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Effect of 2,2-Bis(Hydroxymethyl) Propionic Acid Content on the Properties of Aqueous Polyurethane

  • Nan Song
  • Xiulan XinEmail author
  • Bin Li
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 543)

Abstract

As a multi-functional environmental protection material, waterborne polyurethanes (WPUs) has received increasing attention due to their excellent elasticity, such as wear resistance, flexibility and wide range of substrate suitability. In the field of ink printing, waterborne polyurethane materials have became an effective alternative to solvent-based polyurethane adhesives. However, the performance of WPUs still needs to be improved. In this paper, acetone-dilution method was used to synthesize the required waterborne polyurethane with different amount of DMPA. The particle size of the synthetic polyurethane emulsion is determined by the particle size distribution (PSD). Transmission electron microscopy (TEM) was used to confirm that the synthesized emulsion had a spherical structure. By comparing the solids content, the water absorption test and the adhesion test, it was confirmed that the content of DMPA has a great influence on the polyurethane system. As the DMPA content increases, the average particle size of the polyurethane can be reduced, and the adhesion of the emulsion to the substrate can be improved, but the water resistance decreases due to the increase of the hydrophilicity. Therefore, the comprehensive effect is best when the added amount of DMPA is 5%.

Keywords

Waterborne polyurethane Macrodiol DMPA Water absorption 

Notes

Acknowledgements

This study was funded by a National Natural Science Foundation of China (21376008)—Design, Synthesis and Structure-Activity Relationship of Novel Emulsions for Water-based Inks.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Beijing Technology and Business UniversityBeijingChina

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