There are key characteristics that differentiate legacy, petrochemical surfactants from bio-based surfactants, as well as chemically manufactured bio-surfactants from their biologically created counterparts, bio-surfactants.
For those looking to replace PFAS in their coatings formulations, this article discusses some experiments and data that show how organosilicones compare to PFAS compounds in critical performance criteria such as low surface tension/surface energy, COF, water repellency, oil repellency, stain resistance, and chemical stability.
This month’s Formulating with Mike columncontinues the focus on resins, and discusses acrylic emulsion polymerization, in particular, surfactant design and how it affects the polymerization of a vinyl-acrylic emulsion.
Waterborne latexes are produced via emulsion polymerization, in which surfactants or emulsifiers are the key components to control latex properties. Much effort has been made to reduce the impact of surfactants on the performance of waterborne formulations. One of the promising approaches is to use polymerizable or reactive surfactants to prepare latex polymers.
As the coatings industry continues to prioritize waterborne systems, further research to provide coatings with comparable properties to those based on solvent-based systems is required. This paper, winner of the PCI Award for Technical Excellence at the 2023 Waterborne Symposium, presents a surfactant-free encapsulation process that enables the enclosure of polysiloxanes of arbitrary molecular weight in capsules of nanometer size in a simple, scalable process.
This month’s Formulating with Mike columncontinues the focus on resins and discusses acrylic emulsion polymerization, in particular, surfactant design and how it affects the polymerization of a vinyl-acrylic emulsion.
Microfibrillated cellulose (MFC), a bio-based and multi-functional product made of cellulose, is a new alternative to traditional thickeners. Learn how MFC increases the tensile strength of elastomeric acrylic roof coatings without sacrificing the elongation, and how it reduces the water absorption, as well as increases the adhesion of coatings.