Type Adhesives

Adhesives. Acryhc emulsion and solution polymers form the basis of a variety of adhesive types. The principal use is in pressure-sensitive adhesives, where a film of a very low T (<—20 " C) acrylic polymer or copolymer is used on the adherent side of tapes, decals, and labels. Acrylics provide a good balance of tack and bond strength with exceptional color stabiUty and resistance to aging (201,202). AcryUcs also find use in numerous types of constmction adhesive formulations and as film-to-film laminating adhesives (qv). [Pg.172]

Table 1 provides the approximate load bearing capabiUties of various adhesive types. Because the load-bearing capabiUties of an adhesive are dependent upon the adherend material, the loading rate, temperature, and design of the adhesive joint, wide ranges of performance are Hsted. [Pg.232]

Adhesive type Shear load, MPa Peel load, N/m ... [Pg.232]

Evaluation of the three adhesive types UF, PF and PMDI concerning various parameters... [Pg.1079]

Adhesives are not used Just for structural applications on modern aircraft. In fact, the number of non-structural applications of adhesives vastly outnumbers the structural applications. Adhesives are used for everything from assembling lavatory walls to attaching the No Smoking sign to cabin partitions. Just a sampling of adhesive types and applications are discussed below. [Pg.1185]

Growth mechanism adhesive-type two-dimensional nucleation growth or spiral growth ... [Pg.26]

Spiral growth is a mechanism that is expected only on smooth interfaces. The assistance provided by screw dislocations is not necessary in the growth of rough interfaces, where an adhesive-type growth operates. [Pg.45]

Figure 3.15. Areas where rough and smooth interfaces are expected. The growth rate versus the driving force relations expected for the three models of growth are indicated on the growth rate, R (vertical), axis versus the driving force (A/x/kT) diagram. Curve A shows the spiral growth mechanism B represents the two-dimensional nucleation growth mechanism C denotes the adhesive-type mechanism.

Crystal faces with curved or wavy surfaces, not exhibiting either striations or step patterns, are rarely encountered. In most cases, these faces appear by dissolution. Rough interfaces grow by the adhesive-type growth mechanism, their normal... [Pg.90]

Adhesive type Slicin load, MPab Peel load. N/irf... [Pg.33]

Figure 4.2 Structure of silicones (a) silicone fluid (Dow Coming 360 Medical Fluid) (b) silicone foam elastomer (c) silicone elastomer (vulcanized Silastic 382 Medicalgrade Elastomer) and (d) silicone elastomer (vulcanized Silastic Medical Adhesive Type A)...

Epoxy adhesives have become the most recognizable structural adhesive type. They have found commercial success in demanding industries such as aerospace, automotive, building and construction, and electrical and electronic. Their ease of use has also encouraged their commercialization in the do-it-yourself markets, which has added to the exemplary reputation of epoxy adhesives. [Pg.9]

Adhesive markets represent only a small percentage of the total consumption of epoxy resins. However, epoxy adhesives provide significant value added, so that their prices and profit margins are generally higher than those for other adhesive types. Globahy in the year 2002, epoxy adhesives represented about 31 percent (or about 0.7 billion lb) of the total liquid epoxy demand (Fig. 1.2). The U.S. market is estimated to be just less than 200 million lb.10... [Pg.9]

Adhesive type Adhesion promoter Percentage of promoter Lap shear, psi... [Pg.190]

A significant advantage of tape and film adhesives is the greater toughness that is available compared to other adhesive types. This is primarily due to the ease with which resinous modifiers can be added to the formulation via solvent solution. Thus, hybrid epoxy adhesives such as epoxy-nylon, epoxy-phenolic, etc., are often found in tape or film form. [Pg.244]

Advantages of epoxy-based high-temperature adhesives relative to other adhesive types include relatively low cure temperatures, no volatiles formed during cure, low cost, and a variety of available formulating and application possibilities. The higher-temperature aromatic... [Pg.304]

Adhesive type Stress No stress Stress No stress Stress No stress... [Pg.324]

When solvent welding or thermal welding is not practical or desired, adhesive systems can be used. Adhesive types such as epoxies, urethanes, thermosetting acrylics, nitrile phe-nolics, and cyanoacrylates permit ABS to be bonded to itself and to other substrates. The best adhesives have shown strength greater than that of ABS however, these adhesives provide very rigid bonds. [Pg.367]

Excellent physical properties—wide variety of adhesive types available... [Pg.409]

Table I. Approximate Industrial Success Dependent on Formulation and Application by Adhesive Type...

This chapter provides examples of adhesive types used to make food packaging materials. It details the potential for chemical migration from adhesives and how the safety of these substances can be, and has been, tested experimentally. [Pg.321]

Examples of adhesive types used in food packaging applications... [Pg.321]

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