dispersive ability meaning in English
分散能力
Examples
- 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
阐述了镀液中各组分的作用：络合剂能有效地改变铜、锡的电位，促使初期的置换反应顺利进行；还原剂能加快化学反应速度，对反应动力学有积极的促进作用；抗氧化剂能有效地防止镀液中sn ~ ( 2 + )的氧化；添加剂a能提高镀液的稳定性，添加剂b对镀层能有细化和光亮作用，扩大了镀层光亮区的范围；添加剂c作为平滑剂，不仅能增强镀层表面的平整性，而且能提高镀液的分散能力；表面活性剂较好地解决了化学镀过程中汽泡在镀件表面聚集的问题，提高了镀层的表面质量和镀液的稳定性。 - When sn2 + concentration in the bath is lower , sn2 + activity is not enough causes slow deposition rate and slow growth rate of crystallizing nucleus , so crystalline granularity deposited is smaller ; when sn2 + concentration in the bath is higher , the dispersive ability of the bath decreases and the surface quality of the deposits sets worse
镀液中sn ~ ( 2 + )浓度较低时，离子活度不够，沉积速度慢，晶核成长速度慢，使沉积的晶粒粒度较小； sn ~ ( 2 + )浓度过高，镀液分散能力降低，使镀层的表面质量下降。