Hydroxypropyl methylcellulose can increase the viscosity of the mixed water and increase the consistency of the mixture. It is a hydrophilic polymer material that can be dissolved in water to form a solution or dispersion. High water retention can fully hydrate the cement, significantly increase the bonding strength, and at the same time, it can appropriately increase the tensile strength and shear strength, improve the construction effect, and improve the work efficiency. Therefore, it is widely used in dry mix mortar.
Physicochemical properties of Hydroxypropyl Methyl Cellulose (HPMC)
Index
65YD
75YD
Methoxy,%
27-30
19-24
Hydroxypropyl,%
7.0-12
7.0-12
Gel temperature,℃
55-68
70-90
Moisture,%
≤5
Ash,%
≤5
PH value:
6-8
Viscosity(2%,20℃)
5-200000
Exterior
White or slightly yellowish white powder
Graininess
98% pass 80 mesh
Density
370-390g/l⊃3;
How to choose HPMC factory and manufacturer
There are many HPMC suppliers all over the world, and most of them are distributors rather than manufacturers.
A truly professional HPMC manufacturer has a strict production process in addition to special equipment.
Hebei Yida's HPMC production process is as follows:
Hydroxypropyl methyl cellulose (HPMC) is made of refined cotton after being pulverized, alkalized with sodium hydroxide (liquid caustic soda) solution, and then added with chloromethane + propylene oxide for etherification reaction to form HPMC crude product , After neutralization (pH value adjustment), filter press, drying, crushing and sieving, pure HPMC with a certain fineness can be obtained. The finished product has a slight smell, the smell of methane.
YIDA HPMC Viscosity Comparison Table of Different Models
Hebei YIDA Cellulose Co., Ltd. is a construction cellulose manufacturer with 16 years of industry experience. Own HPMC, RDP, HEC, HEMC, water reducing agent, gypsum retarder production line. The annual output is 50,000 tons, which are sent to more than 40 countries in the world.
YIDA has a modern chemical laboratory and an independent R&D team, which can provide you with customized production services and look forward to cooperating with you.
HPMC hydroxypropyl methylcellulose produced by YIDA can be used as a thickener, dispersant, and stabilizer in construction mortar, tile adhesive,wall putty,gypsum mortar,cement mortar and so on.
YIDA VAE/RDP has good film-forming properties, is easily soluble in water and easy to form emulsions, has strong cohesion, and has strong tensile properties. It can give mortar good fluidity and workability, and effectively improve mortar cohesion and impact resistance. resistance, wear resistance, weather resistance, sealing, impermeability and bond strength.
Polycarboxylate superplasticizer is a chemical admixture for concrete and self-leveling mortar, which can improve the workability of concrete and reduce water consumption.
The defoamer is a powder defoamer for nonionic surfactants used in cement and gypsum-based dry-mixed mortar mixtures. It has the characteristics of easy dispersion, fast defoaming, high stability and strong adaptability.