Application of fumed silica in epoxy resin

Epoxy resin refers to a class of polymers containing more than two epoxy groups in a molecule. It is a product of the shrinking of epoxy chloropropane with BPA or polyols. Because of the chemical activity of epoxy base, a variety of compounds containing active hydrogen can be used to open the ring, curing cross-linking to create a mesh structure, so it is a thermosolytic resin

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(Epoxy Adhesives)
Epoxy Resin Application Industry:
China has been studying epoxy resins since 1958, and has invested in industrial production at a rapid pace, has been booming throughout the country, in addition to the production of ordinary BPA-epoxy propane epoxy resins, but also the production of various types of new epoxy resins to meet the urgent needs of national defense construction and national economic sectors. Epoxy resins are currently mainly used in the coatings and electronics industries. Epoxy for composite molding (mainly used in printed circuit boards in the electronics industry), anti-corrosion epoxy coatings, water-based epoxy coatings and other industries are the main applications of epoxy resins.
with the development of science and technology, the emergence of nanomaterial-gas-phase silicon dioxide also provides new opportunities for the application of new resin-based composite materials.
(gas phase silica)
gas phase silicon dioxide in epoxy resin application principle:
in the use of gas phase silicon dioxide modified epoxy resin composite material, gas phase silica is mainly distributed in the chain of polymer materials, due to its surface serious mating and huge surface area, as well as the characteristics of surface hypoxia, so that Gas-phase silica shows strong activity, it is easy to cooperate with the oxygen chain of epoxy ring molecules, thereby improving the strength of epoxy composite materials, while some gas-phase silica particles are still distributed in the gaps in the polymer chain, this part of the nanoparticles have a high mobility, so that the toughness and stretch of resin-based composite materials have been greatly improved.
Due to the high fluidity and small size effect of gas-phase silica, the surface of epoxy resin composite materials added to gas-phase silica is denser, the coefficient of friction is smaller, and the high strength of gas-phase silica makes the wear resistance of epoxy-based composites added to gas-phase silica greatly enhanced.
(Gas-phase silicon dioxide surface structure)
using gas-phase silica to ultraviolet light has a strong reflective properties, the gas-phase silicon dioxide added to epoxy resin, can greatly reduce the degradation of UV light to epoxy resin, so as to delay the aging of epoxy resin-based composite materials. The modified epoxy resin material through gas-phase silica has excellent mechanical properties, thermal properties and weather resistance, thus greatly improving the comprehensive performance of epoxy resin.
(stretch performance)
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