Research and application progress of phthalonitrile resin
Phthalonitrile resin is new type of high-temperature resistant thermosetting resin system that has attracted wide attention owing to its excellent thermal and oxidative stability,flame retardancy,and mechanical properties as well as low expansion coefficient,dielectric constant,and dielectric loss.To improve its manufacturability and meet stringent environmental performance requirements,extensive research has been conducted worldwide on the modification of the phthalonitrile system.This paper reviews the research progress of the phthalonitrile system from the aspects of molecular structure design and curing methods and mechanisms along with its applications in electrical components,adhesives,etc.Moreover,the paper discusses the opportunities and challenges faced by phthalonitrile as a new type of special functional resin material,aiming to provide insights for research in relevant fields.
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