composite – TechConnect Briefs

Processing of Polypropylene by Material Extrusion Additive Manufacturing

Gonzalez-Gutierrez J., Spoerk M., Holzer C., Luxembourg Institute of Science and Technology (LIST), LU

Material extrusion additive manufacturing, also known as fused deposition modeling (FDMTM) or fused filament fabrication (FFF), is one of the simplest and most economical additive manufacturing technologies. The feedstocks used in FFF are filaments, and [...]

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. [...]

Diatom Frustules as Substrates for Photocatalysts

Day N., Olsen J., Thiebes J., Polliack A., Diatomix, US

Nanomaterials are quickly becoming highly useful for many applications. The public is concerned with the long-term effects of nanomaterials in the environment. Composite materials as substrates for nanoparticles can be tailored to maintain functionality as [...]

Composite Wool – Natural Product Antimicrobial Textiles

Aljohani S., Johnston J.H., Victoria University of Wellington, NZ

Wool textile products are widely used in apparel, furnishings and floor coverings. They also find use in medical, and healthcare applications such as bandages and masks where unfortunately they can provide environment favourable for microbial [...]

Modeling Failure in Fiber-Reinforced Composite Tubes using TRUE Multiscale technology

Souza F, Castro L, Neves K, Lima L, Cornwell H, Multi, US

Finite element 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 repetitive [...]

Adsorption of Crystal Violet Dye from Aqueous Solution on Palm Kernel Shell Activated Carbon – Magnesium Oxide Composites Particles

Adebayo G.B., Adegoke H.l, Adekola F.A., Omolade O.O, Abiodun A., University of Ilorin, NG

A composite of activated carbon prepared from palm kernel shells (PKSAC) and magnesium oxide (MgO) particles was synthesis through hydrothermal method in ratio 10:1. The Palm kernel was carbonized at 6000C for two hours, it [...]

Graphene Synthesized in the Gas Phase: Research and Applications

Dato A., Harvey Mudd College, US

Pure and highly ordered graphene can be rapidly and continuously produced through the substrate-free gas-phase synthesis method. The single-step process involves sending precursors, such as ethanol and dimethyl ether, directly into atmospheric-pressure microwave-generated argon plasmas, [...]

Fire Resistant, 2nd Generation Resorcinol, PEEK™-Like Phthalonitrile Composites For Advanced Applications

Laskoski M., Keller T.M., Naval Research Laboratory, US

A new oligomeric 2nd generation resorcinol, PEEK™-like phthalonitrile resin has been developed via a cost-effective methods and is being transitioned to an industrial scale. The phthalonitrile monomer used to prepare composite components exhibits viscosities much [...]

SU8-graphene: a new photo-patternable conductive polymer composite

Majidian M., Grimaldi C., Baibarac M., Baltog I., Forró L., Magrez A., EPFL, CH

SU8 epoxy is a photo-resist with great intrinsic properties such as high thermal stability, chemical and mechanical robustness along with high sensitivity to UV. Having eight reactive epoxy sites in each monomer molecule, a high [...]

Thermal Transformation of Aqueous Lignin Suspension into Nanoparticle Dispersion and Its Associative Properties

Zhaoquing L., Gast J.C., Bottorff K.J., Solenis LLC, US

LIGNIN IS THE SECOND MOST ABUNDANT BIOPOLYMER. NANOPARTICLE DISPERSIONS OF LIGNIN WERE OBTAINED BY SIMPLY HEATING IN A CONTROLLED MANNER A PARTIALLY NEUTRALIZED LIGNIN SUSPENSION IN WATER. THE LIGNIN NANOPARTICLES WERE FOUND TO FORM STABLE [...]