Hydroxypropyl methyl cellulose (HPMC) is made from refined cotton after being pulverized, and then alkalized with sodium hydroxide (liquid caustic soda) solution, and then monochloromethane + propylene oxide is added for etherification to form crude HPMC , After neutralization (pH adjustment), filter press, drying, crushing and sieving, a pure HPMC product of certain fineness is obtained. The finished product has a slight smell, the smell of methane.
mainly used in bonding mortars, with excellent water retention, high thickening, anti-sagging, increasing open time, improving bonding strength, reducing deformation rate, preventing cracking, etc. Performance, the production cost can be reduced by adjusting the low dosage
Yida Redispersible polymer Powder (VAE/RDP) YD1030 is formed by spray drying of ethylene and vinyl acetate copolymer emulsion using polymerization process. This product has good film-forming properties, easily soluble in water and easy to form emulsions, strong adhesion and strong stretchability. It can give the mortar good fluidity and workability, and effectively improve the cohesion, impact resistance, abrasion resistance, and Weather resistance, airtightness, impermeability and bonding strength.
Polymer composition
Exterior :White powder, free flowing
Solid content,% :â?¥98.0
Ash content,%:15�±2
Bulk density, g/l�³:400-600
Average particle size, m:80-120
pH value:6-8
Film forming temperature, : 0-5
