Particle size determination of (functionalized) colloidal calcium carbonate by small angle X-ray scattering -: Relation with antiwear properties

被引：6

作者：

Delfort, B ^{[1
]}

Daoudal, B ^{[1
]}

Barré, L ^{[1
]}

机构：

[1] Inst Francais Petr, F-92506 Rueil Malmaison, France

来源：

TRIBOLOGY TRANSACTIONS | 1999年 / 42卷 / 02期

关键词：

antiwear additives; surface analytical techniques; chemical;

D O I：

10.1080/10402009908982220

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Three different colloidal calcium carbonate additives were each functionalized with dithiodiglycolic acid in order to concert 10 percent of the calcium carbonate content into the appropriate calcium carboxylate salt. The generated sulfurized calcium salts are located inside the micellar cores. Investigation of colloidal size distribution using small-angle-X-ray scattering has shown that the reaction takes place inside each micelle without modification of the general shape, and without any aggregation phenomena. Evaluation of the antiwear properties of each modified or unmodified product in a four-ball test shows that a minimum particle size is required to obtain a significant antiwear effect.

引用

页码：296 / 302

页数：7

共 28 条

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