Plasticizer - an overview | ScienceDirect Topics
Introduction of plasticizers into the biopolymer reduces the melt viscosity of the polymer and lowers the temperature, pressure, and shear rate required to melt-form the polymer. Plasticizers also prevent heat build-up and consequent discoloration and molecular weight decrease during processing steps, such as production and packaging.
Plasticizer - an overview | ScienceDirect Topics
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.
Selection of Plasticizers for Coating Formulations
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.
Formulations for Polymer Coatings - ResearchGate
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Selecting Plasticizers for Adhesives and Sealants
Plasticizers will reduce the melt viscosity of hot-melt adhesives and 100% solids adhesives & sealants. However, the addition of certain plasticizers to a polymeric emulsion will usually result in increased viscosity. This effect can be used to formulate a waterborne adhesive having greater coating thickness build-up.
- 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.
- What is a plasticizer in chemistry?
- 498 PIEZOELECTRIC POLYMERS Vol. 3 PLASTICIZERS Introduction A plasticizer is a liquid that is added to a material (usually a resin or elastomer) making that material softer, more flexible (by decreasing the glass-transition temperature T g of the polymer), and easier to process.
- Why is plasticizer important in an OS formulation?
- Plasticizer is a vital ingredient of the OS formulation. It helps to improve the flexibility of the strip and reduces the brittleness of the strip. Plasticizer significantly improves the strip properties by reducing the glass transition temperature of the polymer.
- 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.
- 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.
- What does a plasticizer do to a polymer?
- A plasticizer softens a polymer with added flexibility and lowers the glass transition temperature (Tg). While softening polymers, plasticizers also tend to reduce the green strength of the ceramic body.
