Blending Property of Water-Based UV-Curable Polyurethane Acrylate and Epoxy Acrylate

2010 ◽  
Vol 174 ◽  
pp. 385-388
Author(s):  
Fu Qiang Chu
Keyword(s):  
Polymer Networks ◽  
Environmental Scanning Electron Microscopy ◽  
Interpenetrating Polymer Networks ◽  
Environmental Scanning ◽  
Epoxy Acrylate ◽  
Uv Curable ◽  
Polyurethane Acrylate ◽  
Water Based ◽  
Optical And Mechanical Properties ◽  
Printing Ink

Water-based UV-curable prepolymers are novel environmentally friendly materials. The blending property of two kinds of the prepolymers, water-based UV-curable polyurethane acrylate (UVPU) and water-based UV-curable epoxy acrylate (WEA), was studied in this paper. Blending compatibility, curing rate, optical and mechanical properties, and the cross-section morphology of the cured films of UVPU and WEA were investigated by Fourier transform infrared (FTIR), UV-visible spectrophotometer (UV-vis) and Environmental scanning electron microscopy (ESEM). Results indicated that the two prepolymers had good blending compatibility and high curing rate under UV radiation. The elongation at break of the cured film by WEA mixed with 20 wt% UVPU had 1.5 times increase compared to pure WEA, and the gloss increased 23% compared to pure UVPU, but the tensile strength decreased slightly. The morphology showed that the molecules of the two prepolymers polymerized each other and formed a network similar to the structure of Interpenetrating Polymer Networks (IPN). The comprehensive properties of the film were improved by blending of WEA and UVPU, and could be widely applied in the fields of coating varnish or printing ink.

UV-curable interpenetrating polymer networks based on acrylate/vinylether functionalized urethane oligomers

2005 ◽  
Vol 73 (5) ◽  
pp. 254-262 ◽  
Author(s):  
Nilhan Kayaman-Apohan ◽  
Ramazan Demirci ◽  
Mustafa Cakir ◽  
Atilla Gungor
Keyword(s):  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Uv Curable

Formation and Properties of UV-cured Dyane Epoxy Resins and Epoxy-Acrylate Interpenetrating Polymer Networks on their Base

2016 ◽  
Vol 38 (1) ◽  
pp. 40-46
Author(s):  
T.F. Samoilenko ◽  
◽  
N.V. Iarova ◽  
S.M. Ostapiuk ◽  
M.H. Tkalich ◽  
...  
Keyword(s):  
Epoxy Resins ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Epoxy Acrylate

Synthesis and Curing Kinetics of UV-Curable Waterborne Bisphenol-S Epoxy Acrylate/Polyurethane-Acrylate Coating

2012 ◽  
Vol 549 ◽  
pp. 457-461
Author(s):  
Jun Gang Gao ◽  
Feng Li Zhu ◽  
Jiang Bo Yang ◽  
Xiao Qian Liu
Keyword(s):  
Uv Curing ◽  
Curing Kinetics ◽  
Mechanical Analysis ◽  
Curing Temperature ◽  
Coating Film ◽  
Epoxy Acrylate ◽  
Bisphenol S ◽  
Uv Curable ◽  
Polyurethane Acrylate ◽  
Kinetics Of

In ouder to prepare the waterborne UV-curable polyurethane acrylate coatings, the anionic polyurethane acrylate emulsifier and bisphenol-S eopxy acrylate were synthesized. The curing process, kinetics and properties of waterborone UV-curable epoxy acrylate/polyurethanes acrylate coating were investigated by FTIR, DSC and DMA. The results show that the static initial curing temperature Ti is 52.36 oC, peak temperature Tp is 71.58 oC, the finished temperature Tf is 89.15 oC. The curing reaction can be described by two-parameter autocatalytic Šesták-Berggren (S-B) model.This coating has a better UV-curing property. The dynamic mechanical analysis showed that the glass transition temperature Tg of coating film is 52.70 oC.

scholarly journals Mutual sensibilization in epoxyacrylate interpenetrating polymer networks

2021 ◽  
pp. 149-158
Author(s):  
Oleksandr O. Brovko ◽  
◽  
Natalia V. Yarova ◽  
Tetiana F. Samoilenko ◽  
Larysa M. Yashchenko ◽  
...  
Keyword(s):  
Free Radical ◽  
Polymer Networks ◽  
Triethylene Glycol ◽  
Interpenetrating Polymer Networks ◽  
Degree Of Conversion ◽  
Epoxy Acrylate ◽  
Low Viscosity ◽  
First Case ◽  
Sensitizing Effect ◽  
Epoxy Groups

Using the method of IR spectroscopy, the kinetic features of the course of photoinitiated cationic and free radical polymerization in simultaneous epoxyacrylate interpenetrating polymer networks were investigated. The degree and rate of conversion of epoxy groups in the epoxy component (aliphatic diepoxide UP-650D, aliphatic-alicyclic triepoxide UP-650T, and diane epoxides ED-20 and Epicot 828), and the opening of double bonds in acrylate component (triethylene glycol dimethacrylate) were determined. The sensitizing effect of the acrylate component on the degree of conversion of epoxy groups in IPNs with aliphatic diepoxide or aliphatic-alicyclic triepoxide with an epoxy/acrylate ratio of 50/50 wt. % was revealed. For diane epoxies, the opposite regularity of conversion of epoxy groups in the composition of epoxy-acrylate IPNs is observed: in comparison with initial polymer networks, the degree of conversion of epoxy groups was significantly reduced. In the first case of low-viscosity aliphatic and cycloaliphatic epoxides such a sensitization is occurred due to the fact that the simultaneous polymerization of acrylate via a free radical mechanism promotes the decomposition of the photoinitiator and the formation of more macrocations quantity. In second case of more viscous diane epoxy resins, the spatial restriction imposed by the rapidly formed acrylate networks is predominate. That is why the conversion of epoxy groups is reduced and this effect is neutralized.

UV-Curable Coating of Epoxy-Acrylate/Polyurethane-Acrylate Nanocomposites Modified with V-POSS

2011 ◽  
Vol 217-218 ◽  
pp. 559-563 ◽  
Author(s):  
Jun Gang Gao ◽  
Ying Ying Ma ◽  
Hao Jie Lin
Keyword(s):  
Epoxy Acrylate ◽  
Mechanical Loss ◽  
Group V ◽  
Uv Curable ◽  
Pure System ◽  
Polyurethane Acrylate ◽  
Good Adhesive ◽  
Vinyl Group ◽  
Oligomeric Silsesquioxane ◽  
Two Parameter

UV-curable bi-component coating of epoxy-acrylate/polyurethane-acrylate modified with polyhedral oligomeric silsesquioxane containing vinyl group (V-POSS), and UV-cured process and kinetics were investigated by FTIR, DSC, and DMA. The results show that this coating has a good UV-curable property, and the two components have very good compatibility and can co-cure in free radical polymerization. The curing reaction can be described by a two-parameter autocatalytic Šesták-Berggren (S-B) model. The modified UV-curable coating has good adhesive strength for steel and hardness. The mechanical loss peak temperature Tp is highest when the content of V-POSS is 60%, which is increased by 5.2 oC than the pure system.

scholarly journals The Sensitization of Aliphatic Epoxy Photopolymerization in Epoxy-Acrylate Interpenetrating Polymer Networks

2014 ◽  
Vol 2 (1) ◽  
pp. 5-9
Author(s):  
Tetiana Samoilenko ◽  
Nataliia Iarova ◽  
Halyna Menzheres ◽  
Oleksandr Brovko
Keyword(s):  
Ir Spectroscopy ◽  
Potential Application ◽  
Polymer Networks ◽  
Hardness Test ◽  
Interpenetrating Polymer Networks ◽  
Epoxy Acrylate ◽  
Adhesion Test ◽  
Pencil Hardness ◽  
Epoxy Polymers ◽  
Epoxy Groups

The paper discuses the phenomenon of the sensitization of the aliphatic epoxy photopolymerization in the presence of acrylate oligomers while forming epoxy-acrylate interpenetrating polymer networks. The photopolymerization process was studied by IR spectroscopy and the properties of the final products – by the Gardner test, crosshatch adhesion test, and the pencil hardness test. The epoxy groups conversion, which is rather low in aliphatic epoxy polymers, was found to alter with the increase of acrylate compounds content. The materials synthesized on the base of interpenetrating polymer networks were shown to reveal fine properties and may have a potential application as coatings.

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