Diferent grades 100000 viscosity Mpa.s hpmc cellulose

Main parameters-Diferent grades 100000 viscosity Mpa.s hpmc cellulose

• Appearance: Whitish powder

• Bulk density:200 - 500 g/l

• Delayed solubility:YES

• Water content max: 5 %

• Ash content max:5%

• Characteristics of aqueous

• solutions pH (2 % solution) :neutral Viscosity at 20°C (Brookfield RVT) 2 % solution : 45000 – 67000 mPa.s Viscosity at 20°C (NDJ-1) 2 % solution : 120000 – 180000 mPa.s

Descriptions-Diferent grades 100000 viscosity Mpa.s hpmc cellulose

Hydroxy Propyl Methyl Cellulose

CAS NO.9004-65-3

hpmc cellulose NL15WMS is a high viscosity product, for cement or gypsum based applications, such as tile adhesives mortar,thermal insulation mortar. It can be soluble in cold water and hot water. It enhances water-retention, besides providing well-balanced properties including open time, slip resistance, adhesion, good impact resistance and shear strength.

Hydroxypropyl methyl cellulose plays three roles in the putty powder: thickening, water retention and construction:

1. Thickening: Cellulose can be thickened to suspend and keep the solution uniform and consistent, and anti-sagging

2. Water retention: make the putty powder dry slowly, and assist the gray calcium to react under the action of water.

3. Construction: Cellulose has a lubricating effect, which can make the putty powder have good workability.

In the role of putty powder, hydroxypropyl methyl cellulose only plays an auxiliary role and does not participate in any chemical reaction. Adding water to the putty powder on the wall is a chemical reaction. Because of the formation of new substances, the putty powder on the wall is removed from the wall and ground into powder to form a new substance, calcium carbonate. Hydroxypropyl methylcellulose just retains water and assists the better reaction of gray calcium, and it does not participate in any reaction.

Hydroxypropyl methyl cellulose HPMC does not participate in any chemical reaction, only plays an auxiliary role. Putty powder is added with water and applied to the wall. It is a chemical reaction. Because of the formation of new substances, the putty powder on the wall is removed from the wall and ground into powder. Then it will not work, because a new substance (calcium carbonate) ) Again. The main components of gray calcium powder are: a mixture of Ca(OH)2, CaO and a small amount of CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O gray calcium in water and air Under the action of CO2, calcium carbonate is formed, while HPMC only retains water and assists the better reaction of gray calcium. It does not participate in any reaction itself.

Putty powder is generally need 100,000 Mpas viscosity HPMC, but the mortar is more demanding, and it needs 150,000 Mpas to work. Moreover, the most important role of hydroxypropyl methylcellulose HPMC is water retention, followed by thickening. In putty powder, as long as the water retention is good and the viscosity is lower (70,000-80,000), it is also possible. Of course, the viscosity is higher, and the relative water retention is better. When the viscosity exceeds 100,000, the effect of viscosity on water retention is not increas so much anymore.

Applications-Diferent grades 100000 viscosity Mpa.s hpmc cellulose

hpmc cellulose NL15WMS is used in cement-based tile fix and EIFS mortars for improvement of workability,consistency, water retention and adhesion. Normal dosage in mortar is 0.1- 0.5% calculated on the dry mortar weight.

hpmc cellulose NL15WMS is intended for dry mixing with other powder materials and can be directly mixed with water.

Packaging and Storage

hpmc cellulose NL15WMS is packed in multiply paper bags with an inner polyethylene bag or valve bags. Net weight 25 kg. We recommend emptying the bags from the bottom. The empty bags can be recycled or burned. In unopened bags, hpmc cellulose MELLUTEL NL15WMS can be stored for several years. In opened bags, the moisture content ofhpmc cellulose  MELLUTEL NL15WMS will be influenced by the air humidity.