Polyester resins: The basics - CompositesWorld
WEBFeb 2, 2020 · It is usual to refer to unsaturated polyester resins as “polyester resins,” or simply as “polyesters.”. There is a whole range of polyesters made from different acids, glycols and monomers, all having varying properties. There are two principle types of polyester resin used as standard laminating systems in the composites industry.
The state of recycled carbon fiber - CompositesWorld
WEBSep 4, 2019 · The case for recycled carbon fiber is a complicated one. The industry is built on the hope of solving problems — namely, the desire to keep carbon fiber waste out of landfills and to fill a potential gap between carbon fiber supply and demand. It is commonly estimated that around 30% of produced carbon fiber ends up as waste.
Core materials: The basics - CompositesWorld
WEBFeb 20, 2020 · Core materials: The basics. Core materials available for composite sandwich structures range from paper, aluminum and thermoplastic honeycomb cores to foams and more. Editor’s note: This content was originally published on NetComposites.com. NetComposites was acquired by CompositesWorld’s parent company, Gardner Business Media, in February ...
Pultrusion: The basics - CompositesWorld
WEBFeb 20, 2020 · Although pultrusion is a continuous process, producing a profile of constant cross-section, a variant known as “pulforming” allows for some variation to be introduced into the cross-section. The process pulls the materials through the die for impregnation, and then clamps them in a mold for curing. This makes the process non-continuous, but ...
The making of glass fiber - CompositesWorld
WEBJun 1, 2020 · Step 3: Fiberization. Molten glass exits the furnace at ≈1340°C/2444°F and is extruded through heated bushing plates (top image), which have 200 to 8,000 very small orifices, or nozzles. The winders (lower part of bottom image) apply tension to the extruded glass, drawing it out into thin filaments.
Carbon Fibers - CompositesWorld
WEB2 days ago · Carbon fiber is a high-performance reinforcement widely employed in composite materials due to its exceptional strength-to-weight ratio and stiffness. Composed of thin strands of carbon atoms, these fibers are renowned for their incredible durability and resistance to various environmental factors. In composite applications, carbon fiber offers ...
Rediscovering the benefits of prepregs in composites manufacturing
WEBAug 1, 2020 · KraussMaffei Composites Technology Overview During this webinar, the audience will be introduced to a variety of fiber composite technologies — as well as the machines and equipment — from short fibers to continuous fibers, from thermoset to thermoplastic, as well as the according process technology, including a special focus on long-fiber injection (LFI) and structural composite spray (SCS).
Composite submersibles: Under pressure in deep, deep waters
WEBMay 10, 2017 · In 2014, submersibles manufacturer OceanGate Inc. (Seattle, WA, US) was coming off the successful launch of Cyclops 1, its steel-hulled, five-person craft, rated for underwater exploration to a depth of 500m. The company was set to embark on development of Cyclops 2, a five-person research-class submersible, designed for a maximum depth of 4,000m.
Materials & Processes: Composites fibers and resins
WEBMar 14, 2016 · Compared to legacy materials like steel, aluminum, iron and titanium, composites are still coming of age, and only just now are being better understood by design and manufacturing engineers. However, composites' physical properties-combined with unbeatable light weight-make them undeniably attractive.
Materials & Processes: Tooling for composites
WEBMar 23, 2016 · A key issue with tooling for composites is the phenomenon of coefficient of thermal expansion (CTE) mismatch. Here, composite tooling has the advantage over metals. Composite tools made from tooling prepregs have a CTE close to the part CTE. During cure, shrinkage and thermal expansion of the tool and part will be very similar.
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