surface active agent 中文意思是什麼

surface active agent 解釋
表面活性劑;表面活化劑
  • surface : n 1 表面;地面;水面;廣場,空地。2 外觀,外表,皮毛。3 【幾】面;切口;【航空】翼面。adj 表面的...
  • active : adj 1 活動的,有活動力的;【生物學】活性的;【電學】有功的;【無線電】有源的;【物理學】放射性的...
  • agent : n 1 行為者,動作者;【語法】主動者。2 原因;動因;作用物,(作用)藥劑。3 代理人,代辦人;代理商...
  1. Pvp polyethylene pyrrole alkane ketone whether one physiology have similar human plasma high polymer of albumen, the best one in the ion surface - active agent of right and wrong

    Pvp (聚乙烯吡咯烷酮)是一種生理學上類似人體血漿蛋白的高分子聚合物,是非離子表面活性劑中最好的一種。
  2. The experimental results show that the cycle of the mother liquid increases the yield of the product, the seed crystal can improve long - diameter ratio remarkably, the proper additive reduces the speed of crystal growth and make size distribution homogenize. through appending different seed crystal and bivalent lead at one time, we may receive when the content of the seed crystal is 0. 075 % and pb2 + is 20 - 50ppm, the yield of the basic magnesium chloride whisker is high and crystal shape is good. the surface active agent can improve dispersion performance of the basic magnesium chloride whisker

    研究結果表明:母液循環可以提高堿式氯化鎂晶須的產率;添加晶種可明顯的改善晶形;合適的添加劑可以降低晶體生長速度並可提高晶須的粒徑分佈;而同時加入不同用量的晶種和pb ~ ( 2 + ) ,試驗結果表明晶種含量在0 . 075 , pb ~ ( 2 + )在20 50ppm時,晶須的產率高,晶形好;表面活性劑對產品的分散性能有所改進。
  3. Usage : used as the gentle surface - active agent of cleansing foam, body shower foam, soft soap and fancy soap

    主要用途:洗面奶、沐浴露、洗手液、香皂中的溫和表面活性劑。
  4. Surface - active agent that this kind of product uses, for instance : gather ethylene glycol, ren base phenol and gather oxygen and ethylene ether, gather the amine salt in alcohol ether, polyvinyl alcohol, alkyl sulphonate, season etc.

    該類產品使用的表面活性劑如:聚乙二醇、壬基酚聚氧乙烯醚、聚醇醚、聚乙烯醇、烷基磺酸鹽、季胺鹽等。
  5. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ,其分子量恢復到23kd ,證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現:三種酶的最適ph差異不大, xynb和xynba均為5 . 2 , xynbb為5 . 0 ; xynb和xynba的最適溫度均為60 , xynbb降為50 :在耐熱性上, xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ; xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ,明顯低於原酶的比活2814 . 45iu mg ; xynb和xynba的km值相當,分別為21 . 56 ( g kg )和20 . 87 ( g kg ) ,而xynbb的km值較大為27 . 10 ( g kg ) ; xynba和xynbb的vmax相差不大,分別為4568 mol mg ? min和5329 mol mg ? min ,明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性,對胃蛋白酶和胰蛋白酶有很好的抗性,且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現:以樺木木聚糖為底物時,酶解產物主要為木三糖和木四糖,含量分別為68 . 43和16 . 50 ,另外還含有11 . 79的木二糖;以玉米芯木聚糖為底物時,酶解產物主要為木二糖和木三糖,含量分別為81 . 78和11 . 55 。
  6. Meanwhile, fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained. function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits, and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off, but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits, and improve the surface quality of the deposits and the bath stability

    闡述了鍍液中各組分的作用:絡合劑能有效地改變銅、錫的電位,促使初期的置換反應順利進行;還原劑能加快化學反應速度,對反應動力學有積極的促進作用;抗氧化劑能有效地防止鍍液中sn ~ ( 2 + )的氧化;添加劑a能提高鍍液的穩定性,添加劑b對鍍層能有細化和光亮作用,擴大了鍍層光亮區的范圍;添加劑c作為平滑劑,不僅能增強鍍層表面的平整性,而且能提高鍍液的分散能力;表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題,提高了鍍層的表面質量和鍍液的穩定性。
  7. In varous determination systems, the potassium bromate - organicdye system and the system based on nitrosation reaction arc the main systems for determination of nitrite by fluorophotometry in the present time, and using the surface active agent to enhance determination sensitivity is the research content and one of directions

    在各種測定體系中,溴酸鉀有機染料體系和基於亞硝化反應體系是目前熒光光度法測定亞硝酸根的主要體系,利用表面活性劑提高測定的靈敏度是研究內容和方向之一。
  8. 4 for the full disperse of pigment, the surface active agent should be added, but it should be add after the polar active agent, otherwise it will affect the disperse of organic clay

    4為了使顏料充分分散,常需加入表面活化劑,但必須是加入機型活化劑以後加入,否則影響有機土的充分分散。
  9. Sailuluo, carboxyl methyl cellulose that, nylon series products lu : yisuan, surface active agent, bringing alternative amides size, polyimide, plastics processing. mode of operation : manufacturing

    賽璐珞,羧甲基纖維素納,尼龍系列產品,氯乙酸,表面活性劑,聚碸酰胺漿液,聚酰亞胺,塑料加工。經營方式:製造。
  10. The effect of gas rates, liquid flow - rates, downcomer width, weir height and the addition of surface active agent on the liquid mean residence time, t, effective diffusion coefficient, de, and froth height, hf were studied. results obtained showed that for two systems, the t in the downcomer of ctst plate is 20 - 50 % smaller than that of fl valve plate, and the de is 40 - 70 % smaller than that of fl valve plate

    通過對氣速、液體流量、降液管寬度、堰高和表面活性劑加入的影響進行分析得出下面結論:在相同的操作條件下,對于兩種物系, ctst塔板降液管的液體停留時間比f1浮閥塔板的約小20 50 ,有效擴散系數比f1浮閥塔板的小40 70 ,泡沫高度低110 150mm 。
  11. Surface - active agent these play carrier and help function that dissolve in bending over in iodine, complexing ability of them it helps to be very much ideal to dissolve result, these kind of iodine there are quite a few of " existence forms of iodine " that do not possess the sterilization activation but waste of bending over, can leave yellow to dye even burn the skin at skin also at the same time

    這些表面活性劑在碘伏中起載體和助溶的作用,但是它們的絡合能力和助溶效果不太理想,這類碘伏中有相當一部分「碘的存在形態」不具備殺菌活性而白白浪費,同時還會在皮膚上留下黃染甚至灼傷皮膚。
  12. But the indefinite complex compound of forming of the iodine and way of passing complexing of surface - active agent that the iodine is bent over, so call the complexing iodine

    碘伏是碘和表面活性劑通過絡合的方式而形成的不定型絡合物,所以也叫絡合碘。
  13. During the preparation process of the solid solution, a series of effect conditions were discussed such as ph value, si / h2o, the content of ligant, the surface active agent, the aging temperature, the drying means, the drier gel calcine and their effects on the gel quality, the process of sol - gel, the granular of powder and the density of the pellets, from which the best reaction condition was found

    在制備過程中系統地研究了各種反應條件如ph值、 sal ; o 、絡合劑的添加量、老化溫度、乾燥方式、干凝膠的鍛燒方式等對溶膠「的質量、溶膠凝膠過程、粉體粒度及燒結體密度等的影響,確定了最佳反應條件:三、以li 。石i 。 。
  14. This indicates that surface active agent can suppress inhomogeneous deposition on active center of electrode surface, where specific absorption takes place

    說明這些表面活性劑通過在電極表面活性中心的特性吸附,能夠抑制鋅在這些位置的非均勻沉積,起到抑制鋅枝晶的作用。
  15. A study on viscosity depression effect of liaohe ultra - thick crude oil with surface active agent

    遼河油田稠油井的完井工藝應用研究
  16. 2 resin with bad wetness systems, and non - thixotrpic grind materials. operate as following process : add the paint material and the solvent - add surface active agent if adopt - add the pigment stir, make it disperse or grind to the needed granularity

    2對于非觸變性研磨性磨料,潤濕性差的樹脂體系操作如下:加油漆和溶劑混合加入表面活化劑如果採用加入顏料攪拌分散或研磨分散到所需細度加預凝膠攪拌分散至所需細度稀釋至所需粘度。
  17. 1 resin with bad wetness systems such as epoxy resin, polyester, alkyd, acrylic resin, use compound with the surface active agent, and the thixotropic grind materials can be acceptable. operate as following process : add paint material all kind of resin and the solvent - add the organic bentonite pre - gel, stir enough - add the pigment, stir and disperse enough - dilute

    1潤濕性比較差的環氧,聚酯,短油酸樹脂,丙烯酸樹脂等與表面活化劑合用,且觸變性研磨料科被接受的情況下,按照以下步驟操作:加油漆和溶劑混合加入有機預凝膠充分攪拌分散加入顏料充分攪拌分散稀釋。
  18. 1 while use surface activator and disperse pigment, system can grow to be thixotrpic structure during stir. operate according to following steps : add the paint material and solvent then mix - add the organic bentonite powder, stir with 10 minutes - add the polar active agent, stir 5 - 10 minutes - add surface active agent - add the pigment, stir and disperse to the needed granularity - dilute to the needed viscosity

    當使用表面活化劑以及分散顏料和攪拌下可發展觸變體系時,操作如下:溶劑和展色劑混合加入有機膨潤土粉末混合10分鐘加入極性活化劑攪拌5 - 10分鐘加入顏料攪拌分散至所需細度稀釋至所需粘度。
  19. 2 resin with bad wetness systems such as epoxy resin, polyester, alkyd, acrylic resin, operate as the following process : add the solvent - add organic bentonite powder mix and stir 10 minutes, wet enough - add the polar active agent mix and stir 5 - 10 minutes, make it swell and disperse - add resin and stir - add the surface active agent - add pigment, stir and disperse to the needed granularity - dilute to the needed viscosity main points for use methods

    2當使用潤濕性差的樹脂系統環氧,聚酯,短油酸樹脂,丙烯酸樹脂操作如下:加入溶劑混合加入有機膨潤土粉末攪拌混合10分鐘,使其完全潤濕加入極性活化劑攪拌混合5 - 10分鐘,使其膨脹,分散加入樹脂混合攪拌加入表面活化劑攪拌分散至所需細度稀釋至所需粘度。
  20. In this paper, nanometer perovskite - type catalysts la1 - xsrxmno3 are prepared by citric acid sol - gel method that add surface - active agent

    本研究採用添加表面活性劑的檸檬酸溶膠-凝膠法制備了納米鈣鈦石型氧化物催化劑la1 - xsrxmno3 。
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