Properties of Adhesives
This handbook contains information about the classification, types, form, properties, bonding process of adhesives.
TABLE OF CONTENTS Properties of Adhesives
Chapter 1: Properties of Adhesives
An adhesive can be defined as a substance that is capable of holding materials together by surface attachment. Surfaces on which an adhesive is applied are known as adherends, while the process of holding multiple adherends together by adhesion is called bonding. The total system, consisting of adherend and adhesive, is called a bond or joint.
This handbook discusses the advantages, classification, and properties of adhesives.
Using Adhesives
A good adhesive possesses the following qualities:
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The degree of stickiness is high.
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Bonding takes less time.
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On drying, the bond setting exhibits high strength.
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Durability is high.
Advantages of Adhesives
The advantages of adhesives are:
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High heat is not required for bonding.
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Adhesives can be applied to the surfaces of any material, such as glass and metal, metal and metal, metal and plastic, plastic and plastic, and ceramic and ceramic.
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Bonding between surfaces occurs easily and quickly.
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Two surfaces or materials joined using adhesives are notably free off any residual stresses. This makes it possible to utilize fully the inherent strength of any material.
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Adhesives are electrical and thermal insulators.
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The application of adhesives is a very simple process.
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Adhesives reduce galvanic corrosion along the joints of dissimilar metals.
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Adhesive joints are Ieak-proof for gases and liquids.
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Adhesives are corrosion resistant.
Disadvantages of Adhesives
The primary disadvantages of adhesives are:
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Adhesives cannot be applied at elevated temperature because most of them are prepared from organic materials. The bond strength of adhesives decreases rapidly with the rise in temperature.
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There is...
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