Formula of flame retardation epoxy resin

Abstract

The invention discloses a formula of flame retardation epoxy resin, which comprises epoxy resin and an auxiliary additive. The auxiliary additive comprises a fire retardant, a cross-linking agent, a coupling agent, a filler, a dispersant and a mildew inhibitor; the fire retardant is aluminium hydroxide, the cross-linking agent is dicumyl peroxide, the coupling agent is amino propyl triethoxysilane, the filler is alumina powder, the dispersant is polyacrylamide, and the mildew inhibitor is phenol. According to the invention, the fire retardant and a plurality of auxiliary additives are added in epoxy resin, the flame retardation epoxy resin has good flame retardation performance, no halogen element is contained, and the flame retardation epoxy resin has the advantages of environmental protection and no pollution, simultaneously, the mutual cooperation of a plurality of additives can keep the physical and chemical performance of the flame retardation epoxy resin, and the physical and chemical performance of the flame retardation epoxy resin are increased at large degree.

Description

technical field [0001] The invention relates to a formula, in particular to a formula of flame-retardant epoxy resin. Background technique [0002] Cured epoxy resin has excellent electrical insulation properties and physical and mechanical properties, and is widely used in electrical appliances, electronics, machinery industries and other fields. However, its oxygen index is only about 19.5, which is a flammable substance. In recent years, various application fields have put forward higher requirements for its flame resistance, and extensive and in-depth research has been carried out. [0003] There are two methods of flame retardant for cured epoxy resin: additive flame retardant and reactive flame retardant. The additive type is to add various flame-retardant additives to the epoxy resin compound to make the material have flame-retardant properties. The additive type is to add various flame-retardant additives to the epoxy resin compound to make the material have flame...

AI Technical Summary

Problems solved by technology

The additive type is cheap and easy to implement, and it is the main method currently used. However, the added flame retardant additives are generally easy to migrate and seep out, thereby affecting other properties of the epoxy resin, and most of the flame retardants used in the additive type are halogen flame retardants. The flame retardant efficiency is high, but it is restricted by more and more environmental protection requirements

The reactive type is to introduce a flame-retardant structure into the epoxy resin, so that the flame-retardant substance is not easy to migrate, and the flame-retardant effect is good, but relatively speaking, it is not easy to control during the reaction process, and it is easy to cause changes in other properties, so it cannot be effectively carried out. control, and thus are very limited