Course Title

Course Title: Adhesives and Sealants

14 Professional Development Hours/1.4 CEUs

Course Description: The Adhesives and Sealants Course describes the mechanisms, which can be postulated to explain the adhesion of one material to another: (1) mechanical interlocking, (2) electrostatic attraction (3) interdiffusion and (4) adsorption and surface reaction. Mechanical interlocking can certainly be a significant factor in adhesion. Another topic of discussion is the dominating adhesion mechanism, especially in the absence of reactive groups, is the electrostatic attraction between the polar groups of the adhesive to the adherends and to each other.

Overall Course Objectives:

Describe the different types of surface treatment for plastics, metals and composites.
Learn about the different joints and how they are designed.
Recognize the differences and similarities between adhesives and sealants.

Course Content:

Lesson 1 - Fundamentals of Adhesion, Surface Engineering

Objectives:

Define adhesion and recognize the bonded assembly failure modes, and different bonding mechanisms.

Understand the importance of surface treatments and primers on metals, thermoplastics,
and composites.

Identify the tests available to measure the effectiveness of surface preparation treatments
before and after bonding.

Lesson 2 - Design of Adhesive Joints, Adhesive Selection

Objectives:

List the four main types of stress found in adhesive joints, and interpret stress analysis of adhesive joints.

Select the most common joint design used in bonding flat adherends.

Recognize the adhesive selection criteria.

Lesson 3 - Comparison of Adhesives, Bonding of Plastics, Sealants

Objectives:

Compare the major groups of adhesives based upon characteristics such as temperature, and environmental resistance.

Identify bonding processes that are reliable in the fastening of plastic to itself, to another plastic, or to a non-plastic substrate.

Define the features that sealants are generally classified by, and identify material characteristics curing time.

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