丙烯酸改性松香基TDI型聚氨酯的制备及表征  

Preparation and Characterization of Acrylic Modified Rosin Based TDI Polyurethane

作　　者：边峰[1] 余彩莉[1] 陈勇 张淑芬[1,2] 张发爱[3] Feng Bian;Caili Yu;Yong Chen;Shufen Zhang;Fa’ai Zhang(College of Chemical and Biology Engineering,Guilin University of Technology,Guilin 541004,China;College of Materials Science and Engineering,Guilin University of Technology,Guilin 541004,China;State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]桂林理工大学化学与生物工程学院,广西桂林541004 [2]大连理工大学精细化工重点实验室,辽宁大连116024 [3]桂林理工大学材料科学与工程学院,广西桂林541004

出　　处：《高分子材料科学与工程》2019年第1期25-30,共6页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51863007;31160148);广西自然科学基金重点项目(2012GXNSFDA053006)

摘　　要：以丙烯酸改性松香与甲基丙烯酸缩水甘油酯(GMA)的酯化物(RAG)为二元醇,甲苯-2,4-二异氰酸酯(TDI)为单体,制备了预聚物,然后用1,4-丁二醇进行扩链,合成了丙烯酸改性松香基TDI型聚氨酯(RPU)。利用红外光谱、核磁共振氢谱、热重分析、差示扫描量热分析、X射线衍射分析等对RPU进行测试表征,探讨了单体比例对RPU涂膜性能、相对分子质量、黏度及接触角的影响。结果表明,随着RAG含量增加,RPU热稳定性增强,玻璃化转变温度升高,静态水接触角增大,相对分子质量减小,黏度降低;当n(TDI)∶n(RAG)∶n(1,4-BDO)=1. 2∶0. 8∶0. 4时,RPU涂膜综合性能较优。An acrylic modified rosin-based polyurethane (RPU) was prepared by prepolymer process using a-crylic acid rosin and glycidyl methacrylate (GMA) ester (RAG) as diol,toluene-2,4-diisocyanate (TDI) as monomer,and 1,4- butanediol (1,4-BDO)as chain extender. The RPU was characterized by FT-IR,TGA, DSC,XRD,1H-NMR, contact angle analysis,molecular weight and viscosity analysis. And the influence of the proportion of different monomers on the performance of the film was discussed. The results show that with increase of the RAG content in the monomer ratio, the thermal stability, glass transition temperature and static water contact angle of RPU resin increase,molecular weight decreases,while the viscosity of the RPU decreases. When the monomer ratio for n(TDI): n(RAG): n(1,4-BDO)=1.2 : 0.8 : 0.4,the comprehensive performance of the RPU film is prominent.

关 键 词：松香 丙烯酸 甲基丙烯酸缩水甘油酯 聚氨酯 涂膜 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]