< >

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.

Contact Now

Product Details

Hydroxyethyl methyl cellulose is a odorless, odorless, non-toxic white powder that can be dissolved in cold water to form a transparent viscous solution.It has the characteristics of thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gelation, surface activity, water retention and colloid protection. Widely used in water-based latex coating,building construction and building materials, printing ink, oil drilling and other aspects, play the role of thickening water retention, improve the construction, used for wet and dry mortar series products.

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.