The Classification Of Commonly Used Water-Based Paint Additives

The internal structure of the aqueous   acrylic emulsion   particles will have an impact on several aspects of the water-based paint formulation. the phase structure will first affect the choice and addition of film forming auxiliaries.Different phases have different hydrophilic / lipophilic characteristics,the lipophilicity of film forming additives is also different.For example, two propylene glycol methyl ether (DPM) is higher hydrophilicity, lower lipophilicity than two propylene glycol butyl ether (DPnB).If the outer layer of the aqueous acrylic emulsion particles is a highly lipophilic phase, the addition of DPM not only affects the film formation, but also allows the excess DPM in water to affect the other properties of the water-based paint film. The other effect of phase structure on the formulation of aqueous coatings is the effect on the film quality of water-based paint film.The key to the quality of the film is in the mixing process of the aqueous acrylic emulsi...

In the formulation of water-based coatings, the selection of raw materials is the most important decision.The main performance of the coating is determined by resin. Water-based acrylate emulsion ,including polystyrene acrylate emulsion,a great variety and market jumbly. Different water-based acrylic resin composition have a great impact on the film-forming and cost of water-based coatings. 1. Principal raw material A. Styrene:The primary reason for the introduction of the monomer into the polyacrylate emulsion is that it provides a high glass transition temperature (Tg),So as to improve the hardness of the film;The other reason is cost.The amount of Styrene in the packaging industry is large,is one of the most important downstream products in the oil industry,low price but vulnerable to macroeconomic.However,the introduction of styrene, in particular, its content is higher than the total monomer volume of more than 15%,will bring a lot of negative effects to water-based paint f...