Classification of construction material hydroxyethylmethyl cellulose/HEMC
Product name: Methyl 2-hydroxyethyl cellulose(HEMC)
CAS NO.: 9032-42-2
Synonyms: HYDROXYETHYL METHYL CELLULOSE, CELLULOSE METHYL HYDROXYETHYL ETHER
Raw material:
Product:
Introduction of construction material hydroxyethylmethyl cellulose/HEMC
HEMC is non-ionic cellulose ether produced from natural high molecular cellulose through series of chemical changes. They are characterized by soluble in cold water, flocculates at elevated temperatures
Characteristics: 1.Long open time2.High water retention
3.Sufficient tensile adhesionstrength
Specification of construction material hydroxyethylmethyl cellulose/HEMC
| Product | Methyl 2-Hydroxyethyl Cellulose | |
| Methoxy | Content(%) | 22.0-32.0 |
| DS | 1.3-2.5 | |
| Hydroxy ethoxy | Content(%) | 2.0-14.0 |
| Substitution value | 0.06-0.5 | |
| Moisture Content(wt%) | ≤3.0 | |
| Ash(wt%) | ≤3.0 | |
| P H value | 5.0-7.5 | |
| Density (g/ml3) | 1.26-1.31 | |
| Appearance | White freely flowing powder | |
| Fineness, mesh | 80, 100 | |
| Viscosity(mpa.s) | According to customer's requirement | |
Viscosity table:
| iscosity name | Viscosity range, NDJ-1,2%solution,20°C m Pa.s | Viscosity range, Brookfield, 2%solution, 20°C mPa.s |
| 40 000 | 36000-45000 | 12 000-28 000 |
| 60 000 | 56000-65000 | 28 000-35 000 |
| 75 000 | 70000-80000 | 35 000-40 000 |
| 100 000 | 85000-130000 | 40 000-50 000 |
| 150 000 | 130000-180000 | 50 500-60 000 |
| 200 000 | >180000 | > 60 000 |
Application of construction material hydroxyethylmethyl cellulose/HEMC
Cement-based mortar
1. Improve the uniformity, makes easier to coating the mortar, and improve the vertical flow resisitance simultaneously. Enhance the liquidity and pumpability, so as to improve the work efficiency.
2. High water retention and prolong the working time of mortar, improve work efficiency, and help to make high mechanical strength in mortar freezing period.
3. Control the air infiltration, thus eliminating the coating microfissuring, to make the ideal smooth surface.
Gypsum mortar and gypsum products
1. Improve the uniformity, makes easier to coating the mortar, and improve the vertical flow resisitance simultaneously. Enhance the liquidity and pumpability, so as to improve the work efficiency.
2.High water retention, to prolong the working time of mortar, and help to make high mechanical strength in mortar freezing period.
3. By controlling the mortar uniform thickness, to make the high quality surface coating.
Masonry mortar
1. Enhance the adhesiveness to masonry surface and the water retention, to improve the strength of the mortar.
2. Improve the lubricity and plasticity to improve the workability. Using cellulose ether to enhance mortar is easier to consdruct and save time, and improve the cost-effectiveness.
3. There is high water retention type in particular, applying to high water-absorbing.
bricks. Plate joint sealing material
1. Good water retention, can prolong open time and improve the work efficiency. High lubricity, makes it easier to use and smooth-going.
2. Improve the shrinkage resistance and crack resistance, to improve the surface quality.
3. To provide the smooth and uniform texture, and make the adhesiveness of joint surface stronger.
Ceramic tile adhesive
1. Make it easier to blend the dry mixture and no clumps , thus saving the work time. And the faster and more effective construction can improve the workability and reduce the cost.
2. By prolonging the open time, to improve the tiling efficiency and provide excellent adhesiveness.
3. There is special development model of high slip resistance.
Self-leveling flooring
1. Provide the viscosity, can be used as anti-sludging agent.
2. Enhance the liquidity and pumpability, so as to improve the flooring efficiency.
3. Control the water retention, thus greatly reducing cracks and shrink.
Water-based paint and varnish remover
1. By preventing solid precipitation and prolong the storage period.There is good compatibility with other components and has high biological stability.
2. Dissolve fast and without clumps, helps to simplify the mixing process. Cold water dispersion model, can mix faster and more convenient and no clumps.
3. Produce favorable flow characteristics, including low splashing and good leveling, to ensure fine surface finish and prevent the oil paint flow.
4. Strengthen the viscosity of water-based and organic solvent paint remover, to make the paint remover not outflow from the workpiece surface.
Extrusion molding concrete plate
1. Enhance the extrusion products processing performance, and has high bonding strength and lubricity.
2. Improve the wet strength and the adhesiveness of plate after extrusion.
1.Normal package:25kg/bag
2. OEM packing
Storage of construction material hydroxyethylmethyl cellulose/HEMC
Keep the product un-stacked in dry and closed rooms at normal temperature and air humidity. To achieve best possible results, we recommend storage under the condition stated above and use within 12 months from delivery. Avoid breathing duct when handling, and wash with soap & water in case of skin contact.
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