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Adding hydroxypropyl methylcellulose to cement can slow down the hydration of cement. So what do you know about its principle? Let’s take a look at hydroxypropyl methyl cellulose to delay the hydration of cement. principle.

The redispersible latex powder is usually white powder, and the redispersible latex powder is usually white powder. But there are a few other colors. Ingredients include: polymer resin: located in the core part of the rubber powder particles, and is also an important component of the redispersible latex powder to play a role.

Hydroxypropyl content and viscosity, most users care about these two indicators. The higher the hydroxypropyl content, the better the water retention. Viscosity is higher, water retention is relatively (rather than absolute) is better, and viscosity is higher, it is better used in cement mortar.

The viscosity of hydroxypropyl methylcellulose HPMC, which we usually say, refers to the result of its 2% aqueous solution at a temperature of 20 degrees Celsius. The viscosity of hydroxypropyl methyl cellulose is mainly divided into four categories: low viscosity, medium and low viscosity, medium viscosity and high viscosity. Different viscosities have different uses.

The shallow admixture, which plays a key role in improving the performance of building dry-mix mortar, accounts for more than 40% of the material cost in dry-mix mortar. Most additives in the domestic market are supplied by foreign manufacturers, and the reference dosage of products is also provided by the suppliers.

Hydroxypropyl methyl cellulose (HPMC)
Application introduction:
1. Construction industry: As a water retention agent and retarder for cement sand slurry, the slurry is pumpable. Used as a binder in plastering plaster, gypsum material, putty powder or other building materials to improve the spreadability and extend the operating time. Used for pasting ceramic tiles, marble, plastic decoration

Redispersible latex powder is a water-soluble redispersible powder, a copolymer of ethylene and vinyl acetate, with polyvinyl alcohol as a protective colloid. Because the redispersible latex powder has high binding properties and other unique properties, such as water resistance, workability and thermal insulation, etc., its application range is extremely wide.

The characteristics and benefits of hydroxypropyl methylcellulose used in building materials are many. Sleochem gives you a detailed introduction:
Characteristics of hydroxypropyl methyl cellulose

The re-dispersible latex powder mainly plays the role of toughness and strength in construction projects. Generally, the effect of adding a certain amount of strength will be good, but the following problems should be noted during the use of the product: