J. Mater. Sci. Technol. ›› 2016, Vol. 32 ›› Issue (7): 687-694.DOI: 10.1016/j.jmst.2016.02.006

• Orginal Article • Previous Articles     Next Articles

Correlation of Raw Materials and Waterborne Polyurethane Properties by Sequence Similarity Analysis

Xing Zhou1, 2, Changqing Fang1, 2, *, Jing Chen3, Shujuan Li1, Yan Li1, Wanqing Lei1   

  1. 1 School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China; 2 Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, China; 3 Wuxue High School, Hubei 435400, China
  • Received:2015-12-08 Revised:2015-12-28 Online:2016-07-10 Published:2016-10-10
  • Contact: Corresponding author. Ph.D.; Tel.: +86 29 82312038; Fax: +86 29 82312512. E-mail address: fcqxaut@163.com (C. Fang).
  • Supported by:
    The authors acknowledge the financial support provided by Program for New Century Excellent Talents in University by the Ministry of Education of China (Grant No. NCET-12-1045), the Shaanxi Programs for Science and Technology Development (No. 2010K01-096) and Ph.D. Innovation Fund Projects of Xi'an University of Technology (No. 310-252071501).

Abstract: Anionomer-type waterborne polyurethane dispersions (PUDs) were obtained from poly (propylene glycol) (PPG), isophoronediisocyanate (IPDI) and dimethylolpropionic acid (DMPA) through a modified prepolymer isocyanate process. Two series of polyurethanes were prepared (Groups A and B) and a new prediction model based on grey relational analysis is introduced to predict the impact order of raw materials on several properties, such as solids content, viscosity, acid number and electrolytic stability of polyurethanes. It is found that the model can successfully predict the impact of raw materials on the properties through the designed demonstration experiments. Furthermore, the results of the prediction model show that DMPA plays a key role in viscosity, partial acid values and electrolytic stability.

Key words: Dispersion, Material properties, Model, Polyurethane (PU), Stability, Synthesis