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Read the articleAUTHOR
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Jean-Claude LAOUT: Doctorate in Chemistry (3rd cycle) - Former head of the "Paints" department at Wolff Laboratories (Lyon)
INTRODUCTION
The aim of this article is by no means to provide standard manufacturing formulations, but rather to show how it is possible to approach the design of paint formulations based on the mastery of physical quantities and knowledge of raw materials. Paints must meet the needs of end-users and be suitable for protecting and/or decorating surfaces. This is why, depending on their intended use, paints will be formulated differently. Their specificity will essentially depend on their field of use: decorative "building" and "consumer" paints, anti-corrosion paints, industrial paints, marine paints. Physical chemistry is involved at every stage of a paint's life: manufacture, application, conservation, adhesion to the substrate, drying, appearance and degradation. Thus, pigment concentration by volume is considered the fundamental parameter in paint formulation optimization. In addition, it is important to understand the limits of simple viscosity measurements, and to study the rheological behavior of ready-to-use products in order to avoid defects such as drips. Hildebrand's work, based on enthalpy of mixing, complemented by Hansen's, enables us to predict the behavior of solvent/polymer combinations using solubility parameters. Similarly, the notion of wettability, proposed as early as 1805 by Young, is also applied to paint spreading.
All this information will show that the development of a paint formulation is more a question of fundamental knowledge of physical chemistry than of "cooking recipes". The second part will deal more specifically with the polymers used in the formulation (alkyd resins, epoxies, etc.), as well as their properties and applications.
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Paint formulation
Definition of a paint
Bibliography
References
Leading paint magazines
Double bond paint chemistry
AFTPV (biennial), FATIPEC (biennial) conference books
Oil and Colour Chemist' Association Journal
Polymers Paint and Colour Journal
Journal of Coating Technology
Galvano-organo surface treatments
Surface
Progress...
Professional organizations
(non-exhaustive list)
FIPECFédération des industries des peintures, encres, couleurs, colles et adhésifs http://www.fipec.org
CEPECommunauté européenne des peintures et encres http://www.cepe.org
AFTPVAAssociation...
Training organizations
(non-exhaustive list)
ITECH http://www.itech.fr
Lycée de l'Escaut http://www4.ac.lille.fr/escautv
...Congress
Even-numbered years:
FATIPEC 2006 (June 12-14, 2006) Budapest (Hungary)
Odd-numbered years :
EUROCOAT 2005 (September 27, 28, 29, 2005) Lyon (France)
Standardization
French and European standards
- Paints, varnishes and similar products – Determination of flash point – Rapid equilibrium method. Classification index: T30-051 - NF EN 456 - Nov. 1991
- Paints and varnishes – Terms and definitions for paint products – Part 1: General terms. Classification number: T36-001-1 - NF EN 971-1...
Examples of paint characteristics
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Determination of the glass transition temperature of a Pliolite ®-based exterior paint by Fox's law (see § 2.3.1) in
The information required to determine the glass transition temperature is shown in Tables 1 and
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