Preparation and Characterization of Aqueous Polyurethane Dispersions Derived from Anionic Polyester Diols
Aqueous polyurethane (APU) dispersions with improved hydrophilicity were presented and characterized.In order to make APU products more competitive,anionic diols and dimethylopropanic acid (DMPA) were introduced into the macromoleculars of APU.The particle sizes of the APU dispersions have been reduced from 0.7~3μm to 0.05~0.6μm,and the storage stability has been prolonged from 6 months to 12 months.It is efficient to prepare the self-emulsifiable APU dispersions by applying anionic polyester diols and using triethanolamine (TEOA) as a neutralization agent.
Aqueous polyurethane Anionic polyester diols Neutralization agent
Chen Xiao-dong Yi Yu-hua
School of Mechanical and Automotive Engineering, South China University of Technology,Guangzhou, 510 School of Mechanical and Automotive Engineering, South China University of Technology,Guangzhou, 510
国际会议
太原
英文
17-20
2012-06-23(万方平台首次上网日期,不代表论文的发表时间)