Hydroxyethyl methylcellulose (MHEC)

 Hydroxyethyl methylcellulose (MHEC) was prepared by adding ethylene oxide (MS0.3~0.4) in methyl cellulose (MC), and its salinity was better than unmodified polymer,gel temperature of MHEC was also higher than MC.

Synonym: 2-Hydroxyethyl methyl cellulose; HYDROXYETHYL METHYL CELLULOSE; CELLULOSE METHYL HYDROXYETHYL ETHER; METHYL HYDROXYETHYL CELLULOSE; Cellulose,2-hydroxyethylmethylether; Tylose MH300; Hydroxythyl Methyl Cellulose; HydroxythylMethylCellulose(Hemc);

Features

Solubility: soluble in water and some organic solvents. Soluble in cold water. Its highest concentration depends only on viscosity. Solubility varies with viscosity. The lower the viscosity, the greater the solubility. Some brand products are soluble in binary organic solvents and organic solvent water systems.

Salt resistance: the product is ionic cellulose ether, and it was not polyelectrolyte, therefore in metal salt or organic electrolyte, in water solution is stable, but addition of electrolytes, excessive can cause gel and precipitation.

Surface activity: due to surface active function of aqueous solution, it can be used as protective agent, emulsifier and dispersant.

Thermal gel: product solution when heated to certain temperature, less transparent, gel, the formation of precipitation, but during continuous cooling, then back to its original state of solution, and gel temperature and precipitation mainly depends on their lubricant, suspending agent, protective colloid, emulsifier, etc.

Metabolism: inert and low odor and fragrance, which are widely used in food and medicine because they are not metabolized and have low odor and fragrance.

Anti-mildew resistance: good anti-mildew resistance, good viscosity stability in long term storage.

PH stability: viscosity of product aqueous solution is hardly affected by acid or alkali, and PH value is stable in range of 3.0-11.0.

Low ash content: since MHEC is a non-ionic type, hot water washing is used effectively in the preparation process, so its ash content is very low.

Shape remains: due to high concentration aqueous solution product compared with other polymer solution has special viscoelasticity , MHEC/HEMC has the ability to improve shape of the extruded ceramic products unchanged, etc.

Water retention:high viscosity of its aqueous solution is effective water retaining agent.

Other features: thickening agent, film forming agent, adhesive, lubricant, suspending agent, protective colloid, emulsifier, etc.

The product application

cement plaster:

1. Improve homogeneity, make the mortar more easily coated, and improve the anti-sagging ability. Enhance liquidity and pumpability, thus improving working efficiency.

2. High water retention, prolong the working time of mortar, improve work efficiency, and facilitate the formation of high mechanical strength during solidification period.

3. Control the infiltration of air, thus eliminating the microcracks of the coating and forming the ideal smooth surface.

Gypsum plaster.

1. Improve homogeneity, make the mortar more easily coated, and improve the anti-sagging ability to enhance the mobility and pumpability. Thus, the work efficiency is improved.

2. High water retention, longer working time of mortar, and high mechanical strength during solidification.

3. A high quality surface coating is formed by controlling the consistency of the mortar.

masonry mortar.

1. Strengthen the adhesion of the surface of the masonry, and enhance the water retention, so as to improve the strength of mortar.

2. Improve the lubrication and plasticity so as to improve the construction performance, and use the mortar made of "guaranteed" cellulose ether to make it easier to apply and save time, and improve the cost-effectiveness.

3. The model with special high water retention can be used for high absorbent bricks.

It is used to fill the material.

1. Excellent water retention, can prolong cooling time and improve working efficiency. High lubricity, make use easier, smooth.

2. Improve the anti-contractility and crack resistance and improve the surface quality.

3. Provide smooth and uniform texture, and make the joint surface more cohesive.

 Tile adhesive

1. Make the dry mixing ingredients easy to mix, and will not produce a mass, thus saving working time. As the application is faster and more effective, it can improve the construction and reduce the cost.

2. Improve the efficiency of tiling by lengthening the cooling time. Provides excellent adhesion effect.

3. Special development model with high anti-skid resistance can be provided.

Self-leveling the ground material.

1. Provide viscosity, which can be used as an anti - precipitation agent.

2. Enhance the liquidity and pumpability, thus improving the efficiency of the flooring.

3. Control water retention, thus greatly reducing cracking and shrinkage.

Water based paint and paint remover.

1. The shelf life is extended by preventing solid precipitation. Excellent compatibility with other components and high biostability.

2. Dissolve fast and without mass, which helps to simplify the mixing process. The cold water disperses the model product, can make the mix more quick and convenient, and does not produce the mass.

3. Generate favorable flow characteristics, including low spatter and good leveling, to ensure fine surface finish and prevent the flow of paint.

4. Enhance the viscosity of the water-based paint remover and organic solvent, so that the paint remover will not flow out of the surface of the workpiece.

Extruded concrete plank.

1. Enhance the processing performance of extruded products, with high bonding strength and lubrication.

2. Improve the adhesiveness of wet strength and sheet extrusion.