Biosurfactants as eco-friendly dispersants
Locus Ingredients’ range of Amphi® biosurfactants is produced through natural fermentation rather than traditional chemical synthesis. The ingredients used in the fermentation process are reliably sourced as natural sugars and oils. In addition, the entire line is classified as readily biodegradable, which means at least 60% biodegradation within the first eight days after release into the environment.
Amphi Biosurfactant is non-toxic and does not contain 1,4-dioxane, ethylene oxide, formaldehyde or other chemicals of concern under Proposition 65. The line is FDA-approved for biobased product labeling, which contains 100% biobased, renewable ingredients, in contrast to many other so-called “biobased” ingredients, which are actually only partially biobased.
Formulation Checklist: How to Choose the Right Dispersant
Selecting the right dispersant for a particular formulation requires consideration of a variety of factors to ensure performance and stability. Here are some key questions to ask when selecting a dispersant:
Nature of the particles – what are the characteristics of the particles to be dispersed? Consider factors such as particle size, surface charge and composition.
Liquid medium – what are the properties of the liquid medium (solvent or water)? Consider the compatibility of the dispersant with the medium and the intended application.
Chemical Compatibility – Is the dispersant chemically compatible with other ingredients in the formulation? Ensure that the dispersant will not react adversely with other ingredients.
pH Requirements-What is the pH of the formulation? Some dispersants may be more effective in a specific pH range. Consider adjusting the pH if needed.
Temperature sensitivity-What are the temperature conditions during processing and application? Ensure that the dispersant remains effective over the expected temperature range.
Application type-What is the intended application of the formulation (e.g., paints, inks, coatings, pharmaceuticals)? Different applications may require dispersants with specific properties.
Stability requirements – How stable does the dispersion need to be over time? Consider shelf life and storage conditions to select a dispersant with adequate stability.
Toxicity and environmental impact-What are the toxicity and environmental considerations? Select dispersants that meet regulatory standards and environmental sustainability goals.
Surfactant type-Does the formulation benefit more from anionic, cationic, nonionic or amphoteric surfactants? Consider system specific requirements.
Polymeric Dispersants – Is the use of polymeric dispersants more appropriate for the formulation? Evaluate whether the addition of long chain polymers with specific functional groups will enhance stability.
Cost Considerations – What is the budget for the formulation? Consider the cost effectiveness of different dispersant options while ensuring they meet performance requirements.
Regulatory Compliance – Does the dispersant meet relevant regulatory standards and certifications? Ensure that the dispersant selected meets industry regulations and safety standards.
Particle size distribution – What particle size distribution is required for the product? Select a dispersant that effectively controls and optimizes particle size.
Interaction with other additives – How will the dispersant interact with other additives in the formulation? Consider potential synergies or conflicts with other components.
Application method – How will the formulation be applied (e.g., sprayed, brushed, printed)? Consider the method of application to ensure compatibility with the dispersant.
By addressing these issues, the formulator can make informed decisions and select a dispersant that meets the specific requirements and objectives of the formulation.
