Effect of Chain Extenders on the Application of Aqueous Polyurethane Dispersions in Pigment Dyeing
Aqueous polyurethane dispersion (PUD) has been investigated in many fields. However, little work has been reported about application of environment-friendly aqueous polyurethane dispersions in pigment dyeing. Aqueous polyurethane dispersion based on polybutylene adipateglycol (PBAG), isophorone diisocyanate (IPDI), and dimethylol propionic acid (DMPA) were prepared by the prepolymer isocyanate process. Time-dependent function of free and residual NCO group was measured by dinbutylaminetoluene method during synthesis. Reaction product was measured by FT-IR spectroscopy and thermogravimetric analysis (TGA). Comparied the application of four types of chain extenders, N-(2Hydroxyethyl) ethylenediamine (AEEA) was found better performance on adhesive strength. Additionally, different fixation temperature was investigated in the appliation, and PUD with the chain extender of AEEA was found having an unfavourable influence if the fixtion temperature was higher than 150 oC.
aqueous polyurethane dispersion pigment dyeing chain extender
LIU Lingling ZHAO Tao XIAJun
College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai Shanghai 20 College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai Shanghai 20 Jiangsu Hutang Textiles Science and Technology Development Center, Changzhou 213000, P.R.China
国际会议
The 12th International Wool Research Conference(第十二届国际羊毛会议12th IWRC)
上海
英文
363-367
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）