The Key to Paint Thickening: HPMC Application Analysis in Coatings In construction and decoration, paint must not only look good but also ensure ease of application and uniform film formation. However, coatings often face two challenges during use: Insufficient viscosity → Prone to splattering and sagging during application, resulting in poor workability; Poor leveling → Brush marks … Continue reading
HEMC (Hydroxyethyl Methyl Cellulose) and HPMC (Hydroxypropyl Methyl Cellulose) commonly used in the construction industry have excellent water solubility, but if directly added to water, they can cause clumping. So for fine powdered methyl cellulose ethers (non surface treated), to avoid clumping in water, the appropriate dissolution method is: First, disperse cellulose ether in hot … Continue reading
1.Adulterated Hydroxypropyl Methyl Cellulose (HPMC) is different from pure hydroxypropyl Methyl Cellulose (HPMC). Appearance: Pure Hydroxypropyl Methyl Cellulose (HPMC) looks fluffy and has a small bulk density, ranging from 0.3-0.4g/ml; The adulterated Hydroxypropyl Methyl Cellulose (HPMC) has better fluidity and a heavier feel, which is significantly different from the appearance of the genuine product. Condition: Pure Hydroxypropyl Methyl Cellulose (HPMC) powder is fibrous … Continue reading
In dry mixed mortar products, due to the addition of cellulose ether(HPMC/ Hydroxypropyl Methylcellulose), a certain amount of small, uniform and stable air bubbles will be introduced into the fresh plastering mortar. Due to the bubble ball effect, the mortar has good construction properties- reduce the shrinkage of mortar and crack and improve the output rate of mortar. Depending on the strength and consistency of … Continue reading
The most important characteristic of cellulose ether (Hydroxypropyl Methylcellulose(HPMC) is its water retaining capacity in building materials. As water also plays a role of lubrication and mixing in the inorganic composition, sufficient moisture can meet the requirement of construction. Thus thin layer of sand mortar can be easy to card or repeatedly plaster to be leveled. In addition, due … Continue reading
Anti-dispersion is an important technical indicator to measure the quality of anti-dispersion agents. Hydroxypropyl Methylcellulose(HPMC) is a water-soluble polymer compound, also known as water-soluble resin or water-soluble polymer, which can increase the viscosity of mixed water by increasing the consistency of the mixture. It is a hydrophilic polymer substance that can form a solution or dispersion after dissolving … Continue reading
The Water Retention Functions and Principles of Hydroxypropyl Methylcellulose The HPMC mainly plays a role in water retention and thickening, able to effectively improve the bond force and sag resistance of slurry. Air temperature, humidity, wind pressure and other factors will affect the evaporation rate of water in cement mortar and gypsum-based products. Therefore, in … Continue reading