Thermal Conductivity and Viscoelastic Properties of UV-curable Urethane Acrylate Reinforced with Modified Al2O3 Nanoparticles


Journal: Vol.10, No.3, Summer 2017 - Article 7   Pages :  193 Until 204



Article Code:
PCCC-2017-07-27-365

Authors:
A. Madhi: Semnan University - Faculty of Chemistry
B. Shirkavand Hadavand: Institute for Color Science and Technology - Departments of Resin and Additives
A. Amoozadeh: Semnan University - Faculty of Chemistry


Article's abstract:

In this study, UV-curable urethane acrylate UA synthesized and then characterized by FTIR and HNMR. For better dispersion of nanoparticles in polymeric matrix, nano Al2O3 was modified by silane coupling agent and then its nanocomposites were prepared. The characteristics of synthesized nanocomposites were analyzed by TGA, DMA and infrared thermography. The results signify that adding nano Al2O3 to UA matrix leads to improvement of thermal stability and viscoelastic properties of the nanocomposite. Infrared thermography analysis shows that adding Al2O3 to UA causes the surface reflection coefficient to increase and the heat transfer of UA nanocomposites to reduce. Therefor one could point that UA/Al2O3 3 and 5 wt is a thermal barrier as a heat insulator.


Keywords:
Urethane acrylate, Nanocomposite, Nano aluminum oxide, Viscoelastic properties, Thermal conductivity

References:
1. D. k. Chattopadhyay, D.C. Webster, Thermal stability and flame redundancy of polyurethanes, Prog. Polym. Sci., 34(2009), 1068-1133. 2. D.H. Gittelman, Environmental Health and Safety, and Plastic Material Selection, Polym. Plast. Technol. Eng., 8(1977), 35-62. 3. D. Ratna, J. Karger-Kocsis, Recent advances in shape memory polymers and composites: A review, J. Mater, Sci., 43(2008), 254-269. 4. Z. Hesari, B. Shirkavand Hadavand , M. Mahmoodi Hashemi, Fabrication and Study of Structural, Optical and Electrical Properties of UV curable Conductive Polyurethane Acrylate Films Containing Polyaniline-Co3O4 nanocomposites, Prog. Color Colorants Coat., 9 (2016), 41-52 5. B. Finnigan, D. Martin, P. Halley, R. Truss, Campbell K, Morphology and properties of thermoplastic polyurethane nanocomposites incorporating hydrophilic layered, Polymer., 45(2004), 2249-2260. 6. C. Bluestein, Urethane oligomers for solventless coatings, adhesives, and elastomers, Polym. Plast. Technol. Eng., 17(1981), 83-93. 7. C. Decker, UV radiation curing chemistry, Pigment


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Manager-in-Chief:
Prof. Zahra Ranjbar
Editor-in-Chief:
Dr. Farahnaz Nourmohammadian
Assistant Editor:
Dr. Mozhgan Hosseinnezhad
ISSN:
2008-2134
ISSN (online):
2383-1790
Publisher:
Institute for Color Science and Technology (ICST)

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