Resin cross-flow during compression molding of unidirectional sheet molding compound composites, such as CSMC and XMC, may cause severe misorientation of the continuous fibers in the outer layers. The extent of fiber misorientation depends on the type of molding compound, the length of cross-flow, and the location of the charge in the mold. The tensile strength is reduced in the direction of cr...

A non-autoclave vacuum bag process using atmospheric pressure alone that eliminates the need for external pressure normally supplied by an autoclave or a press is an attractive method for composite fabrication. This type of process does not require large capital expenditures for tooling and processing equipment. In the molding cycle (temperature/pressure profile) for a given composite system, t...

This paper deals with a new silicone resin compound that can be cured by addition curing and peroxide curing, respectively. Curing post-curing behavior has been investigated optimized. Numerous trials towards the optimization of binder-filler combinations have performed. The resulting material POWERSIL® Resin 710 respect to its mechanical thermal behavior. exhibits heat class R processed press ...

Room temperature cure epoxy resin has been doped with SiC nanoparticles through an ultrasonic cavitation process. The modified resin was then utilized in a Vacuum Assisted Resin Transfer Molding (VARTM) process with satin weave carbon fibers to manufacture nanophased composite panels. The nanoparticles were spherical in shape and about 29 nm in diameter. The loading of nanoparticles into the re...

The RTM process is mostly used in aeronautics and space industries. In this process the reinforcement is placed inside a mould and a low viscosity resin is injected and heated until it polymerises. The impregnation of the reinforcement and the polymerisation step are two keyelements to reach good piece quality. The knowledge of the front position of the thermosetting resin and polymerisation de...

A wood-based prepreg was formed using vacuum assisted resin transfer molding (VARTM) and a low viscosity thermoplastic resin. Wood strands were assembled to make porous mat for injection. The filled most of the cavities inside wood cells resulting in void volume fraction 7%. Young’s modulus strength saturated 38% 124% higher, respectively, than those prior infusion. Flat laminates produced by t...

Despite significant advancements in bio-based natural-fiber-reinforced composites, the recyclability/reprocessing of thermoset composites remains a persistent challenge that needs to be addressed. In present study, an effort is made provide justification for assessment sandwich composite panels with ‘recyclate’ (i.e., recycled flax/bio-based epoxy composite) cores and (flax/bio-based epoxy) ski...