A kind of thermosetting resin composition

Abstract

Provided is a thermosetting resin composition comprising a phosphorus-containing active ester, the thermosetting resin composition has the advantages of good thermal stability, moisture and heat resistance, a low dielectric constant and a dielectric loss tangent, a low water absorption, a halogen-free flame retardant effect, etc., and it has excellent processability. Also provided is a use of the thermosetting resin composition in a resin sheet, a resin composite metal foil, a prepreg, a laminate, a metal foil laminate and a printed wiring board.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a thermosetting resin composition, a prepreg using it and a laminated board for printed circuits. Background technique [0002] Traditional printed circuit laminates usually use brominated flame retardants to achieve flame retardancy, especially tetrabromobisphenol A epoxy resin, this brominated epoxy resin has good flame retardancy, but it is in Combustion produces hydrogen bromide gas. In addition, in recent years, carcinogens such as dioxin and dibenzofuran have been detected in the combustion products of electronic and electrical equipment wastes containing halogens such as bromine and chlorine, so the application of brominated epoxy resins is limited. On July 1, 2006, the EU's two environmental protection directives "Directive on Waste Electrical and Electronic Equipment" and "Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical an...

AI Technical Summary

Problems solved by technology

[0005] Dicarboxyarylhydrocarbyl phosphine oxide is a reactive phosphorus-containing curing agent, which can undergo a curing reaction with epoxy resin, but because its active group is carboxyl, it will generate a more polar secondary after reacting with epoxy resin. Hydroxyl, resulting in poor dielectric properties of the cured product

Moreover, the carboxyl group has strong reactivity, and its process control is too difficult

In CN103384674A, polyphosphonate or / and phosphonate-carbonate copolymer and epoxy composition with hydroxyl groups are used to form a composition, and its active group is a phenolic hydroxyl group, which also has the problem of poor dielectric properties

Disclosed in CN103694642A adopts epoxy resin, cyanate compound or / and cyanate prepolymer, polyphosphonate or / and phosphonate-carbonate copolymer to prepare the non-conductive material with good dielectric performance and heat and humidity resistance. Halogen UL94V-0 is flame retardant, but its peel strength, interlayer adhesion and bending strength are low

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