Several preliminary identification methods for vae redispersible powder

VAE Re permeable Polymer Powder as a powder adhesive, is widely used in the construction industry. The quality of dispersible latex powder is directly related to the quality and progress of construction. With the rapid development of the domestic building energy-saving market With the development of VAE Re-dispersible Polymer Powder, more and more companies are involved in the research and development and production of VAE Re-dispersible Polymer Powder products, and users have more and more choices. However, at the same time, the quality of VAE Re-dispersible Polymer Powder has become mixed. In order to reduce costs, some manufacturers ignore quality standards and pass off inferior products as high-quality products. Some even use ordinary resin powder to sell it at low prices under the guise of VAE Re-dispersible Polymer Powder. This not only disrupts the market but also deceives the market. consumer.

How to identify the quality of VAE Re permeable Polymer Powder? Here are some preliminary methods to identify the quality of re-dispersible latex powder:

Judging from the appearance: Use a glass rod to cover a small amount of redispersible latex powder thinly and evenly on the surface of a clean glass plate. Place the glass plate on white paper and visually inspect the particles, foreign matter and coagulation. Exterior. The appearance of the redispersible latex powder should be white free-flowing uniform powder with no irritating smell. Symptoms of quality problems: latex powder has abnormal color; contains impurities; rough particles; pungent odor;

Judgment by dissolution method: Dissolve a certain amount of VAE Re-dispersible Polymer Powder in 5 times the mass of water, stir thoroughly and let it stand for 5 minutes before observing. In principle, the less insoluble matter that settles to the bottom layer, the better the quality of the dispersible latex powder;

Judging from the ash content: Take a certain amount of VAE Re permeable Polymer Powder weigh it, place it in a metal container, heat it to 800°C, burn it for 30 minutes, cool it to normal temperature, and weigh it again. The quality is relatively good for the light weight. Light weight and good quality. Analysis of the reasons for high ash content: improper raw materials and high inorganic content;

Use film-forming method to judge: Film-forming property is the basis for mortar modification properties such as bonding. Poor film-forming property is usually caused by excessive addition of inorganic components or improper organic components. Good-quality VAE Re-dispersible Polymer Powder has good film-forming properties at room temperature. Those with poor film-forming properties at room temperature mostly have quality problems with the polymer or ash content.