Advantages and Disadvantages of Adhesive Bonding

one must consider the time, trouble, and expense that may be necessary to use an adhesive. For example, certain plastics may require expensive surface preparation processes to allow the adhesive to wet the surface. Applications requiring high-temperature service conditions may require an adhesive that necessitates an elevated-temperature cure over a prolonged period. 

On the other hand, certain applications could not exist without adhesive bonding. Examples of these are the joining of ceramic or elastomeric materials, the joining of very thin substrates, the joining of surface skin to honeycomb, and numerous other applications. There are also certain applications where adhesives are chosen because of their low cost and easy, fast joining ability (e.g., packaging, consumer products). 

Sometimes conventional welding or a mechanical joining process is just not possible. Substrate materials may be incompatible for metallurgical welding due to their thermal expansion coefficients, chemistry, or heat resistance. The end product may not be able to accept the bulk or shape required by mechanical fasteners. 

Minimizes or prevents galvanic corrosion between dissimilar metals. 

Often is less expensive and faster than mechanical fastening. 

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Table 13J2 Advantages and disadvantages of adhesive bonding...

Definition of Adhesives and Adhesive Bonding Functions of Adhesives Classification of Adhesives Advantages and Disadvantages of Joining Using Adhesives... 

The advantages and disadvantages of garment adhesive bonding are summarized in Table 13.2. While adhesives have several important advantages, the material cost, production requirements, and additional weight of the adhesive can be disadvantageous in certain applications. 

With the advantages and disadvantages of these systems it is still going to be difficult to convince customers that the reliability of the bonded products using waterborne adhesives will be as good as for products produced with solvent-based systems. 

What adhesives should be used to bond a carbon tiber/epoxy composite laminate to an aluminum framework Why Comment on the advantages and disadvantages of various adhesives under potential application conditions. 

Adhesives offer both advantages and disadvantages in comparison with other methods of assembly, some of the most important of which are presented in summary form at the conclusion of this chapter. (The chapter as a whole comprises an introductory section, a summary of theoretical considerations underlying the effective use of this approach, a review of the types and typical compositions of adhesives suitable for bonding plastics ( solvent-based , water-based , hot-melt , and reactive ), requirements and methods for treating the surfaces in preparation for bonding, and a number of examples of the successful use of adhesives.)... 

The previous discussion highlighted a number of advantages of adhesive bonding. This section will cover both advantages and disadvantages, recognizing that some of the points have already been mentioned. 

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