Tag Archives: FTIR

  • Tales from the M&P Lab

    by Emily Walsh July 2017

    In the BTG Labs’ Materials and Processing laboratory, magic happens. Or, at least it seems that way. In the BTG Lab our specialists see the unseen. They reveal the invisible.

    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

  • Visit booth 220 or attend the presentation of Chief Scientist, Dr. Giles Dillingham.

    What is known as The Plastics Technology Conference, ANTEC (Annual Technical Conference) 2017 brings together diverse members of the plastics industry from around the world. Taking place in Anaheim, California May 8-10, ANTEC 2017 showcases the latest technologies and advancements in the plastics industry.

    Dr. Dillingham’s presentation, “Rapid Evaluation of Surface Properties of Medical Tubing for Process Development and Quality Assurance” explores methods of quality assurance testing on sensitive medical tubing. Significant properties of medical tubing–adhesion, wettability, antithrombogenicity, biocompatibility—allow for the ability to deliver fluids, gases, drain, and enter the body effectively. Yet, these properties depend on the top 2-3 molecular layers of the tube’s surface. This is why precise control of the surface is crucial for the success of medical tubing. But, this can be challenging. Laboratory techniques such a FTIR and XPS can reveal surface composition, however, these methods are not practical on the manufacturing floor.

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  • Lab Capabilities

     

    The history of BTG Labs is rooted in adhesion research. Originally a development lab, BTG Labs specialized in plasma polymerized coatings. The engineers worked with coatings containing corrosion resistant and anti-microbial properties. BTG Labs worked to improve adhesives and surface treatment processes. This brought about the Surface Analyst and today, BTG Labs still utilizes its twenty plus years of Materials Science expertise to assist manufacturers in understanding how the Surface Analyst fits into their production process and how their surfaces affect the overall manufacturing processes.

    As an innovative and investigative materials science company, BTG Labs boasts a highly sophisticated lab with several analytical instruments. BTG Labs not only produces the ideal surface measurement device, but it can help develop surface preparation processes, trouble shoot existing surface sensitive processes, and diagnose surface chemistries.

     

    Knowing Your Surface

     

    lab-elizabeth

    BTG Labs M & P Scientist operating the XPS

    Surface chemistry directly relates to surface energy and can predict a surface’s ability to maintain a bond. Thus, when developing or remodeling surface processes, knowing the chemistry of one’s surface is a good starting point. Our X-ray Photoelectron Spectrometer (XPS) uses X-Rays in an ultra-high vacuum system to provide elemental information of specific surface chemistry. Sensitive to the top two molecular layers of a surface, the XPS reveals to the customer exactly what is on the surface of their product.

    The Fourier Transform Infrared Spectroscopy (FTIR), another powerful technique utilized for surface analysis, uses infrared light to detect the presence of functional groups on the surface of your material. It is also capable of coating characterization (i.e. liquid films, contaminant residue, coupling agents etc.). With specular reflectance, attenuated total reflectance (ATR), transmission, and diffuse reflectance accessories, BTG Labs is equipped to analyze a vast array of materials and surfaces.

     

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