Novel, all-acrylic pressure-sensitive adhesive compositions with inherently lower surface energy display significantly improved adhesion to LSE substrates such as polyethylene and polypropylene.
The prevailing trend toward the use of lighter weight and lower cost engineered plastics in automotive, construction, aerospace, electronics, and other industrial uses has created a need for pressure-sensitive materials that can bond well to these new, inherently low-surface-energy (LSE) plastics. This article discusses novel, all-acrylic compositions with inherently lower surface energy that display significantly improved adhesion to LSE substrates such as polyethylene and polypropylene.
Microchannel array. Engineers at Oregon State University (OSU) have invented a new way to use surface-mount adhesives in the production of low-temperature, microchannel heat exchangers-an advance that will make this
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.
Substrates with reactive groups available for bonding make chemical bonding easier to achieve, while substrates with nothing to react to make adhesion difficult.
October 1, 2005
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.