Titre : |
Enhancing curing of UV black coating through formulation efficiency |
Type de document : |
texte imprimé |
Auteurs : |
Pradeep S. Verma, Auteur ; Yogesh B. More, Auteur |
Année de publication : |
2020 |
Article en page(s) : |
p. 64-68 |
Langues : |
Anglais (eng) |
Catégories : |
Formulation (Génie chimique) Inhibiteurs (chimie) Noir de carbone Oligomères Oxygène Photoamorceurs (chimie) Revêtements -- Séchage sous rayonnement ultraviolet
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Formulating UV curable coating is an art for the formulator for decades and if the coating is pigmented, it becomes more complicated. Developing this UV curable pigmented system is a real challenge and developing it in a black color makes it more challenging.ihe correlation between black color and UV radiation is a complex phenomenon. Black is color which absorbs all the wavelengths and transmits none. Along with visible light, it also absorbs Ultraviolet light and hence, black pigment itself is major governing factor for curing of black coatings which cures by UV source. Development of novel photo initiator and advancement in Carbon black pigments has simplified this difficult task by providing further scope to the formulator for designing UV curable black coating. This paper is a scientific overview of the work done in the area of UV curable black coating development considering role of various oligomers, monomers and their functionalities, choice of photo-initiators based on their absorption spectra and introduction of suitable black pigment in optimized ratio. |
Note de contenu : |
- Formulating concerns
- Formulating principle : Oligomers
- Pigments
- Photoinitiators
- Fig. 1 : The highlighted bond in each species undergoes homolytic cleavage after the absorption of UV light. HAP's absorb shorter wavelength UV-A radiation (300-350nm) while TPO's commonly absorb radiation in the 360-400nm range, nearly into visible light
- Fig. 2 : Benzophenone and benzophenone-type photo initiators are the most common Type II photo initiators. Type II initiators absorb in the UV-C region |
En ligne : |
https://drive.google.com/file/d/1T6SZ6ZR88sRu2xhhbjd77d4ihc_mByex/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34687 |
in PAINTINDIA > Vol. LXX, N° 2 (02/2020) . - p. 64-68