经有8人回复
-
308求调剂
已经有16人回复
-
334求调剂
已经有14人回复
-
一志愿0807 数一英一 313 有没有二轮调剂
已经有7人回复
-
复试调剂，一志愿郑州大学材料与化工289分
已经有14人回复
-
086000调剂
已经有3人回复
cooboo
木虫 (著名写手)
磁虫
- 应助: 26 (小学生)
- 贵宾: 0.5
- 金币: 1517.5
- 散金: 25
- 红花: 7
- 帖子: 1049
- 在线: 241小时
- 虫号: 64174
- 注册: 2005-04-12
- 性别: GG
- 专业: 金属材料的微观结构
|
非离子表面活性剂与离子表面活性剂在水溶液中形成了混合胶束，非离子表面活性剂分子插入离子表面活性剂的分表面活性离子之间，使得原来的离子表面活性剂的离子头之间的电性排斥作用减弱，亦即胶团表面的电荷密度减少，加上两种表面活性剂分子碳链之间的疏水相互作用，使得两表面活性剂之间产生了较强的净相互作用力，于是在混合溶液中比较容易形成大量交联在一起的网状溶液骨架结构。此外，由于阴离子表面活性剂端基带有大量负电荷可以与金属阳离子产生较强的静电吸引作用，为一些复杂结构的纳米粒子的合成提供了诱导骨架。Hybrid gel clusters of non-ionic surfactant are formed in the aqeuous solution. The molecues of non-ionic surface active agents are inserted into sub-surface active ions of the ionic surfactants, which weakens the electric repulsion between ion heads of the original ionic surfactants and consequently reduces the surface charge density of the gel clusters. Meanwhile there are dewatering interactions between carbon chains of the molecues of the two kinds of surfactant. Combination of these effects result in strong net interaction force between these two kinds of surfactants. Henceforce a great deal of reticulated solution skeletal structures that are cross linked tend to form in the hybrid solution. Additionally strong electrostatic attraction forms between the metallic cations and the anionics carrying a large number of negative charges on the terminal groups, which provides the synthesis of some nano-particles of complex structures with inducting skeleton. [ Last edited by cooboo on 2008-1-1 at 10:39 ] |
2楼2008-01-01 10:16:22
3楼2008-01-01 11:34:42
htjihm
金虫 (正式写手)
小木虫国安局长
- 应助: 0 (幼儿园)
- 金币: 595
- 帖子: 902
- 在线: 30分钟
- 虫号: 438318
- 注册: 2007-09-20
- 性别: GG
- 专业: 环境催化
|
基本同意2楼。 主要针对2楼做一些小修改，比如单复数、时态、语言简洁程度、科技语言的表达习惯等等。 非离子表面活性剂与离子表面活性剂在水溶液中形成了混合胶束，非离子表面活性剂分子插入离子表面活性剂的分表面活性离子之间，使得原来的离子表面活性剂的离子头之间的电性排斥作用减弱，亦即胶团表面的电荷密度减少，加上两种表面活性剂分子碳链之间的疏水相互作用，使得两表面活性剂之间产生了较强的净相互作用力，于是在混合溶液中比较容易形成大量交联在一起的网状溶液骨架结构。 Hybrid gel clusters of non-ionic surfactant were formed in the aqeuous solution and the molecues of non-ionic surface active agents were inserted into sub-surface active ions of the ionic surfactant, which weakened the electric repulsion between ion head of the original ionic surfactant and consequently reduced the surface charge density of the gel clusters. Meanwhile there was dewatering interaction between carbon chains of the molecues of the two kinds of surfactants and combination of these effects resulted in strong net interaction between the two kinds of surfactants. A great deal of reticulated solution skeletal structures that were formed in solution. 此外，由于阴离子表面活性剂端基带有大量负电荷可以与金属阳离子产生较强的静电吸引作用，为一些复杂结构的纳米粒子的合成提供了诱导骨架。 Additionally strong electrostatic attraction formed between the metallic cations and the anionics with a large number of negative charges on the terminal groups, which provided the synthesis of some nano-particles of complex structures with inducting skeleton. |
4楼2008-01-01 12:59:36
cooboo
木虫 (著名写手)
磁虫
- 应助: 26 (小学生)
- 贵宾: 0.5
- 金币: 1517.5
- 散金: 25
- 红花: 7
- 帖子: 1049
- 在线: 241小时
- 虫号: 64174
- 注册: 2005-04-12
- 性别: GG
- 专业: 金属材料的微观结构
5楼2008-01-01 20:17:49
cooboo
木虫 (著名写手)
磁虫
- 应助: 26 (小学生)
- 贵宾: 0.5
- 金币: 1517.5
- 散金: 25
- 红花: 7
- 帖子: 1049
- 在线: 241小时
- 虫号: 64174
- 注册: 2005-04-12
- 性别: GG
- 专业: 金属材料的微观结构
6楼2008-01-01 20:59:11
lililong0
木虫 (著名写手)
快乐的男孩
- 应助: 0 (幼儿园)
- 金币: 3940.8
- 散金: 21
- 帖子: 1762
- 在线: 22.7小时
- 虫号: 400095
- 注册: 2007-06-12
- 专业: 有机合成
| Non-ionic surfactant and surfactant in aqueous solution in the form mixed micelles, non-ionic surfactant molecules into ionic surfactant sub-surface activity between ion, making the original ionic surfactant ion between the first Xinhua rejection of the weakened role, which micelle surface charge density reduction, coupled with two surfactant molecules of carbon chain between the hydrophobic interaction, making two surfactant between the strong interaction of the net , in the mixed solution was relatively easy to form cross-linked with large mesh solution skeleton structure. In addition, as anionic surfactant-base with a large number of negative charge can be produced with metal cation strong electrostatic attractive role for the complex structure of nanoparticles synthesis induced by providing skeleton. |
7楼2008-01-02 17:10:06
youchao_007
银虫 (小有名气)
- 应助: 1 (幼儿园)
- 金币: 303.1
- 红花: 1
- 帖子: 158
- 在线: 3.6小时
- 虫号: 437536
- 注册: 2007-08-26
- 性别: GG
- 专业: 化学
8楼2008-01-04 21:01:32
100