Synergistic Toughening of Epoxy through Layered Poly(ether imide) with Dual-Scale Morphologies

Toughness of epoxies is commonly improved by adding thermoplastic phases, which is achieved through dissolution and phase separation at the microscale. However, little is known about the synergistic effects of toughening phases on multiple scales. Therefore, here, we study the toughening of epoxies with layered poly(ether imide) (PEI) structures...

Aramid fibre reinforced high-performance thermoplastics: Mnufacturing and impact characterisation

While aramid fibre composites are generally said to have excellent impact properties, this has not yet been translated to the aerospace sector, where impact prone secondary structures remain to be made from metals or glass fibre reinforced polymer. Aramid fibre reinforced engineering thermoplastics could combine the stiffness of thermoset resins...

Consolidation of hybrid textiles for aerospace applications

Side-by-side hybrid textiles consist of layers of woven reinforcing fibres and thermoplastic fibres fabrics alternatively stacked on each other, as represented in Figure 1. Press moulding of side-by-side hybrid textiles is a manufacturing method where a near-net shape final part is produced in a single step, unlike pre-impregnated materials...

Effect of a Dwell Stage in the Cure Cycle on the Interphase Formation in a Poly(ether imide)/High T_gEpoxy System

Epoxies are inherently brittle materials and to overcome this brittleness, a second microphase (i.e., thermoplastic) is typically added. This modification of epoxy resin using thermoplastics results in reaction-induced phase separating morphologies in the micrometer range. In this study, the influence of the curing history, beyond phase...

Study of amine degradation in Direct Air Capture

The extensive use of fossil fuels and the emission of greenhouse gases has resulted in severe issues such as global warming and climate change. The energy and transport sector generate a major share of greenhouse gases globally. Though renewable energy can supply some of the energy demands, fossil fuels are still considered as a primary source...

Direct Air Capture: Characterization and design of a novel absorption process

Rising concentration of CO2 in the atmosphere has become a significant concern, paving the way for worldwide research on mitigation techniques like carbon capture and storage (CCS) and carbon capture and utilization (CCU). Zero Emission Fuel (ZEF), an aspiring startup based in the Netherlands, aims to develop a micro plant that produces methanol...

Low cost thermoplastic composites: An empirical approach

In this report, the possibility of replacing high performance thermoplastic polymers with alternative low-cost ones is investigated. Since thermoplastics offer fast processing times and the opportunity to use efficient production processes which are not suitable for thermosets, they are an attractive material<br/>system for the aerospace...

An in vitro approach to evaluate and develop potential Sn-117m based bone-seeking radiopharmaceuticals

It has become standard practice in the development of radiopharmaceuticals to evaluate/assess the efficacy of prospective therapeutic or diagnostic agents by animal models, which generally calls for subjecting a substantial number of animals to intensive test and retest measurements for obtaining representative and conclusive results/data. This...

A new method for impregnating PEI sheets for the In-Situ foaming of sandwiches