Imidocarbonate intermediate can be formed between hydroxyl and
cyanate groups before they are converted to triazine structures.
Cyanate esters and other thermosetting polymers have been modified by adding nano-scale additives, such as fumed silica [1], layered silica clay particles [6], carbon nanotubes and fibers to achieve desired processing characteristics and mechanical properties.
The CE resin 1,1'-bis(4-cyanatophenyl) ethane with a
cyanate equivalent of 132 g/equiv was obtained from Shanghai Huifeng Technical and Business Co.
Two other new
cyanate esters from Bryte Technologies include EX-1505 and EX-1509, both intended for high-temperature applications.
However, the network build-up encompassing the numerous possible side reactions during
cyanate ester cure is actually much more complex and has been reviewed in detail by Bauer and Bauer (11), (12).
In our previous study on bisphenol E
cyanate ester (BECy)/silica nanocomposites, silica nanoparticles showed a slight catalytic effect on the cure behavior of BECy (18).
In terms of new resins,
cyanate esters seemed to be the stars of this show.
Bisphenol E
cyanate ester (BECy; bis-(4-cyanato-phenyl)-1, 1 -ethane) belongs to a family of
cyanate esters, which can form high-temperature thermosetting polymers, with excellent thermal and mechanical properties.
Steiner obtained encouraging results with an intermediate approach, whereby thermoplastic PEEK and polyethersulfone (PES) particles were dispersed in thermoset
cyanate ester resin mainly in the interlaminar region between prepreg plies.
Global Composite Materials Market By Resin (Thermoset Resins, Thermoplastic Resins), Fiber (Glass, Carbon, Aramid, Others), Coatings (Surface Veil, Gel Coat), Adhesives (Epoxies, BMI,
Cyanate Ester, Polyurethanes, Modified Acrylics, Silicones), End-User (Construction, Transportation, Electronics & Electrical, Healthcare, Power Generation, Industrial, Aerospace & Defense, Marine, Others), Geography