Hydroxypropyl methyl cellulose (HPMC) is a kind of non-cationic cellulose ether, which is prepared from natural polymer methyl cellulose through a series of organic chemical processes. Hydroxypropyl carboxymethyl cellulose (HPMC) is an odorless and odorless white powder, which can dissolve cold water and produce a fully transparent and thick aqueous solution. It has the characteristics of thickening, adhesion, dispersion, emulsion, demulsification, flotation, adsorption, gelation, surface activity, moisturizing and hydrating and colloidal solution maintenance.

Application in building decoration materials;

1. Masonry mortar plastering mortar
High water retention makes concrete fully solidified. Obviously improve that bonding compressive strength. In addition, the tensile strength and shear strength can be moderately improved. Further improve the actual effect and work efficiency of engineering construction.


2. Water-resistant putty

The key functions of cellulose ether in putty powder are water locking, adhesion and moistening, which can prevent cracks or clearance caused by excessive water shortage. In addition, it can improve the adhesion of putty powder, reduce the sagging phenomenon in the construction site, and make the project construction successful and save energy.

3. Interfacial agent

The key as tackifier can improve tensile strength and shear strength, improve surface coating, improve adhesion and fusion compressive strength.

4. Exterior thermal insulation mortar

Cellulose ether plays a key role in bonding and improving compressive strength in this kind of raw materials, making cement mortar easier to coat and improving working efficiency. In addition, it has the ability of anti-hanging, and its high water-locking characteristics increase the working time of cement mortar, improve the folding and anti-cracking fiber properties, improve the process performance and enhance the bonding compressive strength.

5. Ceramic tile adhesive.

High water retention, no need to soak or wet floor tiles and plates in advance, and obviously improve the bonding compressive strength. The mortar project has long construction time, meticulous symmetry, convenient construction and good anti-sliding characteristics.

6. Filling agent, ditch filling agent

The addition of cellulose ether makes it have excellent edge adhesion, low shrinkage and high wear resistance, which can protect the plate from mechanical equipment damage and prevent the adverse effects of leakage on engineering buildings.

7. Self-leveling materials.

The viscosity of cellulose ether is stable, which ensures excellent fluidity and cement self-leveling, and the water locking rate is controlled to make it dry quickly and reduce cracking and folding.

What is the applicable scope of HPMC?

HPMC is widely used in building decoration materials, building coatings, resin materials, porcelain, medicine, food, textiles, agriculture and animal husbandry, skin care products, cigarettes and other fields. According to the main uses, HPMC can be divided into engineering construction grade, food grade stainless steel and diagnosis and treatment grade. At present, the commodities in China are mostly at the engineering construction level. In the building grade, the use of interior putty powder is large, 90% of which is used up and down, and others are used to mix mortar and super glue.