Synthesis of UV-Curable Urethane Acrylate Zirconium Oxide Nanocomposites as Thermal Insulator

2020 ◽  
pp. 133-136
Author(s):  
Abbas Madhi ◽  
Behzad Shirkavand Hadavand ◽  
Ali Amoozadeh
Keyword(s):  
Zirconium Oxide ◽  
Urethane Acrylate ◽  
Uv Curable ◽  
Thermal Insulator

UV-curable urethane acrylate zirconium oxide nanocomposites: Synthesis, study on viscoelastic properties and thermal behavior

2018 ◽  
Vol 52 (21) ◽  
pp. 2973-2982 ◽  
Author(s):  
Abbas Madhi ◽  
Behzad Shirkavand Hadavand ◽  
Ali Amoozadeh
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Zirconium Oxide ◽  
Viscoelastic Properties ◽  
Fourier Transform Infrared ◽  
Urethane Acrylate ◽  
Oxide Nanoparticles ◽  
Uv Curable ◽  
Zirconium Oxide Nanoparticles

In the present study, UV-curable urethane acrylate was synthesized by the reaction of isophorone diisocyanate with1,4-butanediol and 2-hydroxyethyl methacrylate in the presence of dibutyltin dilaurate as a catalyst and acetone as a solvent. The structure of urethane acrylate oligomer was characterized by nuclear magnetic resonance and Fourier transform infrared spectroscopy. In order to examine the influence of inorganic phase of zirconium oxide nanoparticles on characteristics of synthesized resin, organic–inorganic nanocomposites were prepared by urethane acrylate resin and nano zirconium oxide with 1, 3, and 5 wt%. In order to improve nanoparticles dispersion, the surface of zirconium oxide nanoparticles was modified by vinyltrimethoxysilane coupling agent. The analysis of nanoparticle surface modification by Fourier transform infrared spectroscopy and scanning electron microscopy suggested a good reaction of vinyltrimethoxysilane with the surface of zirconium oxide nanoparticles. The characteristics of the prepared nanocomposites were evaluated through thermogravimetric analysis and dynamic mechanical thermal analysis. All of conducted tests represented improved thermal stability properties, storage modulus, and viscoelastic properties of urethane acrylate–zirconium oxide nanocomposites in comparison with polymeric coatings without nanoparticles.

Transparent water-based UV-curable urethane acrylate ink-jet ink

2021 ◽  
pp. 1-11
Author(s):  
Atasheh Soleimani-Gorgani ◽  
Farhood Najafi ◽  
Fatemeh Mohammadrezaei ◽  
Behzad Shirkavand Hadavand
Keyword(s):  
Urethane Acrylate ◽  
Uv Curable ◽  
Ink Jet ◽  
Water Based ◽  
Transparent Water

Synthesis and characterization of UV curable urethane acrylate oligomers containing ammonium salts for anti-fog coatings

2017 ◽  
Vol 110 ◽  
pp. 122-127 ◽  
Author(s):  
J.W. Hong ◽  
H.K. Cheon ◽  
S.H. Kim ◽  
K.H. Hwang ◽  
H.K. Kim
Keyword(s):  
Ammonium Salts ◽  
Synthesis And Characterization ◽  
Urethane Acrylate ◽  
Uv Curable

Eco-friendly castor oil-based UV-curable urethane acrylate zinc oxide nanocomposites: Synthesis and viscoelastic behavior

2019 ◽  
Vol 54 (1) ◽  
pp. 101-110 ◽  
Author(s):  
Abbas Madhi ◽  
Behzad S Hadavand
Keyword(s):  
Zinc Oxide ◽  
Castor Oil ◽  
Zinc Oxide Nanoparticles ◽  
Viscoelastic Behavior ◽  
Environmentally Friendly ◽  
Urethane Acrylate ◽  
Nano Zno ◽  
Uv Curable ◽  
Maximum Value

Attention to environmental problems and the importance of maintaining it have caused the researchers to pay more attention in this regard. The production of polymers and resins has increased in recent years and has affected by environmental pollution due to their long-term degradation. An appropriate solution to this problem is the synthesis of degradable and environmentally friendly polymers and resins. Using natural materials in the synthesis of polymers and resins can help them to be environmentally friendly. The purpose of this research is to synthesize urethane acrylate resins using natural resources. For this purpose, the urethane acrylate pre-polymer was synthesized with castor oil. Then, using modified zinc oxide nanoparticles with 1, 3 and 5 wt% urethane acrylate zinc oxide nanocomposites were produced. The use of castor oil as a degradable part and lack of organic solvent in radiation systems led to the creation of an environmentally friendly resin. Subsequently, the viscoelastic behavior of the prepared nanocomposite was evaluated. Spectrometry results confirm the synthesized resin structure. The morphology of nanocomposites confirmed the proper particle size distribution in a 3 wt.% sample. The results of the dynamic mechanical thermal analysis test showed that increasing the amount of modified nano ZnO could increase the glass transition temperature, and the maximum value was observed in 5 wt.% modified nano ZnO (69.7℃).

Properties of UV-Curable Hyperbranched Urethane-Acrylate Modified Acrylic Monomer Coatings

2011 ◽  
Vol 17 (4) ◽  
Author(s):  
Asta MILINAVIČIŪTĖ ◽  
Virginija JANKAUSKAITĖ ◽  
Pranas NARMONTAS
Keyword(s):  
Urethane Acrylate ◽  
Uv Curable ◽  
Acrylic Monomer ◽  
Hyperbranched Urethane Acrylate

Synthesis of Novel Hyperbranched Polyurethane Acrylate Based on Pentaerythritol

2015 ◽  
Vol 731 ◽  
pp. 515-519
Author(s):  
Yu Xiu Wang ◽  
Guang Xue Chen
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Single Step ◽  
Urethane Acrylate ◽  
Uv Curable ◽  
Hyperbranched Polyesters ◽  
Three Generations ◽  
Two Stages ◽  
High Degree

To study the structure and properties of hyperbranched polyesters as well as the modified ones. Three generations of hyperbranched polyesters named HBPE-1, HBPE-2 and HBPE-3 were synthesized by the reactions from pentaerythritol and 2,2-dihydroxy-methyl-propionic acid by single-step polycondensation. They were characterized by 1H NMR, 13C NMR and the results indicated they possessed a high degree of branching. Then homemade urethane acrylate prepolymer reacted with three generations of hydroxyl-terminated hyperbranched polyesters introducing C=C contents, the product was characterized by FT-IR, DSC, TGA techniques. The results of TGA showed well thermal stability of all the products. TGA curves of the modified HBPES showed two stages, 280-350°C means pyrolysis of main chain ester section and 400-450°C means pyrolysis of urethane acrylate section. The results of DSC indicated that glass transition temperature increased with the number of the hyperbranched polyester units’ increment. What’s more, glass transition temperature of HBPE-3 was 48.13°C. HPUA-3 was semi-crystalline material, its glass transition temperature was-12.59°C, cold crystallization temperature Tc 110.92°C, melting temperature Tm 134.74°C. Since the introduction of a large number of unsaturated units to the end, the resin can be introduced into the UV-curable systems for paints, inks, adhesives and some other fields.

UV-curable hyperbranched urethane acrylate oligomers modified with different fatty acids

2017 ◽  
Vol 74 (12) ◽  
pp. 5049-5063 ◽  
Author(s):  
Zhen Jiao ◽  
Qianqian Yang ◽  
Xianwei Wang ◽  
Chenchen Wang
Keyword(s):  
Fatty Acids ◽  
Urethane Acrylate ◽  
Uv Curable ◽  
Hyperbranched Urethane Acrylate
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