polymer – TechConnect Briefs

Multilayer Low Tg Inorganic Glass/Polymer Barrier Films

Vennerberg D., Bemis Company, Inc., US

Conventional high barrier films are produced by coating or laminating inorganic materials to polymeric substrates. While successful at lowering the permeability of the films, several unit operations are required to introduce multiple inorganic barrier layers. [...]

Exploring Process-Properties Relationships of 3D-Printed PLA: Towards Process- Informed Simulation and Design

Grant A., Ellis B.D., Rais-Rohani M., Hajiha R., University of Maine, US

The simulation of additively manufactured (AM) Polylactic Acid (PLA) tensile specimen is discussed. The procedure of evolution and use of a material definition for finite element simulation (FEA) of Polylactic Acid (PLA) printing is discussed, [...]

Multiscale Simulation of Unidirectional Carbon Fiber Reinforced Polymer Strength

Cornwell H, Lima L, Souza F, MultiMechanics, US

Finite element (FE) analysis has become increasingly important for mechanical design and the development of new advanced materials. Being able to predict structural performance accurately and efficiently can circumvent the extensive time and cost of [...]

Curvature Change Analysis of SMART Fibers used for Temperature Adaptive Insulation

Latulippe A., Ripa C., Sun H., Fossey S., Drew C., University of Massachusetts-Lowell, US

A thermally adaptive insulation has previously been developed by the US Army. The insulation is designed to expand at lower temperatures and shrink at higher temperatures. This is accomplished using multi-component polymer fibers that are [...]

Microwave-assisted synthesis of bioabsorbable nanoparticles to be used as reinforcement of PLGA in biomedical applications

Colmenares G.J., Ramírez M.E., Ortiz I.C., Hoyos L.M., Universidad Pontificia Bolivariana, CO

Biodegradable polymers have been used in a large number of mass production applications such as packaging, paper coating, fibers, films and other disposable items, as well as in biomedical applications (Kalia & Avérous, 2011). The [...]

Coatings for next-generation harsh environment systems.

DiMaio J.R., Shaughnessy M., Berger K., Morgan B., Haldeman A.T., Tetramer Technologies, US

From space to oil and gas wells, polyimide coatings and films are used to protect critical components such as fiber optic cables, enameled wires, and sensors in harsh environments. Polyimide materials provide exceptional thermal durability, [...]

Brand Protection and Authentication Enabled By Frangible Polymer Technology

DiMaio J., Tetramer Technologies, LLC, US

Tetramer has developed a unique technology to produce pre-stressed frangible, polymeric coatings. These can be applied using traditional thin-film coating and curing techniques or more advanced 3D-printing techniques. The ability to produce stable, pre-stressed films [...]

Abrasive scanning with AFM on biocompatible polymers: measuring dry vs. swollen film thickness and probing properties

Haugstad G., Wormuth K., University of Minnesota, US

Atomic force microscopy (AFM) is well-known as a tool for imaging surface topography down to subnanometer scales on all forms of matter, utilizing a scanning stylus (“tip”). The method is applicable to biomolecules adsorbed to [...]

Anisotropic mechanical performance of 3D printed polymers

Sebert A., Nelson J., Bertacco G., 3D Matter, US

As 3D printing continues to grow as a viable manufacturing process, quantification of the processing options and parameters will allow for better design and modeling of printed parts, or at least clearly understand the trade-offs [...]

Platform Reagent Development for the Intracellular Delivery of Therapeutic Peptides

Evans B.C., Lander C., Duvall C.L., Moerae Matrix, Inc., US

Peptides hold many advantages over the small molecule drugs that dominate the current healthcare market in terms of potency, specificity, and biocompatibility, and they are faster and easier to implement than genetic modifications for completion [...]