| 低醛三聚氰胺树脂的制备与工艺研究 |
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| 引用本文： | 陈明月,李文波,宁平. 低醛三聚氰胺树脂的制备与工艺研究[J]. 中国胶粘剂, 2011, 20(11) |
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| 作者姓名： | 陈明月 李文波 宁平 |
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| 作者单位： | 华南理工大学材料科学与工程学院,广东广州,510640 |
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| 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)。
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| 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 |
Study on preparation and technology for melamine resin with lower aldehyde content |
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| Chen Mingyue,Li Wenbo,Ning Ping. Study on preparation and technology for melamine resin with lower aldehyde content[J]. China Adhesives, 2011, 20(11) |
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| Authors: | Chen Mingyue Li Wenbo Ning Ping |
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| Affiliation: | Chen Mingyue,Li Wenbo,Ning Ping(College Of Material Science and Engineering,South China University of Science and Engineering,Guangzhou 510640,China) |
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| Abstract: | 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. |
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| Keywords: | melamine-formaldehyde resin free formaldehyde adhesive for wood formaldehyde absorbent |
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