Recent trends and applications in the research and development activities of redispersible powder: a vision of twenty-first century

pH-Responsive Carboxylated Latexes: Switching between Stabilization and Destabilization

“…Therefore, converting the polymer dispersion into a dry form capable of being re-established as a polymer dispersion upon mixing with water can be a solution. A prominent example of a family of applications in which this concept successfully evolved are polymeric additives used in mortar applications to improve the overall performance of concrete and mortar. − …”

“…Polymers control the rheology of the mortar paste, which can be varied from self-leveling (needed for flooring) to no-sagging (for tiling). Polymers are also used to fine-tune the hydration kinetics of the inorganic binder system with a significant impact on the workability and open time of the mortar. − These additives also improve the adhesion to different substrates, as well as the resistance to abrasion, impact, and cracking. , To achieve this performance, often soft polymers with glass transition temperatures ( T g ) below ambient temperature are used . The delivery form of the polymers in such applications has evolved from aqueous dispersions to polymer powders, enabling the production of dry-mix mortars.…”

Redispersible Polymer Powders with High Bio‐Based Content from Core–Shell Nanoparticles

“…[9] This difference in the T g can be advantageously exploited, for example, to produce the so-called redispersible polymer powders (RDPPs), hydrophobic polymer NPs sold in the form of a dry powder that can be easily resuspended in aqueous media to re-obtain the original properties. [12] The advantages of these powders are the easiness of transportation, that can be achieved at lower costs due to the compression of the volumes compared to the original latexes, and of mixing with other materials in addition to the possibility of resuspending the product at the required concentration. To obtain these RDPPs, a hard shell is required to avoid agglomeration and sticking during the drying process, typically occurring at high temperature.…”