三聚氰胺固废改性酚醛树脂的合成及其对模塑料性能的影响OA北大核心

The green disposal of solid waste and the resource modification of traditional materials are of great significance to the healthy development of chemical and material industries.In this paper,solid waste OAT(oxiami-nothriazine)was used to modify phenolic resin,the feasibility of reactive introducing OAT into phenolic resin was discussed,and the modified resin was used as the matrix to prepare phenolic moulding compounds(PMC).The in-fluence of modified resin on the properties of PMC was studied.The results showed that OAT had a certain reactivity with formaldehyde,and the viscosity of phenolic resin decreased with the introduction of OAT,but with the further increase of the dosage,the viscosity and polymerization speed increased,but the fluidity decreased significantly,the optimal dosage of OAT was about 8%.PMC prepared with OAT modified phenolic resin have better thermal stability and electrical strength,and other properties are comparable to those of ordinary mouldings.