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The five indexes are hydroxypropyl content, methoxy content, viscosity, moisture and ash content. The ratio of hydroxypropyl content to methoxy content should be appropriate, the water retention will be good, not just which index is high. Viscosity: When the viscosity is less than 100,000,

building grade HPMC can significantly reduce the water absorbed by the wall and has good water retention. On the one hand, it can ensure that the cement has a longer compounding time. On the other hand, it can ensure that workers can scrape the putty on the wall multiple times. To ensure the quality of building.

Hydroxypropyl methylcellulose HPMC is often used in many industries. Although many people do not understand it very well, it does affect various industries. In the construction process of the construction industry, it is usually mainly used for wall masonry and plastering. Caulking and other mechanical construction fields,

1. Viscosity is a parameter that reflects whether the mortar is good or not. The normal viscosity of the mortar is smooth in construction and the wall is not easy to fall off.

As the most important part of building materials commercialization, SLEO HPMC plays a vital role in masonry and plastering mortar. A good mortar should have good workability, smooth application without sticking, sufficient operating time, and easy leveling;

In the ready-mixed mechanical spraying mortar, the addition of hydroxypropyl methyl cellulose ether is very low, but can significantly improve the performance of wet mortar, mortar construction performance is a major additive. Reasonable selection of cellulose ether with different varieties, different viscosity, different particle size, different viscosity degree and addition amount has a positive effect on the improvement of dry mortar properties.

Hydroxyethyl methyl cellulose HEMC can be used as a colloidal protective agent, emulsifier and dispersant due to its surface activity in aqueous solution. Examples of its applications are as follows:

As we all know, tile adhesive is generally made from cement and mixed with various additives. It is mixed with water at the construction site and then applied to the wall or floor. It generally has a certain initial strength about 12 hours after construction. The strength increases with time and is generally basically stable after 28 days.

After the putty has dried and been de-powdered, the root cause can be attributed to the fact that the bonding system did not work. Why the bonding system, whether it is an inorganic binder or an organic binder, can be considered from the following aspects.