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There are many adhesives in our lives. With the rapid development of social science and technology, the performance of adhesives used today is getting greater and greater. Now there is a product on the market that is very easy to use. It is not only It can be used as an adhesive, and there are other uses. This is redispersible latex powder.

Hydroxypropyl methyl cellulose has good viscosity to wet mortar, can significantly improve the bonding performance between the wet mortar and the base layer, and improve the anti-sagging performance of the mortar. It is widely used in mortar, external wall insulation and surface bonding mortar.

The viscosity of aqueous solution of hydroxypropyl methyl cellulose is mainly affected by the degree of product polymerization, concentration of product in aqueous solution, shear rate and solution temperature. The viscosity of aqueous solution increases with the increase of product polymerization degree and concentration, and decreases with the increase of shear rate and solution temperature.Salt and safe insecticides can also be added to obtain better viscosity characteristics and application performance. Users should consider the actual situation and economy to choose hydroxypropyl methyl cellulose viscosity specifications and addition.

HPMC is a type of non-ionic cellulose ether, white powder appearance, odorless and tasteless, soluble in water and most polar organic solvents. Its water solution has a surface activity, high transparency, stable performance.

In recent years, with the continuous development of external wall insulation technology, the continuous progress of hydroxypropyl methyl cellulose production technology, and the excellent characteristics of hydroxypropyl methyl cellulose HPMC itself, hydroxypropyl methyl cellulose HPMC has been widely used in the construction industry. In order to deeply explore the mechanism of hydroxypropyl methylcellulose HPMC and cement-based materials, this paper focuses on the improvement effect of HPMC on the cohesive properties of cement-based materials.

In dry-mixed ready-mixed mortar, the addition amount of hydroxypropyl methylcellulose hpmc is very low, but it can improve the performance of wet mortar and is a major additive that affects the construction performance of mortar.

Hydroxypropyl methylcellulose (HPMC) is a kind of odorless, tasteless, non-toxic white powder. After fully dissolved in water, HPMC will form a transparent viscous colloid.The main raw materials of hydroxypropyl methylcellulose (HPMC) are refined cotton, methyl chloride, propylene oxide, and other raw materials and chemicals, such as caustic soda, acid, toluene, isopropanol.

Cement mortar: improve the dispersibility of cement and sand, greatly improve the plasticity and water retention of mortar, and improve the strength of cement.
HPMC used in Tile adhesive: to improve the plasticity, water retention and glue relay of ceramic tile mortar, to prevent powder.
Coating of fireproof materials such as asbestos: as suspension agent, fluidity improver, and improved adhesive relay on basement.
Gypsum plaster: improve the water retention and processing, and improve the adhesion of the base.

In the application of building materials, hydroxypropyl methylcellulose has its unique properties from mixing to dispersion to construction, as follows:
Firstly, compounding and configuration