EFFECT OF SURFACE-TREATMENT ON THE HAMAKER CONSTANT OF INTERMEDIATE MODULUS CARBON-FIBERS

被引：12

作者：

MORRA, M ^{[1
]}

OCCHIELLO, E ^{[1
]}

GARBASSI, F ^{[1
]}

机构：

[1] IST GUIDO DONEGANI SPA,4 VIA FAUSER,I-28100 NOVARA,ITALY

来源：

COLLOID AND POLYMER SCIENCE | 1992年 / 270卷 / 01期

关键词：

CARBON FIBERS; HAMAKER CONSTANT; CONTACT ANGLES; SURFACE-INTERFACE ENERGETICS; LIFSHITZ-VAN DER WAALS COMPONENT;

D O I：

10.1007/BF00656930

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Hamaker constant of unsized intermediate modulus carbon fibers was evaluated by contact angle measurement following the Fowkes theory of interfacial energetics. The effects of a surface treatment (performed by the manufacturer) and an oxygen plasma treatment (performed by us), both of oxidizing nature, proved to slightly increase the value of the Hamaker constant to a level that enhanced by about 9% the Lifshitz-van der Waals contribution to the theoretical adhesion force between the fiber and an epoxy matrix. A possible explanation of the observed increase of the Hamaker constant is the higher contribution to the overall Lifshitz-van der Waals interaction of Keesom (orientation) and Debye (induction) forces.

引用

页码：58 / 63

页数：6

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