Printing silver nanoparticle inks to generate conductive structures for electronics on polymer substrates has gained increasing relevance in recent years. In this context, the Aerosol-Jet Technology is well suited to print silver ink on 3D-Molded Interconnect Devices (MID). The deposited ink requires thermal post-treatment to obtain sufficient electrical conductivity and adhesion. However, comm...

A low concentrated polystyrene (PS) additive to epoxy is used, since it is able to reduce the curing reaction rate but not at the cost of increasing viscosity and decreasing glass transition temperature of the curing epoxy. The modified epoxy is cocured with a compatible thermoplastic interleaf during the vacuum assisted resin transfer molding (VARTM) to toughen the interlaminar of the composit...

For mass production of structural composites, use of different textile patterns, custom preforming, room temperature cure high performance polymers and simplistic manufacturing approaches are desired. Woven fabrics are widely used for infusion processes owing to their high permeability but their localised mechanical performance is affected due to inherent associated crimps. The current investig...

Plastic welding technique is a of gluing to workpieces, especially plastic materials. The aim this research was join the thermoplastic polymer material using an acetylene oxy welding. connection method by melting electrodes on workpiece so that can fuse parent material. materials used are Polyethylene (PE), Polyvinyl chloride (PVC) and Polypropylene (PP) sheets with appropriate from their respe...

Although thermoplastic materials are mostly derived from petro-chemicals, it would be highly desirable, from a sustainability perspective, to produce them instead from renewable biopolymers. Unfortunately, biopolymers exhibiting thermoplastic behaviour and which preserve their mechanical properties post processing are essentially non-existent. The robust sucker ring teeth (SRT) from squid and c...

An elasto-viscoplastic constitutive model was previously developed and successfully used to describe the anisotropic time-dependent response of short fiber reinforced thermoplastics. It is demonstrated that when it applied systems with a higher level anisotropy, apparent anisotropy rate-dependent yield stress deviates from Hill parameters are define it. This becomes more if increased. The origi...

1 This work was supported by Veterans Administration Contract V1005M-1079. 2 Coordinator, Prosthetic Research and Education, Northwestern University Prosthetic-Orthotic Center. 3 Research Prosthetist, Northwestern University Prosthetic Research Center. The ability to make a socket by applying a thermoplastic material such as Polysar X-414 (Polymer Corp. Ltd. TM) directly to an amputee's stump o...