年产2500吨脲醛树脂胶黏剂的合成工艺设计

ABSTRACUrea formaldehyde resin,referred to as UF,is a high molecular polymer obtained bythe reaction of urea and formaldehyde,through addition and polycondensation.But so far,the specific structure has not been determined.In recent years,with the continuousdevelopment of industrialization in China,the application of urea formaldehyde resin inwood-based panel is more and more widely.In this design,the synthesis process of ureaformaldehyde resin adhesive with an annual output of 2500 tons was designed to furtherimprove the performance of urea formaldehyde resin.At present,the production of ureaformaldehyde resin is mainly through continuous method and batch method.In this design,batch method is selected for production.Firstly,the parameters of each influencing factorand modifier are determined,and the flow chart of weak base weak acid weak base processwith control point is drawn.Then the material balance and heat balance of the whole processare carried out,and finally the main equipment reactor is calculated and selected,Completethe designKey words:Urea formaldehyde resin:Adhesive:Intermittent method;reaction kettle