Introduction of Plasticizers in Coating Formulations

  • Introduction of Plasticizers in Coating Formulations
  • Introduction of Plasticizers in Coating Formulations
  • Introduction of Plasticizers in Coating Formulations
  • What is inner plasticization?
  • This chemical modification process is known as " inner plasticization ". 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.
  • 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.
  • What is a plasticizer in chemistry?
  • The Council of the International Union of Pure and Applied Chemistry (IUPAC) adopted the following definition of a plasticizer: “A plasticizer is a substance or material incorporated in a material (usually a plastic or elastomer) to increase its flexibility, workability, or distensibility.”
  • Which plasticizers are used in coatings?
  • Commonly used plasticizers in coatings are: DINCH (dicarboxylate) and more. Plasticizers may be solvents or non-solvents to the binder. For example, NC is soluble in plasticizers such as di-butyl phthalate (DBP), di-iso-octyl phthalate (DIOP), di-octyl phthalate (DOP) & tricresyl phosphate.
  • Which plasticizers are used in ceramic formulations?
  • Common plasticizers used in ceramic formulations include phthalates, such as dibutyl phthalate (DBP), and poly (ethylene glycol) (PEG), which have molecular weights in the range 100–1000 gmol −1. Factors that affect compatibility include the polarity, size, and shape of the plasticizing molecules.
  • Should water-insoluble plasticizer be added to aqueous polymer dispersion before dilution?
  • During solid dosage forms coating preparation, for optimal mixing between the plasticizer and the polymeric dispersion, Bodmeier and Paeratakul recommended the introduction of water-insoluble plasticizer to the aqueous polymer dispersion before dilution of the latter.

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