CAJ | 학술논문

以聚乙烯醇、三聚氰胺为改性剂,改性由环己酮、尿素、甲醛和糠醇缩合而成的糠酮呋喃树脂,该树脂是一种新型铸造用的呋喃树脂。反应分三步：酮醛缩合、脲醛缩合、合成树脂。改性呋喃树脂氮含量、游离甲醛含量都明显降低,树脂强度高,粘度小,附着力好,且该工艺具有生产能耗低,工艺简单,产品耐酸耐碱性能好等优点。文章介绍用新型催化剂合成糠酮呋喃树脂,及改性树脂的方法。旨在开发一种产品性能优异,且生产成本显著降低的糠酮呋喃树脂生产工艺。
이취을희순、삼취청알위개성제,개성유배기동、뇨소、갑철화강순축합이성적강동부남수지,해수지시일충신형주조용적부남수지。반응분삼보：동철축합、뇨철축합、합성수지。개성부남수지담함량、유리갑철함량도명현강저,수지강도고,점도소,부착력호,차해공예구유생산능모저,공예간단,산품내산내감성능호등우점。문장개소용신형최화제합성강동부남수지,급개성수지적방법。지재개발일충산품성능우이,차생산성본현저강저적강동부남수지생산공예。
Taking polyvinyl alcohol,melamine as modifier,to modify furfural cyclohexanone-formaldehyde furan resin which is synthesized by cyclohexanone,urea and furfurylalcohol.The product is a new foundry furan resin.The reaction is divided into three steps： Keto-aldehyde condensation,Urea-formaldehyde condensation,the synthesis of resin.The modified furan resin made by this process has an apparent descent on the content of nitrogen and free formaldehyde.The title product shows high strength,low viscosity,good adhesion,and the process has low energy consumption,simple synthesis technology,and good acid/alkali resistance.The paper introduced a new way to compose furfural cyclohexanone-formaldehyde furan resin with novel catalyst and modify it.It aimed at developing a process that produces a novel furfural cyclohexanone-formaldehyde furan resin which had very good function,as well as an apparent descent on the cost of production.