Cyanate esters are chemical substances generally based on a bisphenol or novolac derivative, in which the hydrogen atom of the phenolic OH group is substituted by a cyanide group. The resulting product with an -OCN group is named a cyanate ester. Cyanate esters can be cured and postcured by heating, either alone at elevated temperatures Full Article…
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Carbon Fibre Reinforced Polymer
Carbon Fibre reinforced polymer or Carbon Fibre reinforced plastic (CFRP or CRP or often simply carbon fibre), is a very strong and light fibre reinforced polymer which contains Carbon Fibre, The polymer is most often epoxy, but other polymers, such as polyester, vinyl ester or nylon, are sometimes used. The composite may contain other fibres Full Article…
Fibreglass Hand lay-up
Resin is mixed with a catalyst or hardener if working with epoxy, otherwise it will not cure (harden) for days/weeks. Next, the mould is wetted out with the mixture. The sheets of fibreglass are placed over the mould and rolled down into the mould using steel rollers (aka paddle rollers or consolidating rollers). The material Full Article…
Filament Winding
Filament winding is a fabrication technique for manufacturing composite material, usually in the form of cylindrical structures. The process involves winding filaments under varying amounts of tension over a male mould or mandrel. The mandrel rotates while a carriage moves horizontally, laying down fibres in the desired pattern. The most common filaments are carbon or Full Article…
Vinyl Ester Resin
Vinyl Ester, or Vinylester, is a resin produced by the esterification of an epoxy resin with an unsaturated monocarboxylic acid. The reaction product is then dissolved in a reactive solvent, such as styrene, to a 35 – 45 percent content by weight. It can be used as an alternative to polyester and epoxy materials in Full Article…
Carbon Fibre
Carbon fibre or carbon fibre in Europe, alternatively graphite fibre, carbon graphite or CF, is a material consisting of fibres about 5–10 μm in diameter and composed mostly of carbon atoms. The carbon atoms are bonded together in crystals that are more or less aligned parallel to the long axis of the fibre. The crystal Full Article…