HEMC for Construction grade

Hydroxyethyl methyl cellulose（HEMC） is a non-ionic cellulose derivative, is an odorless, tasteless, non-toxic white powder, can be dissolved in cold water, forming 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 

(n～2)/2 

OR=-OH、-OCH3、-[OCH2CH(CH3)]nOH or-[OCH2CH(CH3)]OCH3

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.

1. in the pharmaceutical field, hydrophilic gel framework materials and pharmaceutical excipients for the preparation of sustained-release preparations are widely used, including oral tablets, suspensions, local preparations, porogens and coating agents.

2. in the field of food processing, it is used for bonding, emulsification, film-forming, thickening, suspension aid, dispersion, water retaining agent, etc.

3. in the field of daily chemical industry, it is used as an additive for toothpaste, cosmetics, detergent, etc.

4. 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.

Specification

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.