| Appearance: | Powder |
|---|---|
| Color: | White or Slightly off-White |
| Name: | Cellulose Ether |
|
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Brief Introduction
Hydroxypropyl Methyl Cellulose (HPMC) is non-ionic cellulose ether made from natural polymer cellulose through series
of chemical processes. It contains almost all properties of methyl cellulose (MC) and is the first choice for the production of
high-quality building materials additives. HPMC has the characteristics of thickening, dispersing, emulsifying, film forming,
suspension, adsorption, surface activity, moisture retention and protective colloid. It is suitable for construction dry mortar,
caulking compound, interface agent, coating, and self-leveling agent for new building materials.
HPMC Properties
1. Water Retention
Water retention will be improved, which helps to solve the problem of cement or gypsum construction materials
drying too fast and poor hardening or cracking due to insufficient hydration.
2. Workability
It can enhance the plasticity of mortar and improve the coating efficiency in construction projects.
3. Adhesivity
It can make mortar attach to base material better since the plasticity of mortar is enhanced.
4. Slip Resistance
It can prevent slipping problem between mortar and the base material in construction project as a result of its
thickening effect.
Physical Properties
| Item | Index |
| Appearance | White or slightly off-white powder |
| Particle Size | 80 mesh 100% sieving rate |
| Viscosity (Brookfield RV2% 20°C) | 100-80000 cps |
| Loss on drying (wt%) | ≤5.0 |
| Salinity (wt%) | ≤5.0 |
Technical Index
| HPMC | |||
| Model | DN65 | DN70 | DN75 |
| Methoxyl Content (%) | 17.0-22.0 | 16.5-20.0 | 19.0-24.0 |
| Hydroxypropyl Content (%) | 4.0-9.5 | 6.0-12.0 | 4.0-12.0 |
| Gel Tempreture (°C) | 59-68 | 68-75 | 70-90 |
| Moisture Content (%) | ≤5.0 | ≤5.0 | ≤5.0 |
| Ash Content (%) | ≤4.0 | ≤4.0 | ≤4.0 |
| PH Value | 5.0-8.5 | 5.0-8.5 | 5.0-8.5 |
Viscosity Range
| Spec. | Viscosity By Brookfield |
Viscosity By NDJ-1 |
Spec. | Viscosity By Brookfield |
Viscosity By NDJ-1 |
|
| 400 | 350-550 | 350-550 | 15000 | 10000-15000 | 12000-18000 | |
| 800 | 650-1000 | 650-1000 | 40000 | 24000-32000 | 30000-50000 | |
| 1500 | 1200-1800 | 1200-1800 | 75000 | 32000-40000 | 50000-90000 | |
| 2500 | 2000-3000 | 2000-3000 | 100000 | 38000-45000 | 80000-120000 | |
| 4000 | 3200-4800 | 3200-4800 | 150000 | 45000-67000 | 120000-180000 | |
| 8000 | 6400-9600 | 6400-9600 | 200000 | ≥67000 | ≥180000 |
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