What are the functions of redispersible latex powder in various cement mortars?

Latex powderAs a kind of powder equipment adhesive, it is widely used in the construction industry latex powder The quality is directly related to the quality and progress of the construction. With the rapid development of China’s energy-saving building market, more and more manufacturing companies have entered into the research and development of latex powder products.

How to identify the quality of latex powder? Below I will share with you several basic ways to identify the quality of latex powder:

1. Judging from the appearance: use a glass rod to divide a small amount of latex The powder is thinly and evenly covered on the clean glass surface, and the glass is placed on the tissue paper to visually detect the appearance of particles, local people and condensation.

The appearance of latex powder should be milky white, free flowing and uniform powder with no irritating smell. What are the main symptoms of quality problems: The color of the natural latex powder is abnormal; contains residue; the particles are not smooth; there is a pungent smell;

2. Identification by melting method: take a certain amount of latex powder and melt it in In 5 times the quality of water, mix thoroughly and let it sit for five minutes before observing. Under normal circumstances, the lower the amount of impurities that sink to the bottom, the better the quality of the latex powder;

3. Distinguish from the ash content: take a certain amount of latex powder, After weighing, place it in a stainless steel container, raise the temperature to 800°C, burn for 30 minutes, cool to normal temperature, and weigh again. The lighter weight is relatively good. Light weight and good value for money. The main reason for the high ash content is that it contains poor raw materials and high inorganic compounds;

4. Use the demulsification method to identify: demulsification is the key to adhesion The poor demulsification ability of cement mortar to improve the foundation of male sexual function is usually caused by excessive addition of non-generating components or improper chemical ingredients.

The cost-effective latex powder has good demulsification properties at room temperature. , those with poor demulsification at room temperature mostly have quality problems at the polymer or ash level.

Test standard: Take a certain quality of latex powder, add water at a ratio of 1:1, mix well and let it sit for 2 minutes, stir well again, pour the solution onto a piece of clean glass, and place the glass in a ventilated shade place .

After enough drying, Tear off. Observe the torn off polymer film. High definition and good value for money. Then carry out appropriate involvement, good flexibility and high cost performance. Then cut the film into strips, soak it in water, and observe it after 1 day. The film that is less dissolved by water is more cost-effective.