Epoxy resin inorganic nanocomposites

Nanomaterials and nanocomposites are a new type of high performance materials that have been rapidly developed in the past 20 years. They are the areas with the greatest vitality in the research of new materials today and have a very important impact on the future economic and technological development. Japan listed it as one of the four major research tasks in materials science. The United States’ "Star Wars" and European "Eureka" plans have listed it as a key project. China has also set up a nanomaterials group in its climbing plan.
The nanomaterial is an ultra-fine particle material with a particle size of 1 to 100 mm. Therefore, its specific surface area is large, its surface energy is high, its surface atoms are not well coordinated, and it has strong surface activity and super-adsorptive capacity. And has the special properties that conventional materials do not have, such as volume effect, quantum size effect, macroscopic quantum tunneling effect, and dielectric confinement effect. Thus, nanomaterials have microwave absorbing properties, high surface activity, strong oxidative properties, superparamagnetism, and special optical properties, catalytic properties, photocatalytic properties, photoelectrochemical properties, chemical reaction properties, chemical reaction kinetic properties, and special The physical and mechanical properties. The application of nanomaterials will be a revolution in traditional materials, especially functional materials. The use of nanomaterials in composites will also cause unpredictable and dramatic changes in the development of composites.
Nanocomposites can be divided into two major categories, one is inorganic nanocomposites composed of metal/ceramic, metal/metal, ceramic/ceramic; the other is polymer/inorganic, polymer/polymer Composition of polymer nanocomposites. According to an expert in the epoxy resin industry who researched nanocomposites, the research of polymer nanocomposites in China started late, but it has developed rapidly in the last 2-3 years.
The inorganic nanomaterials used for epoxy resin nanocomposites are Si02, Ti02, Al2o3, Caco3, ZnO, clay and the like. Preliminary results show that nanomaterials can greatly improve the mechanical properties, heat resistance, toughness, scratch resistance and other properties of epoxy composites, and can simultaneously improve the heat resistance and toughness. The current research focus of epoxy nanocomposites is the method of uniform dispersion of nanomaterials in the matrix; the study of composite methods, composite effects, compound rules and composite mechanisms; and the application of epoxy nanocomposites. Nanomaterials and technologies have added high-tech content to the development of epoxy coatings, adhesives, electronic materials, plastics, composites, and functional materials, opening up a new avenue that will inevitably create dramatic changes in the development and application of epoxy materials. .