Preparation of Standard Fine Particles for Study of Stability and %lectrophoretic mobilityy

制备%20的%20标准%20精细%20颗粒%20用于%20研究%20的%20稳定性%20和%20%电泳%20流动性y

• 批准号: 60850148
• 负责人: FURUSAWA Kunio
• 金额: $ 4.8万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60850148/
• 关键词: Electrophoresis; Stability; Zeta-potential; Standard suspension; Polymer latices; 臨界凝集濃度; 標準コロイド試料; ポリマーラテックス・コロイドの安定性; 分散凝集性; 標準コロイド; ラテックス

Simultaneous mesurements of zeta(<zeta>)-potentical flocculation concentration(c.f.c) on two polymer latex suspensions(Sample-A; Styrence/Nass copolymer latices, Sample-B; Amphoteric.polymer latices) were carried out to prepare a standard fine particle suspension and to find out the problem in these techniques.The <zeta>-potential measurements were carried out in nine laboratories using the different electrophoretic apparatus which involved a Rank Brother M-2, a Pen Kem-501, a Pen Kem-3000 and a Malvern Zetasizer-F. it appears that the data from all the laboratiories are in fairly agreement with each other, but an elevated potential supply tends to increase the slope of the <zeta> vs. pH curve near the isoelectric point of Sample-B.The c.f.c. of KNO_3, Mg(NO_3)_3 and La(NO_3)_2 and La(NO_3 )_3 on Sample-A, was determined simultaneously by a static method and the results ware compared with the value determined by the Kinetic method and the dynamic light scattering(L.S.) technique. The sequence of the value of c.f.c. is as follows; static method <L.S. technique <kinetic method. Furthermore, it is realized that in determinig the c.f.c., the solid concentration in the medium plays an effective role.

两种聚合物乳胶悬浮液（样品- a； styence /Nass共聚物乳液，样品- b；两性）上zeta（<zeta>）电位絮凝浓度（c.f.c）的同时测定。采用聚合物乳液制备了标准的细颗粒悬浮液，并找出了这些技术中存在的问题。采用Rank Brother M-2、Pen ken -501、Pen ken -3000和Malvern Zetasizer-F等不同的电泳设备，在9个实验室进行了<zeta>电位的测定。所有实验室的数据似乎都相当一致，但电位供应升高往往会增加样品b等电点附近<zeta> vs. pH曲线的斜率。用静态法同时测定了样品a上KNO_3、Mg(NO_3)_3、La(NO_3)_2和La(NO_3) _3的c.f.c.，并与动力学法和动态光散射法测定的结果进行了比较。c.f.c.的值顺序如下：静态方法< l.s.s技术<动力学法。此外，还认识到在测定cfc时，介质中的固体浓度起着有效的作用。

项目成果

S.USUI;Y.IMAMURA;H.SASAKI: Journal of Colloid and Interface Science. 118. 335-342 (1987)

S.USUI；Y.IMAMURA；H.SASAKI：胶体与界面科学杂志。

M.OZAKI;H.SUZUKI;K.TAKAHASHI;E.Matijevic: Journal of Colloid and Interface Science. 113. 76-80 (1986)

M.Ozaki；H.SUZUKI；K.TAKAHASHI；E.Matijevic：胶体与界面科学杂志。

Shinnosuke Usui: Colloids and Surfaces. 18. 53-66 (1986)

臼井新之助：胶体和表面。

Kazuhiko KANDORI, Kijiro KON-NO and Ayao KITAHARA: "Dispersion Stability of Nonaqueous Calcium Carbonate Dispersion Prepared in Water Core of W/O Microemulsion" Journal of Colloid and Interface Science. 115. 579-582 (1987)

Kazuhiko KANDORI、Kijiro KON-NO 和 Ayao KITAHARA：“W/O 微乳液水核中制备的非水碳酸钙分散体的分散稳定性”胶体与界面科学杂志。

Kunio FURUSAWA: Kagaku Dojin. Elecltrokinetic Phenomena, 43-68 (1986)

古泽邦夫：化学同人。