Several problems often encountered in dry-mix mortar in engineering applications Dry-mixed mortar is usually called hydraulic cement mixed mortar. It refers to the physical mixing of aggregates (such as quartz sand). inorganic cementitious materials (such as cement) and additives (such as polymers) which are dried…
Adding directly at the time of production, this method is the simplest and least time-consuming method. The specific steps are: 1. Add a certain amount of boiling water to the stirred vessel with high shear stress (the hydroxyethyl cellulose product is soluble in cold water,…
Simply judge the quality of hydroxypropyl methyl cellulose Hydroxypropyl methyl cellulose has the characteristics of thickening, bonding, dispersing, emulsifying, film forming, suspending, adsorbing, gelling, surface active, retaining moisture and protecting colloids. The scope of application is very wide. 1.Fineness Hydroxypropyl methyl cellulose generally has a…
What is the choice of HPMC viscosity when producing putty powder dry mortar? Methylcellulose MC and hydroxypropylmethylcellulose (HPMC) have stable chemical properties. mildew resistance and water retention, and are not affected by pH changes. The viscosity can be used from 50,000 to 200,000, but in…
The quality of cellulose ether determines the quality of the dry mortar In the ready-mixed mortar, the amount of cellulose ether added is very low, but it can significantly improve the performance of the wet mortar, which is a major additive that affects the performance of…
Simple identification method for cellulose ether for putty and mortar Cellulose ether is widely used in petrochemical, pharmaceutical, paper, cosmetics, food, beverage, building materials, there are thousands of varieties, is a widely used additive, different uses, have different performance requirements for cellulose products. This paper…
Water retention of cellulose ether The water retention of mortar refers to the ability of mortar to maintain and lock moisture. The higher the viscosity of cellulose ether, the better the water retention. Since the cellulose ether structure contains both the hydroxide and the ether…
Cellulose ether solubility Cellulose ether is a polyhydroxide polymer compound that is neither dissolved nor melted. Cellulose can be dissolved in water, dilute alkali solution and organic solvent and has thermoplastic properties. The solubility of cellulose ether after Etherization has changed significantly, which can be dissolved in water,…
HPMC for cement-based building materials mortar 1 water retention Hydroxypropyl methylcellulose HPMC for construction avoids moisture infiltration into the wall. The proper amount of water stays in the mortar, so that the cement has a longer time for hydration. The water retention is proportional to…
Types differences and uses of HPMC HPMC can be divided into instant and hot dissolution. The instant product is surface treated with glyoxal and quickly dispersed with cold water. At that time, the liquid has no viscosity because it’s just dispersed water. No real dissolution….
