NDLI: Influence of temperature and light intensity on the photocuring process and kinetics parameters of a pigmented UV curable system

Content Provider	Springer Nature Link
Author	Kardar, Pooneh Ebrahimi, Morteza Bastani, Saeed
Copyright Year	2014
Abstract	The photopolymerization of pigmented coatings is a great challenge and hardly investigated in the literature. Therefore, in this work, the effect of photopolymerization temperature and light intensity on the curing behavior of a TiO$_{2}$-pigmented UV curable epoxy acrylate system was investigated by using photo-differential scanning calorimetry (photo-DSC) analysis. The rate of conversion and ultimate conversion at four different temperatures (i.e., 25, 45, 65, and 85 °C) and four light intensities (i.e. 2, 20, 40 and 80 mW cm$^{−2}$) for unpigmented and pigmented formulations were measured. The effect of photo-polymerization temperature and light intensity on the kinetics constants was also evaluated. It was observed that the rate of conversion and final conversion values were affected by the temperature and UV-light intensity. It was seen that the rate of conversion and ultimate conversion had their maximum values at 65 °C for unpigmented formulations. However, in pigmented formulations, these two parameters improved by increasing the temperature even up to 85 °C. Increasing the temperature caused an increase in the amount of propagation and termination rate constants in both pigmented and unpigmented formulations although the changes in the pigmented formulation were more pronounced. It was observed that the rate of polymerization and ultimate conversion for unpigmented formulations increased by increasing the light intensity up to 20 mW cm$^{−2}$ and then decreased. On the other hand, it was found that these two parameters increased by increasing light intensity up to 40 mW cm$^{−2}$ when pigmented formulations used. Finally, the dependence of termination and propagation kinetics constants on light intensity was established for both unpigmented and pigmented coatings.
Starting Page	541
Ending Page	549
Page Count	9
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	118
Issue Number	1
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-07-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pigmented UV curable system Light intensity Temperature Photo-DSC Epoxy acrylate TMPTA Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effects of silane precursors on curing behavior of UV-curable hybrid coatings : A photo-DSC study

Influence of temperature and UV intensity on photo-polymerization reaction studied by photo-DSC

UV curing behavior and mechanical properties of unpigmented and pigmented epoxy acrylate/SiO$_{2}$ nanocomposites

Effect of a hyperbranched polymer over the thermal curing and the photocuring of an epoxy resin

Photocuring and thermal post-curing of a cycloaliphatic epoxide resin with a trithiol and a vinyl epoxy compound

Photopolymerization kinetic studies of UV-curable sulfur-containing difunctional acrylate monomers using photo-DSC

DSC and curing kinetics of epoxy resin using cyclohexanediol diglycidyl ether as active diluents

Cure kinetics of epoxy composite applied on stator bars insulation

Kinetic study of chitosane/genipin system using DSC

Influence of temperature and light intensity on the photocuring process and kinetics parameters of a pigmented UV curable system

Similar Documents

Effects of silane precursors on curing behavior of UV-curable hybrid coatings : A photo-DSC study

Influence of temperature and UV intensity on photo-polymerization reaction studied by photo-DSC

UV curing behavior and mechanical properties of unpigmented and pigmented epoxy acrylate/SiO$_{2}$ nanocomposites

Effect of a hyperbranched polymer over the thermal curing and the photocuring of an epoxy resin

Photocuring and thermal post-curing of a cycloaliphatic epoxide resin with a trithiol and a vinyl epoxy compound

Photopolymerization kinetic studies of UV-curable sulfur-containing difunctional acrylate monomers using photo-DSC

DSC and curing kinetics of epoxy resin using cyclohexanediol diglycidyl ether as active diluents

Cure kinetics of epoxy composite applied on stator bars insulation

Kinetic study of chitosane/genipin system using DSC

Influence of temperature and light intensity on the photocuring process and kinetics parameters of a pigmented UV curable system