Method for identifying the quality of redispersible latex powder mortar
The polymer film formed by redispersible latex powder mortar has good flexibility. Films are formed in the gaps and surfaces of cement mortar particles to form flexible connections. Thus making the brittle cement mortar elastic. Redispersible latex powder mortar is several times higher in tensile and bending resistance than ordinary mortar.
Redispersible latex powder belongs to thermoplastic resin and has good flexibility. Redispersible latex powder mortar can cope with changes in external cold and hot environments, effectively preventing the mortar from cracking due to temperature changes.
Redispersible latex powder mortar is mainly used in the construction industry. Redispersible latex powder is an important additive for cement dry powder mortar. The method to identify the quality of redispersible latex powder mortar:
1. Mix the redispersible latex powder and water at a ratio of 5, stir evenly and let it stand for 5 minutes, then observe the sediment at the bottom. Generally, the less sediment, the better the quality of the redispersible latex powder.
2. Mix the redispersible latex powder and water at a ratio of 2, stir evenly and let it stand for 2 minutes, then stir evenly, pour the solution on a flat clean glass, place the glass in a ventilated and shaded place, and fully dry Finally, peel off the coating on the glass and observe the polymer film. The more transparent it is, the better the quality of the latex powder is. Then pull the film moderately. The better the elasticity, the better the quality. Cut the film into strips Soak in water, observe after 1 day, the quality of the less dissolved is better.
3. Take an appropriate amount of latex powder and weigh it. After weighing, put it in a metal container, heat it up to about 500 degrees, and weigh it after cooling. The lighter the weight, the better the quality.
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