Adhesives and adhesive joint

Schonhorn, H., and Sharpe, L., Surface Energetics, Adhesion, and Adhesive Joints II, Journal of Polymer Science PartB Polymer Letters, vol. 2, no. 7, 1964, p. 719. 

The Effect of Polymer Surface Morphology on Adhesion and Adhesive Joint Strengths... 

There are, of course, an infinite number of m values that can be chosen to satisfy Equation 13.46. The determination of m is governed by a basic assumption that the entire energy supplied to the specimen is concentrated on the crack line for crack extension. Thus the choice of m is such that the bending stresses on the adherend are minimized. This, in turn, depends on the modulus of the adherends relative to the adhesive. This necessitates an empirical determination of the appropriate m value through a procedure known as compliance calibration. Figure 13.37 is a schematic of the specimen geometries of TDCB for the determination of Gj, for bulk adhesives and adhesive joints. 

Table 6.2. Recommended mechanical properties of adhesive and adhesive joints for strengthening... 

Sharpe, Louis H., Schonhom, Harold (1964), Surface Energetics, Adhesion and Adhesive Joints, Advances in Chemistry 43, 189. 

Schonhom, Harold, Ryan, Frank W. (1969), "Effect of Polymer Surface Morphology on Adhesion and Adhesive Joint Strength. II. FEP Teflon and Nylon 6", J. Polym. Sci. 7 (Part A-2), 105-111 (Hara, K., Schonhom, H. (1970), "Effect on Wettability of FEP Teflon Surface Morphology", J. Adhesion 2, 100-105. 

Several papers by Kendall treated the subject of adhesion rather explicitly with simple models of mechanics. Andrews and Kinloch attempted to separate "adhesion" and "adhesive joint strength" and established that the intrinsic failure energy is close to the work of adhesion when pure interfacial failure occurs. Kloubek attributed the interaction of polar forces to the contribution of the work of adhesion. The effect of surface energetics and wetting on adhesion has been summarized by Kaelble, Mittal, and Zisman . ... 

H. Schonhorn and H. L. Frisch, "Environmental Aspects of Adhesion and Adhesive Joint Strength", J. Poly. Sci., Poly. Phys., U, 1005 (1973). 

Schonhom H, Sharpe LH (1965) Surface energetics, adhesion, and adhesive joints. III. Surface tension of molten polyethylene. J Polym Sci A-2 3 569-573 Lofgren H, Neuman RD, Scriven LE, Davis HT (1984) Laser light-scattering measurements of interfacial tension using optical heterodyne mixing spectroscopy. J Colloid Interface Sci 98 175-183... 

The interrelation between the thermodynamic stability of filled polymer alloy in the melt and thermodynamic work of adhesion and adhesion joint strength was proven in polymer mixture of polyethylene and polyurethane filled with kaolin (Figure 7.20). The influence of component miscibility on the critical surface tension, Yc, and the adhesive properties was studied. ... 

In the preceding sections, a number of tests have been described that are intended to provide information on the strength of adhesive joints. There are a number of other standard tests intended to provide other information on adhesives and adhesive joints that might relate to durability. A few of these standard tests will be reviewed briefly here. 

Standard test methods are available for the determination of adhesive and adhesive joint properties. These standard tests facilitate testing that can be duplicated and results that can be reported in consistent and understandable ways in different laboratories and settings. 

Schonhom H, Sharpe LH (1965) Surface energetics, adhesion, and adhesive joints. III. Surface tension of molten polyethylene. J Polym Sci A 2 3 569 573... 

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