Questions about You Should Know about HPMCMarch 23rd 2023
In the use of building materials, hydroxypropyl methyl cellulose HPMC is a commonly used building material additive, hydroxypropyl methyl cellulose is widely used in industry, and has different types, hydroxypropyl methyl cellulose can be divided into For cold water instant type and hot melt type.
Cold water instant HPMC can be used in putty powder, mortar, liquid glue, liquid paint and daily chemical products. Hot melt HPMC is usually used in dry powder products and directly mixed with dry powder for uniform application, such as putty powder and mortar, hydroxypropyl methylcellulose can be widely used to improve the performance of cement, gypsum and other hydrated building materials. In cement-based mortars, it improves water retention, extends set-up time and open time, and reduces flow suspension.
Hydroxypropyl methylcellulose can be used in building material mixing and construction, and dry mix formulations can be quickly mixed with water to quickly achieve the desired consistency. Cellulose ether dissolves faster without clumping. Propyl methyl cellulose can be mixed with dry powder in building materials, it has the characteristics of cold water dispersion, can suspend solid particles well and make the mixture more fine and uniform. Additionally, it enhances lubricity and plasticity, increases machinability, and facilitates product construction. Enhanced water retention, longer working time, helps prevent vertical flow of mortar and tiles, prolongs cooling time and improves working efficiency.
Hydroxypropyl methylcellulose improves the bond strength of tile adhesives, improves the crack resistance of mortar and board joints, not only increases the air content in the mortar, but also greatly reduces the possibility of cracking, it can also improve The appearance of the product and can enhance the anti-sag performance of the tile adhesive.