Paper Title:
Synthesis and Properties of Waterborne Polyurethane-Acrylate Hybrid Emulsion Modified by Organic Silicane
  Abstract

Waterborne polyurethane emulsions were synthesized with isophorone diisocyanate(IPDI), dihydromethyl propionic acid(DMPA) and poly-ε-caprolactone glycol(PCL), and then reacted with hydroxy-ethyl acrylate(HEA) and 3-aminopropyltriethoxylsilane(APTES) to cap the terminal -NCO groups. The polyurethane emulsions were used to copolymerize with acrylates to synthesize the modified waterborne polyurethane-acrylate hybrid emulsions. The structure, thermal stability and crystallinity of modified polyurethane were studied by FTIR, TG, XRD and the mechanical properties of modified polyurethane films was also investigated. The results show that crystallization of the modified waterborne polyurethane decreases and thermal stability is improved. When the mass fraction of acrylate is 20% and APTES content is 15%, tensile strength of the modified polyurethane films can reach 23.9MPa and elongation at break is 247%.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Energy Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
1532-1537
DOI
10.4028/www.scientific.net/AMR.287-290.1532
Citation
X. J. Lai, Y. D. Shen, L. Wang, "Synthesis and Properties of Waterborne Polyurethane-Acrylate Hybrid Emulsion Modified by Organic Silicane", Advanced Materials Research, Vols. 287-290, pp. 1532-1537, 2011
Online since
July 2011
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Price
$32.00
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