How to judge the quality of water-based acrylic emulsion

Acrylic emulsion is formed by polymerization of ethylene monomers with acrylic monodels. During the agglomeration, various additives such as emulsifier, stabilizer, and pH regulator were added. The system was quite complicated.

Adopt different monomers of hard and hard, adjust the dosage, and change the feeding method to control the distribution of soft and hard chain segments of polymer molecules in the emulsion particles, so as to obtain lotion (TG or different low -formation temperature (MFFT) emulsion. The emulsifier used during polymerization can be an ion type, or a non -ionic or cationic type. The corresponding emulsion and the painted paint can also be called an ionic type, non -ionic or codonic type.

The pure propylecal emulsion is obtained with acrylic monosterial polymerization. During the agglomeration, other vinyl monomers can be added to the emulsion to the emulsion. For example, add the inguraryne to improve the hardness of the paint film and reduce the cost; introduce fluoride and silicon -containing monomers to improve the surface performance of the paint film, reduce the surface freedom of the membrane, Can improve hydrophobicity and dirtyness. This produces varieties such as benzopyrite paint, fluoride carbohydrate paint, and silicone water paint.

The paint film made of acrylic is good to weigh, not easy to change, high hardness, and good gloss. However, its main disadvantage is that the anti -adhesiveness is poor, and it is prone to the phenomenon of hot stickiness and crispy. If the hardness is too high, the low temperature is not good, and it is difficult to paint in winter.

By further improved and improved the nature of acrylic emulsion by self -integrated aggregation, soap -free aggregation, nuclear shell aggregation, etc., especially the use of nuclear shell technology to make lotion particles into a hardcore soft shell or soft core hard shell structure, or even even Multi -layer structures of hard and hard asking to meet the needs of different construction and use conditions.