ABSTRACT
I. Introduction 60
II. Concept and General Model 61 A. Normal force 65 B. Mechanical behavior of junctions 65 C. Number of asperities in contact 65 D. Other factors 65
III. Experimental Studies of the Effects of Structural, Morphological, and Environmental Factors 66 A. Methods 67 B. Results 69
IV. Frictional Behavior of Human Hair 75 A. Experimental details 76 B. Results 77
V. The Role of Friction in Surgical Sutures 82 A. Methods 82 B. Results 83
VI. Frictional Behavior of Fabrics 86 A. Characterization of behavior 87 B. Experimental 87 C. Results 88
VII. Concluding Remarks 90
References 91
I. INTRODUCTION Friction is an important property of textile materials that governs the quality and efficiency of processing and the performance of products. Although widely stud ied, it is still considered to be one of the most complex, least understood, and least controllable of the properties.
