The main raw material of HPMC is as bellow:
Refined cotton, methyl chloride, propylene oxide, other raw materials, caustic soda, acid, toluene, isopropanol, etc.
What is the key effect of hydroxypropyl methylcellulose in putty powder, and whether organic chemistry occurs?
HPMC plays three functions of thickening, water retention and construction in putty powder.
Thickening: Methylcellulose can be concentrated with floating, aqueous solutions to maintain uniform and consistent functionality and prevent flow hangs.
Water retention: The interior wall powder dries slowly, and the added calcium lime is reflected in the use of water.
Engineering construction: Methyl cellulose has a lubricating effect, which can make the putty powder have an excellent engineering structure. HPMC is not involved in all chemical changes but only in supplementation. Putty powder, on the wall, is a chemical change, because there is a new chemical substance transformation, the putty powder comes out of the wall, grinds out the powder, and reuses because a new chemical substance (calcium carbonate) has been produced. The main components of calcium fly ash are: Ca(oh)2, Cao and a small amount of Caco3 compounds, Caoh2oCa(oh)2-Ca(oh)2caco3h2o lime can be converted into calcium bicarbonate in water and gas, while mpc is only water soluble Calcium fly ash is a stronger reflection, which itself does not participate in any reflection.
Why does the tile adhesive use high-viscosity hydroxypropyl methylcellulose, and what does it do: hydroxypropylmethylcellulose has better thickening properties in putty powder, and is very good in cement mortar and glue. water retention and adhesion. It has excellent wetting, dispersing, cohesive, thickening, emulsifying, water-retaining and film-forming properties, and its impermeability to oil. Danzhai Hydroxypropyl Methyl Cellulose agent supplies a large number of dispersants and stabilizers. Ionic CMC is mainly used in synthetic detergent spinning. Also widely used in synthetic resin, petrochemical, ceramics, paper, leather, food and cosmetics industries.
Post time: Nov-17-2022