Hydroxyethyl Methyl Cellulose For Construction

●Improves uniformity, makes plastering easier to apply, and increases resistance to downdraft.  Enhance fluidity and pumpability to improve work efficiency.

●High  water retention,prolong the working time of mortar,improve working efficiency,and help mortar develop high mechanical strength during solidification.

●Air infiltration is controlled, thus eliminating micro-cracks in the coating and forming the ideal smooth surface.




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Product Details

Hydroxyethyl methyl cellulose ether soluble in water and some organic solvents.It has the characteristics of thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gelation, surface activity, water retention and colloid protection.  Aqueous solutions can be used as colloidal protectants, emulsifiers and dispersants due to their surface active properties.  Hydroxyethyl methyl cellulose aqueous solution has good hydrophilicity, which is a highly efficient water-retaining agent.


Structural formula 

Hydroxyethyl Methyl Cellulose(n-2)/2

OR=-OH、-[OCH2CH(CH3)]nOH


Specification


Type

Item

 HEMC


4000,6000,7000,


8000,10000,


20000,


30000,

 

Viscosity mPa.s

40000,

60000,


70000,


100000,


150000,


200000

Gel temperature

70.0-90.0

pH

5.0-9.0

Loss on drying %

≤5.0

Burning residue %

≤5.0

Bulk density g/L

350~420

Methoxy %

19.0~24.0

Hydroxyethoxy %

7.0~10.0


HEMC Main application

Hydroxyethyl methyl cellulose (HEMC) is a non-ionic cellulose mixed ether made from cotton and wood through alkalization, ethylene oxide and methyl chloride etherification. HEMC is widely used in water-based latex coatings, construction and building materials, printing ink, oil drilling and other fields. Its properties are similar to HPMC, but the presence of hydroxyethyl makes HEMC more soluble in water, the solution is more compatible with salt, and has a higher condensation temperature.

In the field of building materials, it is used as a gelling agent and water retaining agent for cement, gypsum and lime, and is an excellent admixture for powder building materials.

Hydroxyethyl Methyl Cellulose hydroxyethyl cellulose mhec HEMC


HEMC packaging and storage

Barrel or paper plastic bag lined with polyethylene film inner bag. Net weight of each bag: 25kg.

Protect from sun and rain during storage and transportation.

Hydroxyethyl Methyl Cellulose


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