Pressure-sensitive adhesives (PSAs) are used in applications ranging from labeling food packaging to assembling electronic devices to mounting graphics displays. Although they have been around for decades and their use is widespread, manufacturers, converters, and printers may not understand the key differences between the adhesive choices available, how they’re constructed, or which are best suited for a particular job.
This article examines the external events that have led to greater awareness of adhesives’ performance in the event of a fire, the standards and regulations that are being imposed, and the development of new fire-resistant materials.
Historically, fire resistance has not generally been a significant requirement when specifying adhesive systems. Recent incidents, however, indicate that this may soon change. These include events outside of the formulators’ arena, such as increased sensitivity to the performance of components in a fire, and events within the formulators’ arena, such as the development of flame-resistant additives.
Many biodegradable polymers are suited for adhesive applications, such as environmentally friendly packaging, recyclable envelope adhesives and biomedical devices.
Significant advances have been made over the past 20 years in the development of biodegradable polymers. These materials have been developed in a variety of forms, and thus have potential use in a range of industries, including adhesives.
Substrates with reactive groups available for bonding make chemical bonding easier to achieve, while substrates with nothing to react to make adhesion difficult.
Adhesive technology is equal parts chemistry and "black magic." The sheer number of available substrates makes it nearly impossible to test each adhesive on every type. However, by conducting tests on a selection of novel, or difficult-to-adhere-to, substrates, we can make inferences that may help narrow the choice of adhesives.
Increasing alternatives to mechanical fastening are available.
With ongoing advances in structural adhesive formulation, designers in every industry have increasing alternatives to mechanical fasteners for assembly of metal, composites, plastics, rubber, glass and more.
Water-based adhesive systems make inroads into traditional solventborne technology.
Contact adhesives based on polychloroprene exhibit performance advantages over alternative adhesive systems in a variety of related applications where quick, high-strength, permanent bonds are needed.
Analytical tools are now available to engineers and product designers challenged with the task of reducing the radiated noise and vibration levels of structures.
The radiated noise and vibration characteristics of manufactured goods are a common concern for most product designers as they strive to provide products that are "whisper quiet."
To answer our questions on the outlook for the industry, we leaned on members of our editorial advisory board and others representing raw material and equipment suppliers, adhesives manufacturing, product development, technical service, business management and consulting.
Tap into the expertise of an impressive group of professionals specializing in adhesives and sealants, ask them to predict the future for the industry, spice it up with their opinions on some hot topics, and you come up with a good read.