Polymer Interface and AdhesionPoly mer Interface and Adhesion provides the critical basis for further advancement in thisfield. Combining the principles of interfacial science, rheology, stress analysis, and fracturemechanics, the book teaches a new approach to the analysis of long standing problemssuch as: how is the interface formed; what are its physical and mechanical properties;and how does the interface modify the stress field and fracture strength of the material.The book offers many outstanding features, including extensive listings of pertinent references,exhaustive tabulations of the interfacial properties of polymers, critical reviews ofthe many conflicting theories, and complete discussions of coupling agents, adhesion promotion,and surface modifications. Emphasis is placed on physical concepts and mechanisms,using clear, understandable mathematics.Polymer Interface and Adhesion promotes a more thorough understanding of the physical,mechanical, and adhesive properties of multiphase, polymer systems. Polymer scientistsand engineers, surface chemists, materials scientists, rheologists, as well as chemical andmechanical engineers interested in the research, development or industrial applications ofpolymers, plastics, fibers, coatings, adhesives, and composites need this important newsource book. |
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Page 4
... decrease of Gibbs free energy per unit area when an interface is formed from two individual surfaces. Thus, a0a0 Figure 1.2. Work of adhesion. (a) CAPTIVE BUBBLE (b)PENDANT DROP (c)SESSILE DROP (d)EMERGING BUBBLE P. the greater the ...
... decrease of Gibbs free energy per unit area when an interface is formed from two individual surfaces. Thus, a0a0 Figure 1.2. Work of adhesion. (a) CAPTIVE BUBBLE (b)PENDANT DROP (c)SESSILE DROP (d)EMERGING BUBBLE P. the greater the ...
Page 8
... decrease with increased curvature. Tolman [15] proposed. vM. )'1. where y® is the normal surface tension and t is the thickness of the surface layer (on the order of 10"8 cm). If t/R = 0.1, y/y® is 0.83. On the other hand, Benson and ...
... decrease with increased curvature. Tolman [15] proposed. vM. )'1. where y® is the normal surface tension and t is the thickness of the surface layer (on the order of 10"8 cm). If t/R = 0.1, y/y® is 0.83. On the other hand, Benson and ...
Page 9
... decrease of surface tension due to vapor adsorption. The work of adhesion is thus given by 7re W rLVySL = YL-7(1v + COS 0) + TT (1.33) e where 0 is the equilibrium contact angle of the liquid (condensed vapor) on the substrate; see ...
... decrease of surface tension due to vapor adsorption. The work of adhesion is thus given by 7re W rLVySL = YL-7(1v + COS 0) + TT (1.33) e where 0 is the equilibrium contact angle of the liquid (condensed vapor) on the substrate; see ...
Page 10
... decrease in free energy is XLS XS XLV XSL (1.36) where Als is the spreading coefficient of a liquid (L) on a substrate (S). Applying Eqs. (1.17) and (1.18) gives = *LS W a - W cL T (1.37) where Wa is the work of adhesion and Wcl is the ...
... decrease in free energy is XLS XS XLV XSL (1.36) where Als is the spreading coefficient of a liquid (L) on a substrate (S). Applying Eqs. (1.17) and (1.18) gives = *LS W a - W cL T (1.37) where Wa is the work of adhesion and Wcl is the ...
Page 19
... decrease the hysteresis [44,45]. The height of energy barrier for a model system is plotted as a function of contact angle in Figure 1.11. The two horizontal lines represent two different drop energy values. The intersections of the ...
... decrease the hysteresis [44,45]. The height of energy barrier for a model system is plotted as a function of contact angle in Figure 1.11. The two horizontal lines represent two different drop energy values. The intersections of the ...
Contents
1 | |
29 | |
3 INTERFACIAL AND SURFACE TENSIONS OF POLYMER MELTS AND LIQUIDS | 67 |
4 CONTACT ANGLES OF LIQUIDS ON SOLID POLYMERS | 133 |
5 SURFACE TENSION AND POLARITY OF SOLID POLYMERS | 169 |
6 WETTING OF HIGHENERGY SURFACES | 215 |
7 DYNAMIC CONTACT ANGLES AND WETTING KINETICS | 235 |
8 EXPERIMENTAL METHODS FOR CONTACT ANGLES AND INTERFACIAL TENSIONS | 257 |
11 FORMATION OF ADHESIVE BOND | 359 |
12 WEAK BOUNDARY LAYERS | 449 |
13 EFFECT OF INTERNAL STRESS ON BOND STRENGTH | 465 |
14 FRACTURE OF ADHESIVE BOND | 475 |
15 CREEP FATIGUE AND ENVIRONMENTAL EFFECTS | 571 |
Calculation of Surface Tension and Its Nonpolar and Polar Components from Contact Angles by the HarmonicMean and the GeometricMean Methods | 613 |
Unit Conversion Tables | 619 |
Index | 621 |
MECHANISMS OF WETTABILITY AND BONDABILITY IMPROVEMENTS | 279 |
BASIC CONCEPT AND LOCUS OF FAILURE | 337 |
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Common terms and phrases
acid adherend adhesive adhesive bond aluminum analysis Appl applied attraction bond bond strength bondability boundary layer bulk calculated Chem chemical cohesive Colloid Interface Sci constant contact angle crack critical cross-linked curve decrease density depends diffusion discussed drop dyne/cm Effect equation equilibrium ethylene experimental failure Figure force formed fracture energy function given gives glass groups hand increases interaction interfacial interfacial tension joint layer liquid loading lower materials maximum measured mechanical melt metal methacrylate method mode molecular molecules obtained occurs oxide peel phase Phys plasma plastic plate plot polar Poly Poly vinyl polyethylene Polym polystyrene predicted Press pressure region relation rubber separation shear shown shows silane solid solution specimen spreading strength stress surface tension Table temperature tensile term theory thickness tion treated treatment unit values various versus volume weight wettability wetting York zero