双恶唑啉化合物的合成及其对胺醛树脂的改性  

Synthesis of bis(oxazoline)and modification of amine-formaldehyde resin

作　　者：葛明[1] 雷毅[1] 

机构地区：[1]四川大学高分子科学与工程学院,四川成都610065

出　　处：《热固性树脂》2014年第6期47-50,共4页Thermosetting Resin

摘　　要：对2,2-（1,3-苯）双（4,5-二氢）恶唑啉（1,3-BOX）的合成工艺进行了优化,并采用NMR及FT-IR证明了产物结构。同时通过DSC以及FTIR研究了1,3-BOX改性胺醛树脂体系的固化反应过程,用DMA以及万能试验机表征了共混体系的玻璃化转变温度及树脂的力学性能。结果表明,以乙酸锌为催化剂,正己烷为带水剂,反应温度110~120℃,反应时间6 h,产物产率达到80%以上,较国外相关文献报道提高了约30%,该工艺更加环保高效。1,3-BOX与胺醛树脂质量比为6∶4时体系综合性能最优,拉伸强度114 MPa,弯曲强度202 MPa,玻璃化转变温度达208℃。The synthesis process of 2,2-（1,3-benzene） bis（4,5-dihydro）-oxazoline（1,3-BOX） was optimized and the product structure was proved by NMR and FT-IR. Meanwhile the curing reaction process of 1,3-BOX modified amine-formaldehyde resin system was investigated by DSC and FTIR. The glass transition temperature and mechanical properties of resin blends were characterized by DMA and universal testing machine. The results showed that the product yield was up to 80% under the followed conditions：zinc acetate as catalyst,n-hexane as water-carring agent,reaction temperature 110-120 ℃ and reaction time 6 h. The yield was increased by about 30% compared with the relevant abroad literature and the process was more environmentally friendly and efficient. The system with mass ratio of 1,3-BOX to amine-formaldehyde resin 6∶4 had the best overall performance. The tensile strength,flexural strength and the glass transition temperature were 114 MPa,202 MPa and 208 ℃,respectively.

关 键 词：双恶唑啉 合成 改性 胺醛树脂 

分 类 号：TQ252.4[化学工程—有机化工] TQ320.6