Methylcellulose (MC) and methyl hydroxyethyl cellulose (MHEC) is soluble in water with tremendous performance. The cellulose is best for coating on buildings as thickeners, water-retaining agents, retarders and binders. MC and MHEC are rigorously used in cement, plaster, mortar and lime. In cement manufacturing, Methyl Hydroxy Ethyl Cellulose manufacturer can be contacted as a water-retaining agent and as a retarder. While in mortar and concrete composition, it can improve the shrinkage and viscosity, control the setup time in the cement of structural grade, strengthen the bond force, increase the bending strength and initial strength.
Since methyl hydroxyethyl cellulose has the ability of water retention, it can reduce water loss on the concrete surface, improve adhesion and construction performance and avoid cracks on the surface. In construction, MHEC can adjust and extend the setting time, suitable for mechanical construction for increasing the construction efficiency and helps to prevent weathering of water-soluble salts.
Gypsum-based product or cement can gel through the hydration reaction. Water transforms silicates in cement into anhydrous calcium sulfate and complex hydrates. If there is no water, n reaction can occur, and strength will be absent. If there is water loss on the interface in touch with cement mortar, binders and plaster, there will be no strength and no bonding on this part. Generally, the surfaces in contact with the mentioned materials are adsorbents which adsorb water from the surface and result in insufficient hydration at this part, so that the bond strength between wall and water decreases.
A significant responsibility of Methyl Hydroxy Ethyl Cellulose is to enhance water retention of construction materials and immensely improve shear strength. Water retention keeps of MHEC on better with the increase in viscosity.
By the addition of Methyl Hydroxy Ethyl Cellulose, the bonding of binders, plaster and cement mortar can be significantly improved, which can assure the pasting of ceramic tiles. Due to this cellulose, tiles do not slide down and plaster and wall; brick and wall remain firmly bonded.
The amount of Methyl Hydroxy Ethyl Cellulose should not be too less or too more because too much will cause inconvenience for construction. While too less, on the other hand, would cause hollow effects on caulking materials and plaster.
Methyl Hydroxy Ethyl Cellulose can be used as set retarders building materials which are cement-based. If there is no particular need for long construction, such set retarders are sufficient. Methyl Hydroxy Ethyl solution has specific set retarding effects on products based on gypsum.
After addition of Methyl Hydroxy Ethyl Cellulose, several tiny bubbles can be formed inside the material such as honeycomb structure. Small bubbles act like lubricants and can have excellent construction performance. Further, the honeycomb structure stops the capillary action formed after cement hardening and averts the penetration of water. The impact of the air-en training agent improves the heat resistance of the products too.
There are more properties however, the cellulose standout as an adhesive for construction material.