Water retention agent
Cellulose ether water retention agent.
Factors such as air temperature, temperature and wind pressure speed will affect the volatilization rate of water in cement mortar and gypsum-based products. Therefore, in different seasons, adding cellulose ether products can improve the construction progress and construction effect.
Excellent cellulose series products can effectively solve the problem of water retention under high temperature. In high temperature seasons, especially in hot and dry areas and thin-layer construction on the sunny side, high-quality cellulose is required to improve the water retention of the slurry.
High-quality cellulose has very good uniformity. Its methoxyl and hydroxypropoxyl groups are evenly distributed along the cellulose molecular chain, which can improve the ability of the oxygen atoms on the hydroxyl and ether bonds to associate with water to form hydrogen bonds. ability to convert free water into bound water. Thereby effectively controlling the evaporation of water caused by high temperature weather and achieving high water retention.
High-quality cellulose can be uniformly and effectively dispersed in cement mortar and gypsum-based products. And wrap all solid particles, and form a wetting film. The moisture in the base is released gradually over a long period of time, and hydration reaction occurs with the inorganic gelling material, so as to ensure the bonding strength and compressive strength of the material.
Next is cellulose ether water retention agent delegate.
Product representatives: HPMC, HEMC, HEC, EHEC, CMC
Hydroxypropyl methylcellulose
1.Brief Introduction
HPMC-Hydroxy Propyl Methyl Cellulose and Methyl Hydroxyethyl Cellulose and non-ionic cellulose ether made by natural high polymer cellulose as raw material and series of chemical processing. They are odorless, tasteless and non-toxic white powder, which can be dissolved in cold water to form a transparent viscous solution. Processing thickening, binding, dispersing, emulsifying, film, coating, suspending, absorbing, gelling, surface activity, water maintaining and protective colloid properties.
CAS No.：9004-65-3
2.Parameter:
| Items | Technical data | Units |
| Appearance | White or off-white powder | |
| Methoxy | 19%~24% | % |
| Hydroxypropoxy | 4%~12% | % |
| Viscosity range (2%,Brookfield) | 300-65000 | mPa.S |
| Viscosity range (1%, NDJ) | 300-200000 | mPa.S |
| Moisture | ≤5 | % |
| PH Value | 7-9 | |
| Gel temperature | 60-75 | % |
| Packing Density | 250 – 360 | g/l |
3.Applications
HPMC for Tile Grouts
Viscosity range:4000Mpa.S
-Jointing of floor tiles and wall tiles
-Jointing between porcelain polished tiles or Non-porcelain polished tiles
-Cement-based joint filler
-Indoor and outdoor application
HPMC for Tile Adhesive
Viscosity range:150000-200000Mpa.S
-High quality flexible tile adhesive
-Used for various glass and non-glass ceramic tile adhesive
-Adhesive for floor and wall tile
-Suitable for mineral substrate and non-mineral substrate
Advantages
– Improve the adhesion between ceramic tile sealant and ceramic tile edge;
– Improve the flexibility and deformation ability of caulking agent;
– Give caulking agent excellent hydrophobicity to improve water resistance and stain resistance;
– Salt-petering reduction
HPMC for skim coat (HPMC for wall putty)
Viscosity range:100000-150000Mpa.S
-Interior wall decoration
-For external wall putty
-Surface treatment on different base materials
Advantages
–Enhances the adhesion of putty to various base materials
–Improve water retention, consistency and stability of putty
–Gives good workability to putty
HPMC for plaster mortar
Viscosity range:40000-70000Mpa.S
-Handy gypsum plaster
-Iinterior finishing/skim coat plaster
-Sprayed gypsum render
Advantages
-Increasing the thelloxotropy
-Improving fluidity and pumpability
-Extending the open time
-Enhancing the mechanical strength
HPMC for self-leveling mortar
Viscosity range:300-400Mpa.S
-Industrial and residential flooring
-Cement based self-leveling materials and screeds
-Gypsum based floorings
-Pumpable and hand-applied self-leveling materials
Advantages
– Increased leveling, surface aesthetics and abrasion resistance
– Improves flexural and tensile bond strength on various substrates
– Against bleeding and segregation
4.Packing
In 20/25kg paper bags inner with PE bags
20’FCL:10 tons with pallets or 11 tons without pallets
5.Storage &Transportation:
-No Damage during the transportation;
– Protect from Humidity, Rain, Sunlight, Damp and wet;
-Put in dry and ventilated Place During storage;
– Remind must be promptly sealed and packed to prohibit from wet.
