Properties Enhancement of Reinforced Polybenzoxazine Composites

Polybenzoxazine resin as a type of phenolic thermosets is synthesized by the cationic ring-opening of the corresponding benzoxazine monomers without any extra initiator exhibits a range of outstanding characteristics such as excellent thermal properties and flammability- resistance no production of byproducts near zero shrinkage upon polymerization low dielectric constant and low moisture absorption. This book describes the preparation methods and characterization of several kinds of high-performance polybenzoxazine composites by using natural fillers including chitin Chitosan and Crab or sea shells; ceramic micro- and nano-fillers such as SiC and AlN micro-particles and Si3N4 B4C Cr2O3 and AlN nanoparticles; and Aramid fibers as reinforcing phase for satisfying the various mechanical and thermal requirements of some engineering and military applications. The curing behavior mechanical electrical thermal water-resistance and morphological properties were studied in details for the various fillers loadings.