Review of thermal conductivity in composites: Mechanisms, parameters and theory

Fracture toughness and failure mechanism of graphene based epoxy composites

Carbon nanomaterials are receiving worldwide attention because of their multi-faceted superiority in thermal conductivity, flame retardancy, mechanical stability, electrical conductivity, and biocompatibility. In this review, a survey of the literature on extending performance of epoxy resins based on carbon nanomaterials is presented. The structure-performance relationships for different carbon nanomaterials modified epoxy are closely analyzed. The performance extension in mechanical, electrical, thermal conductivity, flame retardancy, antidegradation, and tribological properties of epoxy are reviewed in detail. Other application areas including biocompatibility, biodegradability, gas barrier properties, shape memory, and electromagnetic interference shielding are touched. The challenges and opportunities in carbon nanomaterials functionalized epoxy composites are also discussed.

A review of extending performance of epoxy resins using carbon nanomaterials

http://spiral.imperial.ac.uk/bitstream/10044/1/25157/2/Carbon.2015.pdf

Aligning multilayer graphene flakes with an external electric field to improve multifunctional properties of epoxy nanocomposites

Electrically conductive composites comprising polymers and graphene are extremely versatile and have a wide range of potential applications. The conductivity of these composites depends on the choice of polymer matrix, the type of graphene filler, the processing methodology, and any post-production treatments. In this review, we discuss the progress in graphene-polymer composites for electrical applications. Graphene filler types are reviewed, the progress in modelling these composites is outlined, the current optimal composites are presented, and the example of strain sensors is used to demonstrate their application.

/pdf/electrical-percolation-in-graphene-polymer-composites-4qq5g8p2if.pdf

Electrical percolation in graphene-polymer composites

Fiber-reinforced plastic material comprises fibers in a matrix. The reinforcing short fibers and/or reinforcing particles are present between the fiber layers. The reinforcing short fibers and/or reinforcing particles are embedded in the polymer matrix. An independent claim is also included for producing the fiber-reinforced plastic material comprising providing a layering of reinforcing long fibers, sprinkling the reinforcing short fibers and/or the reinforcing particles between the layers and impregnating the fiber laminate with a resin.

Fiber-reinforced plastic material comprises fibers with reinforcing short fibers and/or reinforcing particles, which are embedded in a polymer matrix

The invention relates to a strip for capturing vital data of a person, comprising at least one reversibly elastic film having a first strain parameter, wherein the film is designed to capture a change of at least one parameter of the vital data of the person. The invention further relates to a corresponding use.

Strip for capturing vital data of a person

Die Erfindung betrifft eine Beschichtung fur einen isolierenden Werkstoff. Die Beschichtung kann sowohl auf dreidimensionale Bauteile als auch auf Flachenstoffe wie Folien und Gewebematerialien aufgebracht werden. Die Koronabestandigkeit wird durch eine Silan- und/oder Siloxankomponente in der nasschemisch herstellbaren Beschichtung deutlich erhoht. Die Schicht kann durch Partikel modifiziert sein.

Beschichtung mit hoher Koronabeständigkeit, sowie Herstellungsverfahren dazu

The blade (1) has an erosion protection component (2) provided in the blade. A firmly bonded connection is secured at the blade. A positive connection is fixed with a form closure element (3) by pins or needles, which are engaged with a composite material. A single-piece is formed in the closure element and the erosion protection component. The erosion protection component is formed from a hard metal, titanium or ceramic. An independent claim is also included for a method for manufacturing a turbine blade.

Turbine blade, in particular final stage rotor blade of a steam turbine, with an erosion protection component

The creepage behavior of one thermosetting carbon fiber sheet molding compound (SMC) material was studied applying in-plane loading at 120 °C. Loads were applied in bending, tension and compression test setups at the same in-plane stress level of 47 MPa. Different creep strain rates were determined. The creep strain rate in flexural loading was significantly higher than in tensile loading. The test specimens in compression loading collapsed within minutes and no findings regarding the creep strain rates were possible. Overall, it was observed that the thermosetting press resin of this industrially used material had only little creep load bearing capacity at the mentioned temperature when loaded in mixed stress states. The test data has high usage for estimating design limits of structural loaded SMC components at elevated temperature.

https://www.mdpi.com/1996-1944/13/11/2545/pdf

Christian Seidel

Papers

Fiber-reinforced plastic material comprises fibers with reinforcing short fibers and/or reinforcing particles, which are embedded in a polymer matrix

Strip for capturing vital data of a person

Beschichtung mit hoher Koronabeständigkeit, sowie Herstellungsverfahren dazu

Turbine blade, in particular final stage rotor blade of a steam turbine, with an erosion protection component

Experimental Investigation on the In-Plane Creep Behavior of a Carbon-Fiber Sheet Molding Compound at Elevated Temperature at Different Stress States.