The advantages and functions of hydroxypropyl methyl cellulose in building materials

Hydroxypropyl methyl cellulose is particularly widely used in building materials, with industrial monosodium glutamate, often called HPMC, belongs to a tasteless, odorless white powder object, can quickly dissolve in cold water, after the formation of a transparent sticky state of solution. Hydroxypropyl methyl cellulose raw materials are mainly natural polymer material cellulose, often complex chemical processing, so as to produce non-ionic cellulose ether, with more characteristics, such as thickening, water retention, dispersion, emulsification, film, adhesion, gelation and adsorption characteristics.

Hydroxypropyl methyl cellulose is used more in building materials. The following is a brief introduction of the role played in all kinds of building materials for reference only.

1, HPMC in putty powder, water resistant putty has advantages and effects

In putty powder, hydroxypropyl methyl cellulose cellulose ether is the main role of bonding, water retention and lubrication, can avoid due to the putty water loss too fast caused by cracks or powder, at the same time, also can increase the adhesion of putty, but also greatly reduce the flow in the construction of the problem, can make the construction more smooth and convenient.

2. Advantages and functions of HPMC in self-leveling materials

The stable viscosity of cellulose ether can ensure that the self-leveling material has good flow performance and self-leveling characteristics, can control its water retention rate, so that it can quickly solidify, greatly reducing the shrinkage and cracking problems.

3. HPMC has advantages in interfacial agent materials

In the interface agent is mainly used as a thickening agent, can improve the shear strength and tensile strength, effectively improve the coating surface, enhance the adhesion and bonding strength of the coating surface.

4, HPMC on the advantages of ceramic tile binder

Hydroxypropyl methyl cellulose because of its high water performance, you can not pre-soak or wet the ceramic tile and the base, can significantly improve the strength of its bond, the slurry can construction period is longer, and the construction is convenient, uniform and delicate, but also has a better anti-slip performance.

5, HPMC in the sealant groove sealant played the advantage of the role

Adding cellulose ether to the caulk groove sealant makes it have better edge adhesion performance, high wear resistance and low shrinkage, so as to protect the base material from mechanical damage and avoid the adverse effect of water penetration to the whole building.

6, HPMC in the external wall insulation mortar material role and advantages

In the external wall insulation mortar material cellulose ether mainly plays the role of bonding, can increase the strength, make the mortar more easily coated, improve the efficiency of the side of the operation, but also has the anti-hanging performance, improve the thermal insulation mortar anti-shrinkage and cracking performance, effectively improve the surface quality, improve the strength of the bond, while higher water retention performance can extend the use of mortar time.

7, hydroxypropyl methyl cellulose HPMC-mortar field application (plastering mortar masonry) and advantages

Because hydroxypropyl methyl cellulose has high water retention, it can make the cement fully hydrated, significantly increase the bond strength, but also moderately improve the shear strength and tensile strength, effectively improve the quality of construction, improve efficiency.