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Adhesive films

The tenn tribology translates literally into the study of nibbing . In modem parlance this field is held to include four phenomena adhesion, friction, lubrication and wear. For the most part these are phenomena that occur between pairs of solid surfaces in contact with one another or separated by a thin fluid film. Adhesion describes the resistance to separation of two surfaces in contact to while friction describes their tendency to resist shearing. Lubrication is the phenomenon of friction reduction by the presence of a fluid (or solid) film between two surfaces. Finally, w>ear describes the irreversible damage or defonnation that occurs as a result of shearing or separation. [Pg.2740]

Film Adhesion. The adhesion of an inorganic thin film to a surface depends on the deformation and fracture modes associated with the failure (4). The strength of the adhesion depends on the mechanical properties of the substrate surface, fracture toughness of the interfacial material, and the appHed stress. Adhesion failure can occur owiag to mechanical stressing, corrosion, or diffusion of interfacial species away from the interface. The failure can be exacerbated by residual stresses in the film, a low fracture toughness of the interfacial material, or the chemical and thermal environment or species in the substrate, such as gases, that can diffuse to the interface. [Pg.529]

Table 1 contains the metal-to-metal engineering property requirements for Boeing Material Specification (BMS) 5-101, a structural film adhesive for metal to metal and honeycomb sandwich use in areas with normal temperature exposure. The requirements are dominated by shear strength tests. Shear strength is the most critical engineering property for structural adhesives, at least for the simplistic joint analysis that is commonly used for metal-to-metal secondary structure on commercial aircraft. Adhesive Joints are purposefully loaded primarily in shear as opposed to tension or peel modes as adhesives are typically stronger in shear than in Mode I (load normal to the plane of the bond) loading. [Pg.1146]

Simply bonding a stiffener to a panel with adhesive is certainly a very feasible and natural procedure with typical composite structure construction. We have not discussed any procedure for joining parts except co-curing. Alternatively, to use film adhesive for bonding parts together, we simply cut a sheet or film of adhesive to the proper size, place it between the two parts that we wish to bond together, and then go through a cure cycle that causes the adhesive to adhere to both the stiffener and to the panel itself. We can also mechanically fasten any stiffener we like to a panel. [Pg.405]

Polyquinoxalines Stable in air at 500°C (932°F) tough, somewhat flexible resins make film, adhesive. [Pg.320]

Film adhesives, 25 582-583. See also Monolayer blown-film extrusion Multilayer blown-film extrusion Multilayer cast-film extrusion... [Pg.358]

These differences in film morphology were also reflected as differences in film formation conditions, film adhesion, and in electrochemical properties. The pyrazoline beads readily formed films from solvents such as benzene. For the phenoxy TTF system, however, only CH2Cl2 was effective in forming films. In general, the TTF cross-linked polymers were found to be less adherent to the metallized substrates than the pyrazoline cross-linked polymers. Electro-chemically, it was found that the pyrazoline films showed complete activity after one potential sweep. The TTF polymer films, on the other hand, required from 5 to 20 cycles to reach full electrochemical activity as evidenced by a constant voltammogram with cycling. Furthermore, it was observed that the TTF polymer films were much less electroactive than the pyrazoline materials as shown by optical densities and total coulombs passed which were several times less for the TTF systems. [Pg.446]


See other pages where Adhesive films is mentioned: [Pg.232]    [Pg.233]    [Pg.234]    [Pg.540]    [Pg.369]    [Pg.1137]    [Pg.1140]    [Pg.1145]    [Pg.1151]    [Pg.1154]    [Pg.1156]    [Pg.1162]    [Pg.1171]    [Pg.1171]    [Pg.1177]    [Pg.422]    [Pg.70]    [Pg.100]    [Pg.122]    [Pg.410]    [Pg.596]    [Pg.34]    [Pg.415]    [Pg.417]    [Pg.417]    [Pg.420]    [Pg.423]    [Pg.424]    [Pg.508]    [Pg.124]    [Pg.553]   
See also in sourсe #XX -- [ Pg.64 ]




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Adhesion and mechanical properties of thin films examples

Adhesion bonded films

Adhesion diamond-like carbon films

Adhesion of DLC Films

Adhesion of metal films

Adhesion of thin films

Adhesive film-supported

Adhesive film-unsupported

Adhesives nitrile-phenolic film adhesive

Adhesives, multilayer film composite

Adhesives, multilayer film composite structures

Aerospace film adhesives

Anisotropic conductive film adhesives

Binders film adhesion

Brittle film adhesion

Ceramic films adhesion

Characterization, film adhesion testing

Conductors, thick-film adhesion

Conductors, thick-film adhesion mechanisms

Dry film adhesives

Epoxies, with thin-film adhesives

Epoxy adhesive film

Epoxy resin film adhesive

Film Formation with Adhesion Promoters

Film adhesion

Film adhesion

Film adhesives applications

Film adhesives chip stacking

Film adhesives durability

Film adhesives nylon

Film and Tape Polyurethane Adhesives

Film or preform adhesives

Film-capsule adhesion

Film-tablet adhesion

Film/coating properties adhesion

Film/substrate adhesion

Films or Textiles Pre-Coated with a Dry Adhesive

Formulation film adhesives

Mechanical and adhesion testing methods of thin films

Poly films platelet adhesion

Polyimide , with thin-film adhesives

Polyurethanes with thin-film adhesives

Properties film adhesives

Properties of Film Adhesives

Solvents film adhesives

Thin film adhesion

Thin films adhesive-bond-strength measurement

Thin films, biomedical applications adhesion

Vapor permeable adhesive films

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