Description

2-hydroxyethyl methyl cellulose

 

2-hydroxyethyl methyl cellulose Quick Details

Chemical Name: 2-hydroxyethyl methyl cellulose

Other name:HEMC

CAS No.:9032-42-2

Molecular Formula:OR=-OH、-OCH3、-[OCH2CH2]nOH or -[OCH2CH2]nOCH3

Appearance: white or off-white powder, odorless and tasteless.

Particle size: the passage rate of 100 meshes is more than 98.5%; and 80 meshes is 100%.

Apparent density: 0.30-0.60g/cm3.

Solubility: It is soluble in water and some organic solvents. It can be dissolved in cold water. And solubility varies with the viscosity. The lower the viscosity, the higher  the solubility. HEMC with the surface treatment will disperse in cold water, not to agglomerate, and slowly dissolve. However, if the pH value is adjusted to 8-10, it can be quickly dissolved.

 

2-hydroxyethyl methyl cellulose Properties

Item Index Substituting degree
Methoxyl     % 22.0-30.0 1.3-2.5
Hydroxyethyl   % 2.0-14.0 0.06-0.5
Gelation temperature ℃ 60-90
Moisture content  % ≤5
 Ash content     % ≤5
pH value: 1% solution, 25℃ 4.0-8.0
Viscosity 2%

(aqueous solution,

20℃,mPa· s)

350-200000

 

Note 1: Those specifications mentioned above all have decentralized model of cold water (delay dissolving ), and S is on behalf of the decentralized model of cold water.

Note 2:The viscosity is according to customer requirements.

 

2-hydroxyethyl methyl cellulose Usage

Cement mortar

With its thixotropy and easy to close, mortar has a pumping. At the same time, it can improve the ability of resisting vertical flow and high water retention. Also it can prolong the working time of mortar and help form high mechanical strength of mortar in solidification.

Gypsum plaster and gypsum products

As a binder, its thixotropy and coagulation can improve and extend the operational time of painting. With its water retention, the slurry after smearing will not dry too fast and crack, but increase strength after hardening.

Masonry mortar can enhance adhesion with the surface and ability to retent water, so as to increase the strength of cement mortar. It also can increase the lubrication and plasticity to improve the performance of construction

Plate filler

With excellent water retention, lubricity, high resistance to shrinkage and crack resistance, it can provide smooth and uniform texture of the material to ensure the bonding surface adhesion.

Ceramic industry

 It is widely used as a binder in the manufacture of ceramic products.

Self-leveling floor material

With its improved fluidity and pumpability, it can improve the efficiency of grounding, control water retention, thus greatly reduce the cracking and shrinkage.

Extrusion of formed concrete plate

With high adhesive strength and lubrication, it can enhance processing properties of extrusion products. It can improve wet strength and adhesiveness after extrusion.

 

2-hydroxyethyl methyl cellulose Packaging and Shipping 

25kg/fiber drum

 

2-hydroxyethyl methyl cellulose Storage

Be stored in cool,dry,and ventilated storage,free from heat or sunlight and free from toxic and harmful foods.Be protected with pall on delivery,keep free from rain moisture,toxic,and harmful goods. Shelf life:two years.