低醛三聚氰胺树脂的制备与工艺研究  

Study on preparation and technology for melamine resin with lower aldehyde content

作　　者：陈明月[1] 李文波[1] 宁平[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《中国胶粘剂》2011年第11期1-5,共5页China Adhesives

摘　　要：以三聚氰胺(M)、甲醛(F)和乙二醇(EG)为主要原料,三乙醇胺为催化剂,己内酰胺、H2O2为甲醛吸收剂,采用低n(F)∶n(M)比例、乙二醇醚化MF(三聚氰胺-甲醛)树脂、三聚氰胺分次加料和添加甲醛吸收剂等手段,制备MF树脂。研究结果表明:当n(F)∶n(M)=2.5∶1、n(EG)∶n(M)=2.0∶1、pH值为8～9、反应温度为80℃、三聚氰胺分次加料量为50∶40∶10(质量比)和n(己内酰胺)∶n(H2O2)∶n(甲醛)=10∶5∶100时,制成的MF树脂具有相对较低的游离甲醛含量(0.13%)和相对较长的储存稳定期(>120 d)。With melamine（M）,formaldehyde（F） and glycol（EG） as main raw materials,triethanolamine as catalyst,caprolactam and H2O2 as formaldehyde absorbents,a MF（melamine-formaldehyde） resin was prepared by some meanses such as lower molar ratio of n（F）∶n（M）,MF etherified by glycol,thrice adding melamine and adding formaldehyde absorbent.The research results showed that the MF resin had reversely lower free formaldehyde contents（0.13%） and reversely longer storage stable time（ 120 d） when molar ratios of n（F）∶n（M）,n（EG）∶n（M） and n（caprolactam）∶n（H2O2）∶n（formaldehyde） were 2.5∶1,2.0∶1 and 10∶5∶100 respectively,pH value was 8-9,reaction temperature was 80 ℃,mass ratio of thrice adding melamine was 50∶40∶10.

关 键 词：三聚氰胺-甲醛树脂 游离甲醛 木材胶粘剂 甲醛吸收剂 

分 类 号：TQ323.3[化学工程—合成树脂塑料工业]