- Recent advances in coalescing solvents for waterborne
coatings.
Until recent times, most paints were solvent-based. Since many polymers were produced in solution, it was natural that the coatings system derived from these polymers would use the solvent of reaction as the diluent for the polymer. These were almost invariably organic species. The use of organic solvents in paint ......
- A new breed of acrylic dispersions: a new breed of
dispersions for industrial furniture coatings with polymer bound
stabilizers.
Acrylic dispersions consisting of particles with a controlled morphology and a self-crosslinking mechanism are the current state-of-the art binders for VOC-compliant industrial coatings for wood, metal and plastics. The process of emulsion polymerisation is used in producing these acrylic dispersions. In the emulsion polymerisation process monomer is polymerised in an ......
- Stacking up the challenges: solutions to wet and
sticky problems: one of the biggest challenges formulators face is to
provide coating solutions in wet and dirty environments. Coatings can be
made to...
In global terms, around two million tonnes of polymer are produced annually via emulsion polymerisation or other heterogeneous polymerisation processes. The end product of emulsion polymerisation is a dispersion of particles in water, otherwise known as a latex. Surfactants play a crucial role in all aspects of the production and ......
- Waterborne polymers for water repellent wood
coatings.
Waterborne polymer emulsions composed of vinyl acetate-ethylene (VAE), ethylene-vinyl chloride (EVCl), and other vinyl acetate copolymers were evaluated as polymer systems in water repellent coatings for exterior wood applications. Data presented indicates that these polymer emulsions exhibit an excellent balance of performance properties, making them the polymer of choice in ......
- Acrylic resin synthesis for marine anti-fouling
paints: in the drive to find a replacement for TBT in marine coatings,
researchers in the Middle East have developed a new grafted resin system
that shows...
Until recently, antifouling paints contained either copper or organometallic compounds such as tributyltin oxide (TBT) [1]. TBT-based antifoulings have been banned after demonstrating toxic effects on non-target marine invertebrates, and in particular on the embryo genesis [2-4]. The search for non-toxic alternatives to TBT is therefore a major focus for ......
- Functional latex and thermoset latex
films.
We review advances in the design and development of functional latex particles that can be used to form crosslinked coatings. Our emphasis is on understanding fundamental principles, of the formation and aging of latex films, of crosslinking of polymer films, of the reaction mechanisms that lead to bond formation, and ......
- Redefining the design of pigment
dispersants.
Dispersion additives need to have a good affinity to the pigments to ensure high quality coatings. The development of more controlled polymerisation processes allows better control of the polymer architecture, which in turn improves the additive performance. The result: better pigment dispersions and fewer problems for paint manufacturers. Polymeric pigment ......