Thermosetting resin composition

Abstract

The invention provides a thermosetting resin composition. The thermosetting resin composition comprises esterified dihydroxyphenyl phosphaphenanthrene, has the advantages of favorable thermal stability, heat and humidity resistance and tenacity, low dielectric constant and dielectric loss angle tangent, low water absorption, excellent halon-free and flame-retardant effect and the like, and also has favorable workability. The invention further provides application of the thermosetting resin composition to resin sheets, resin and metal composite foils, prepregs, laminated boards, metal foil cladlaminated boards and printed circuit boards.

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] DOPO-HQ is a reactive phosphorus-containing curing agent that can undergo curing reactions with epoxy resins. However, because its active groups are phenolic hydroxyl groups, it will generate secondary hydroxyl groups with high polarity after reacting with epoxy resins, resulting in The dielectric properties of the cured product are poor

Disclosed in CN103965249A is the preparation method and its use of active esters with phosphaphenanthren

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