Hydroxypropyl methylcellulose ether (HPMC) has water retention and thickening effects in cement mortar and gypsum-based mortar, and can reasonably improve the adhesion and vertical resistance of the mortar.
Factors such as gas temperature, temperature, and gas pressure rate are detrimental to the rate of evaporation of water in cement mortars and gypsum-based products. Therefore, the same total amount of commercial hydroxypropyl methylcellulose ether (HPMC) added to maintain water availability varies from season to season.
When pouring concrete, the effect of water lock can be adjusted according to the increase or decrease of high flow rate. The water locking rate of hydroxypropyl methylcellulose ether at high temperature is a key indicator value to distinguish the quality of hydroxypropyl methylcellulose ether.
High-quality hydroxypropyl methylcellulose ether (HPMC) products can reasonably handle the problem of high temperature water locking. In high temperature seasons, especially in hot and humid areas and chromatography engineering buildings, it is necessary to use high-quality hydroxypropyl methylcellulose ether (HPMC) to improve the water solubility of the slurry.
The proportion of high-quality hydroxypropyl methylcellulose ether (HPMC) is very uniform, and its methoxy and hydroxypropyl groups are evenly distributed on the molecular structure chain of methyl cellulose, which can enhance the generation of oxygen molecules on the hydroxyl and ether bonds. The ability of covalent bonds to function.
It can reasonably control the evaporation of water caused by hot weather and achieve the actual effect of high water locking. High-quality Hydroxypropyl Methylcellulose Ether (HPMC) is found throughout mixed mortars and plaster of paris crafts.
All solid particles are encapsulated to form a wet film. Conventional water is released slowly over a long period of time and undergoes a coagulation reaction with inorganic materials and collagen materials to ensure the bonding compressive strength and tensile strength.
Therefore, in high-temperature construction sites in summer, in order to achieve the actual effect of saving water, people must add high-quality hydroxypropyl methylcellulose ether (HPMC) products according to the secret recipe, otherwise they will be short of water due to water shortage. Product quality issues such as solidification, reduced compressive strength, cracks, air bulges, etc. cause excessive drying.
This also increases the difficulty of construction for workers. As the temperature decreases, the added amount of hydroxypropyl methylcellulose ether (HPMC) gradually decreases to achieve the same moisture content.
Post time: Feb-06-2024