Recently, coal of Shanxi of academy of sciences changes of a Hou Xianglin, Deng Tian to study a group, in the light of epoxy resin of solidify of deserted acid anhydride base composite material (bridge of wind report carbon) begin chemical degradation and resource to change reclaim use technical research and development, rupture optionally below gentle condition ester key, reclaim degradation child is aether of glycerine of double phenolic A2, methylic benzene of 4 hydrogen adjacent 2 formic acid, and the carbon fiber in composite material or fibre glass, epoxy resin of solidify of implementation acid anhydride base the complete constituent of composite material reclaims, this technology already applied for series invention. Among them, the methodological ” of the epoxy resin degradation of solidify of acid anhydride of a kind of catalysis already got “ accredit. Aether of glycerine of double phenolic A2 is degradation child a kind of scent is multivariate mellow, can serve as multivariate mellow raw material is used at polyurethane synthesis afresh, waterproof of preparation polyurethane elastomer, polyurethane hard bubble, soft bubble, polyurethane; Child of another kind of degradation is methylic 2 formic acid can regard benzene of 4 hydrogen adjacent as preparation solidify agent methylic the raw material of anhydride of 4 hydrogen benzene, use at the solidify process of epoxy resin again; Reclaiming carbon fiber or fibre glass, intensity loss is small, can make short cut fiber, colophony of sex of as thermoplastic as other or hot solid again compound. Rate of degradation of whole process colophony is more than 99% , reclaim rate be more than 95% , fiber reclaims rate be more than 96% , fiber intensity loss is less than 5% ; Additional, this technology still can control preparation of degree of depolymerization of epoxy resin of acid anhydride solidify porous material. With traditional high temperature heat solves methodological photograph to compare, technology of set of depolymerization of chemistry of epoxy resin of solidify of this acid anhydride has depolymerization requirement gentle, specific power consumption low, reaction is alternative system of good, degradation can be used circularly, fiber injures small, product to add be worth demand of tall, market process of big, production does not have the advantage such as young member exhaust emission.