SURFACE DYNAMIC FRICTION OF POLYMER GELS

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SURFACE DYNAMIC FRICTION OF POLYMER GELS

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- SURFACE DYNAMIC FRICTION OF POLYMER GELS
- SURFACE DYNAMIC FRICTION OF POLYMER GELS
- 高分子科学（英文版） 2000年18卷第3期页码：271-275
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- 纸质出版：2000-06-20
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SURFACE DYNAMIC FRICTION OF POLYMER GELS[J]. 高分子科学（英文版）, 2000,18(3):271-275.

SURFACE DYNAMIC FRICTION OF POLYMER GELS[J]. 2000, 18(3): 271-275.
SURFACE DYNAMIC FRICTION OF POLYMER GELS[J]. 高分子科学（英文版）, 2000,18(3):271-275. DOI：

SURFACE DYNAMIC FRICTION OF POLYMER GELS[J]. 2000, 18(3): 271-275. DOI：

摘要

The sliding friction of various kinds of hydrogels has been studied and it was found that the frictional behaviors ofthe hydrogels do not conform to Amonton's law F=μW which well describes the friction of solids. The frictional force andits dependence on the load are quite different depending on the chemical structures of the gels

surface properties of theopposing substrates

and the measurement condition. The gel friction is explained in terms of interracial interaction

either attractive or repulsive

between the polymer chain and the solid surface.According to this model

the friction is ascribed to the viscous flow of solvent at the interface in the repulsive case.In the attractive case

the force to detach the adsorbing chain from the substrate appears as fricition.The surface adhesion between glass particles and gels measured by AFM showed a good correlation with the friction

which supported the repulsion-adsorption model proposed by the authors.

Abstract

surface properties of theopposing substrates

and the measurement condition. The gel friction is explained in terms of interracial interaction

either attractive or repulsive

between the polymer chain and the solid surface.According to this model

the friction is ascribed to the viscous flow of solvent at the interface in the repulsive case.In the attractive case

the force to detach the adsorbing chain from the substrate appears as fricition.The surface adhesion between glass particles and gels measured by AFM showed a good correlation with the friction

which supported the repulsion-adsorption model proposed by the authors.

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