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

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.

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Synthesis and Curing Kinetics of UV-Curable Waterborne Bisphenol-S Epoxy-Acrylate/Polyurethane-Acrylate/Methylacryloylpropyl-POSS Nanocomposites

Journal of Macromolecular Science Part B ◽

10.1080/00222348.2014.970953 ◽

2014 ◽

Vol 53 (12) ◽

pp. 1800-1813 ◽

Cited By ~ 6

Author(s):

Jungang Gao ◽

Feng Li Zhu ◽

Jianbo Yang ◽

Xiaoqiian Liu

Keyword(s):

Curing Kinetics ◽

Epoxy Acrylate ◽

Bisphenol S ◽

Uv Curable ◽

Polyurethane Acrylate ◽

Kinetics Of

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.174.385 ◽

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.

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Dynamic Mechanical and Thermal Behavior of UV-Curable Coating of Glycidyl Methacrylate /Polyurethane-Acrylate Modified with MAP-POSS

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.2077 ◽

2011 ◽

Vol 233-235 ◽

pp. 2077-2080 ◽

Cited By ~ 2

Author(s):

Jun Gang Gao ◽

Ying Ying Ma ◽

Hao Jie Lin ◽

Li Huo

Keyword(s):

Thermal Behavior ◽

Glycidyl Methacrylate ◽

Dynamic Mechanical Properties ◽

Mechanical Analysis ◽

Decomposition Temperature ◽

Polyhedral Oligomeric Silsesquioxanes ◽

Uv Curable ◽

Pure System ◽

Dynamic Mechanical ◽

Polyurethane Acrylate

UV-curable bi-component coating of glycidyl methacrylate (GMA)/polyurethane –acrylate (PUA) modified with the methylacryloylpropyl polyhedral oligomeric silsesquioxanes (MAP-POSS) were prepared. The dynamic mechanical properties and thermal behavior of nano-hybrid coating (GMA/PUA/MAP-POSS) were characterized with dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA) and the Fourier transform infrared spectrometer (FTIR). The results indicate the three components have very good compatibility and can co-cure in UV-radialization by a free radical polymerization. The addition of MAP-POSS enhanced the thermal properties, the mechanical loss peak temperature Tp is 85.5°C when the amount of MAP-POSS is 10wt%, which is increased by 12.6 °C than the pure system. When the content of MAP-POSS is 20wt%, thermal decomposition temperature in the initial stages was increased by 7 °C than that of the pure GMA/ PUA.

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.549.457 ◽

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.

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Cure Kinetics and Thermal Property of UV-Curable Polyester Nanocomposites Coating Modified with MAP-POSS

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.150-151.821 ◽

2010 ◽

Vol 150-151 ◽

pp. 821-824

Author(s):

Jun Gang Gao ◽

Bei Bei Sun ◽

Xing Li

Keyword(s):

Glycidyl Methacrylate ◽

Unsaturated Polyester ◽

Cure Kinetics ◽

Polyhedral Oligomeric Silsesquioxanes ◽

Loss Peak ◽

Mechanical Loss ◽

Uv Curable ◽

Reaction Activation Energy ◽

Kinetics Of ◽

Two Parameter

The UV-curable unsaturated polyester (UPR) was modified with glycidyl methacrylate and methylacryloylpropyl polyhedral oligomeric silsesquioxanes (MAP-POSS), and the cure kinetics of MAP-POSS/UPR system was investigated by non-isothermal DSC. The result shows that UPR, glycidyl methacrylate and MAP-POSS 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 average reaction activation energy Ea for 6% and 9% MAP-POSS content is 73 kJ/mol and is lower than 0% ( about 82kJ/mol). The mechanical loss peak temperature Tp of curing nanocomposites increase with increasing MAP-POSS content and has a highest value when MAP-POSS content is 9%, which is 114.1 oC and higher about 12 oC than pure UPR.

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