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

Synthesis of melamine solid waste modified phenolic resin and its influence on the properties of moulding compounds

固体废弃物的绿色化处置与传统材料的资源化改性对当前化工与材料类产业的健康发展具有重要的意义。本文采用固体废弃物OAT(oxiaminothriazine)对酚醛树脂进行改性,探讨了OAT反应性引入酚醛树脂的可行性,以获得的改性树脂作为基体制备了酚醛模塑料,探讨了改性树脂对模塑料性能的影响。结果显示:OAT与甲醛具有一定的反应性,OAT的引入使酚醛树脂的黏度有所下降,但随着用量的进一步增加,黏度增加,聚合速度加快,流动度显著降低,OAT的用量在8%左右为宜;采用OAT改性酚醛树脂制备的模塑料具有较好的热稳定性和电气强度,其他性能与普通模塑料相当。

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(oxiaminothriazine)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 influence 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.