Category Archives: Materials Science
Manufacturing a product to withstand the environmental stresses of wind, rain, and sediment is challenging enough. But, when you add saltwater and wave action to the mix, the detrimental threat of corrosion increases significantly.
Anti-corrosive or anti-fouling coatings and protective paints serve to protect ships against those environmental threats.
But, the coating or paint is only as strong as its adhesive quality. If the adhesion fails, the coating or paint chips and the ship becomes vulnerable to corrosion. Failures in the field can be both costly and dangerous.
Ensuring quality adhesion is the key to guaranteeing successful protection. But, how can quality adhesion be achieved?
In 2014, a large manufacturer of automotive exteriors and interiors encountered a problem consistently adhering paint to their dashboards due to an inappropriate use of their flame treatment.
Flame treatment is a popular and notable procedure that can successfully modify the surface chemistry of a polymer, readying it for adhesion. Although flame treatment is an effective solution, determining the amount of treatment can be a delicate procedure. The over-flaming of these highly sensitive polymers can lead to polymer reorientation due to localized melting and ultimately, destruction of the surface.
In this case, however, the manufacturer was not utilizing flame treatment to monitor their surface cleanliness. Instead, they used it to deflash excess material on the edges of their dash boards. The edges of the dashboard were being over-flamed, hindering the polymer’s surface adhesion ability. This, in turn restricted paint from correctly adhering to the edges of the dashboard. The company needed a way to determine the appropriate amount of flame treatment.
Last week, SAMPE hosted a one-day technical conference, the High Desert Chapter, to provide an opportunity for composites manufacturers to touch base before the next full length SAMPE show in 2018.
BTG Labs’ West Coast Sales Engineer Aaron Berding, hosted a booth for the event.
Was this your first time at the show? What were some advantages to a smaller show? What was different about this one?
This was BTG’s first time at the show. The advantage of the small show was that attendees had more time to stop and chat without the overwhelming crowds and busy schedule. They are more willing to stop and chat with your because there were only 75 booths, instead of 300, 500, etc. …Read More
Check out BTG Labs’ recent article published in Converting Quarterly’s Q3 issue. The official publication and technical journal of International Metallizers, Coaters, and Laminators, Converting Quarterly is the go-to publication for web processing, converting, and finishing industries.
Industry professionals and researchers contribute to the magazine and offer the latest in research and development and industry trends.
Dr. Giles Dillingham, Chief Scientist of BTG Labs, contributed to the most recent issue with an article entitled, “Film surface properties: Techniques for measurements and control of treatment level.”
The success of print quality and adhesion quality of films relies on precise control of the surface. Manipulating surface composition with methods such as flame, corona, and plasma treatment can increase surface energy and thus improve the integrity of print and adhesion on film. …Read More
BTG Lab’s recently held another successful webinar. Hosted by Products Finishing and presented by Dr. Giles Dillingham, the webinar emphasized the importance of monitoring cleaning processes and explored different ways to measure surface cleanliness.
In the webinar, Dr. Dillingham discusses measuring surface cleanliness as a way to quantify cleaning processes. By measuring the success of cleaning processes, manufacturers can determine the ideal solution for their application.
Precisely evaluating cleaning processes with water contact angle is a fast, easy, accurate, quantitative to way to gain ensure consistency and precision on the factory floor.
Contrary to popular belief, print isn’t dead: at least not printed packaging, an industry growing to a worth of $8 billion of the $20 billion global print market.
The printed packaging market is booming. As with any growing industry, manufacturers must work vigorously to produce the best product and continue developing better ones.
Some of the newer developments include smarter surface processes. Que BTG Labs. When it comes to surface processes, we’re in our element. As experts in materials science, we have the ability to optimize critical surface processes for manufacturers—including printed packaging.
Any printing involves critical surface processes including supplier quality check, surface treatment, verification, shelf life, and trouble shooting.
The Surface Analyst improves these areas of printed packaging. This surface cleanliness gauge determines the quality of incoming product; sets or optimizes specifications; verifies surface treatments such as corona and flame; determines the shelf life of the material after treatment; and trouble shoots printing issues.
Nestled in the tall pines of the Jemez Mountains lies the Los Alamos National Laboratory. This center of scientific excellence, brings together some of the top minds in the world to maintain the country’s nuclear arsenal.
This maintenance requires precise attention to detail and includes upkeep and repairs.
Dr. Dillingham presented to the lab last week on how those repairs can be improved and ways to establish the strongest possible bond.
His presentation, “Understanding and Controlling the Bond Surface in Manufacturing for Reliable Adhesive Bonding” delved into surface characteristics, the importance of controlling the bond surface, and characteristics of the surface that can be manipulated to form stronger bonds. …Read More
Teflon is a household name that commonly invokes images of eggs sizzling on a skillet, spatulas flipping pancakes, or rice steaming in a pan.
But, there is much more to this magical non-stick coating.
Teflon, a brand name for PTFE (polytetrafluoroethylene), prohibits food from sticking to pots and pans because of its hydrophobic properties.
As a low-energy, fluorocarbon solid neither water nor water containing substances can influence the surface. This means that nothing will stick to the surface or penetrate it.
Today, Teflon has improved culinary pursuits and made cooking more accessible, but that isn’t the only field PTFE has influenced.
The medical device industry would not be what it is today without PTFE. As medical devices work intimately with the human body, they must be completely sanitary, inert, and harmless.
With its lubriciousness and impenetrable properties, PTFE is used to coat a variety of medical devices such as catheters, surgical equipment, balloons, bladders, and implants.
But, PTFE only works when the coating itself sticks to the surface. This requires proper surface preparation which can be challenging in any manufacturing floor. It’s especially difficult in medical device manufacturing as specifications are so high and there is no room for failure. …Read More
We’re talking about invisible surface chemistry, of course.
“Usually, the customer knows there’s something wrong with the surface, but they don’t know what,” says M&P Engineer and R&D Chemist Brooke Campbell. She and Elizabeth Kidd, our R&D Chemist and custom application scientist combine their analytical expertise with the instruments in our highly sophisticated lab; they evaluate, characterize, and optimize critical surface processes for industries from consumer goods, medical device, aerospace, and everything in between.
Using highly advanced instruments such as the XPS (X-ray Photoelectron Spectroscopy), FTIR (Fourier Transform Infrared Spectroscopy), Instron, goniometer, and of course, the Surface Analyst, the lab performed various tests to evaluate the surface. They then characterize the issue. This usually entails identifying a contamination or an issue with surface preparation. Lastly, they deduce an answer.
In some instances, Brooke explains, the customer has implemented an instrument in their manufacturing processes. All is well until they come across a batch that is out of spec. They know there isn’t a problem with the instrument, but that’s it. So, their puzzle makes its way to the M&P lab for investigation. …Read More