News

Tile adhesives are compounds used to stick tiles to walls or floors firmly. Tile adhesive is expected to fix the tiles not just for several years but for decades without failure. Therefore, it must be easy to use and should not have any gaps between the tile and the substrate.

According to the application, Hydroxypropyl Methyl Cellulose (HPMC) can be divided into construction grade, food-grade, and medical grade. In construction, HPMC is mainly used in putty powder, accounting for 90% of the total.

The construction industry has experienced massive growth in incorporating new materials to enhance the output and overall performance of construction products. Among such trendy innovations is the gypsum plaster.

Viscosity is an important parameter of HPMC performance. At present, different HPMC manufacturers use different methods and instruments to determine the viscosity of HPMC. The main methods are HaakeRotovisko, Hoppler, Ubbelohde and Brookfield.

200000 viscosity hydroxypropyl methyl cellulose

HPMC hydroxypropyl methyl cellulose quality is not the determinant of whiteness, some manufacturers in the production process can not be added to determine product quality whitening agent.

1. What is the role of redispersible powder in gypsum-based mortar?

Answer: The role of dispersible polymer powder in wet gypsum slurry:

The cold water instant type of hydroxypropyl methyl cellulose HPMC is surface-treated with glyoxal, and it is quickly dispersed in cold water, but it is not really dissolved. When the viscosity rises, the aqueous solution becomes clear. The hot melt type is not surface treated with glyoxal.

Cellulose products are all derived from natural cotton pulp or wood pulp, which are obtained through etherification. Different cellulose products use different etherification agents. Hydroxypropyl methylcellulose HPMC uses other types of etherification agents (chloromethane and propylene oxide), and hydroxyethyl cellulose HEC uses etherification agents. ethylene oxide.