Plasticizers in Paint & Coatings: Uses, Types and Selection
Plasticizers are additives that increase the elasticity of coatings based on film-forming materials. In order to meet specific demands for your application, proper film-formation is essential. But, selecting the right plasticizer with a unique property of your choice is sometimes challenging.
An overview on dry powder coating in advancement to
Coating a pharmaceutical drug gives physical and chemical protection, as it is formed as a layer on the drug, which also modifies the drug characteristics and drug-releasing kinetics. Generally, the coating polymer disperses either in the aqueous or organic-based solution.
Plasticizer - an overview | ScienceDirect Topics
Loss of plasticizers during coating process and storage have been reported [84, 104]. To overcome this issue, ibuprofen was used as a nontraditional plasticizer (and in solid state) for Eudragit RS 30 D coatings [19]. The coated pellets were cured at 40°C for 24 h and stored at 23°C/0% RH. Drug release profiles were unchanged for 12 months.
The Review of Powder Coatings - ResearchGate
Powder Coatings. August 2017. Frank N. Jones. Mark E. Nichols. Socrates Peter Pappas. Powder coatings are formulated from solid resins and usually cross-linkers and pigments, but no solvents
COATING METHODS, POWDER TECHNOLOGY - University of Babylon
methods. Powder coating methods are considered to be fusion-coating processes; that is, at some time in the coating process the powder particles must be fused or melted. Although this is usually carried out in a convection oven, infrared, resis-tance, and induction heating methods also have been used. Therefore, with minor
- What are plasticizers used for?
- Plasticizers are additives that increase the plasticity or fluidity of a material. Coating formulations based on physically drying binders such as nitrocellulose, require external plasticizers for optimal film formation. They are used to control the film formation process of coatings based on physically drying film-forming materials.
- Why are plasticizers used in film & coatings?
- As a modified final product, plasticizers increase the temperature range of usage; increase flexibility, elongation, and toughness; and lower the glass transition temperature (Sears and Darby, 1982). For films or coatings, there are different definitions of plasticizers depending on the purpose of the polymer–plasticizer system.
- Do plasticizers affect polymeric coating properties?
- Various studies have been reported in the literature, investigating the effect of plasticizers on the properties of the final polymeric coating. Laboulfie et al. studied the effect of plasticizer on the mechanical resistance and thermal behavior of composite coating films.
- Can plasticizers be used in coating formulations?
- For natural products or hard polymers of poor processing, the option is the external use of plasticizers in the coating formulations. Plasticizers interact physically with the polymer binder molecule, without a chemical reaction and form a homogeneous system.
- How do you choose a plasticizer for a polymer?
- Proper selection of a plasticizer for a given polymer will allow optimization of the film mechanical properties with a minimum increase in film permeability. Common plasticizers for edible films and coatings, include monosaccharides, oligosaccharides, polyols, lipids, and derivatives.
- What are the different types of plasticizers for edible films & coatings?
- Common plasticizers for edible films and coatings are monosaccharides, oligosaccharides, polyols, lipids, and derivatives (Guilbert, 1986; Baldwin et al., 1997). Water is also an important plasticizer for edible films and coatings. Water content is dependent on the polymer and external plasticizer selected.
