hydroxyethyl methyl cellulose for Russia
hydroxyethyl methyl cellulose (HEMC) is an essential component in the construction industry. It has various uses, including cement and mortar additives, water retention agent, and adhesive, among others. In Russia, HEMC is widely used, especially in the construction and paint industry.
HEMC is a modified cellulose material that combines the properties of cellulose and synthetic materials. It has excellent water retention capacity, thickening ability, and emulsification properties, making it highly useful in construction and paint applications. Notably, HEMC remains stable under high temperatures and extreme pH conditions.
The benefits of using HEMC in construction applications are numerous. For instance, it improves the workability and consistency of cement and mortar, enhances the adhesion of tiles, reduces cracking, and enhances durability. Additionally, HEMC is an eco-friendly and non-toxic material that does not harm the environment.
Russia is a significant consumer of HEMC, with demand growing steadily in the construction and paint industries. The quality of HEMC products manufactured in Russia is top-notch, making them suitable for use across a wide range of applications.
HEMC is also highly popular in other countries, including Indonesia, India, Singapore, Rwanda, and Pakistan. These countries have a booming construction industry, and HEMC's properties make it an essential material in their construction and paint sectors.
In conclusion, HEMC is a versatile material that is crucial in the construction and paint industry. Its numerous benefits, such as water retention capacity, thickening ability, and stability under harsh conditions, make it an ideal material for various applications. Whether in Russia, Indonesia, India, Singapore, Rwanda, or Pakistan, HEMC remains a popular material for construction professionals.
Faq
What is the main function of HPMC in putty powder and does it undergo a chemical reaction?
HPMC has three functions in putty powder: thickening, water retention, and facilitating construction. It does not participate in any reaction. The formation of bubbles in putty powder can be caused by two reasons: (1) Excessive water content. (2) Applying another layer on top before the bottom layer has dried, which can also lead to the formation of bubbles.
What is the main function of HPMC in putty powder and does it undergo a chemical reaction?
The viscosity of HPMC is inversely proportional to temperature, meaning that viscosity increases as temperature decreases. When we refer to the viscosity of a certain product, it generally refers to the measurement result of its 2% water solution at 20 degrees Celsius.
In practical applications, in regions with large temperature differences between summer and winter, it is advisable to use relatively lower viscosity during winter for better construction. Otherwise, at low temperatures, the viscosity of the cellulose increases, resulting in a heavier feel during application.
Medium viscosity: 75,000-100,000 (mainly used for putty)
Reason: Good water retention.
High viscosity: 150,000-200,000 (mainly used for polystyrene particle insulation mortar powder and foamed glass bead insulation mortar)
Reason: High viscosity, reduces mortar dusting and sagging, improves construction.
However, in general, higher viscosity provides better water retention. Therefore, many dry mortar manufacturers consider using medium-viscosity cellulose (75,000-100,000) instead of low-viscosity cellulose (20,000-40,000) to reduce the dosage and costs.
Why does hydroxypropyl methylcellulose (HPMC) have an odor?
1. Whiteness: Although whiteness alone does not determine the usefulness of HPMC, higher-quality products usually have better whiteness.
2. Fineness: HPMC is typically available in 80 and 100 mesh sizes, with fewer options in 120 mesh. Finer particles generally indicate better quality.
3. Transmittance: When HPMC is dissolved in water and forms a transparent colloidal solution, higher transmittance indicates fewer insoluble impurities.
4. Specific gravity: Higher specific gravity is generally better. A higher specific gravity is often due to a higher content of hydroxypropyl, which results in better water retention.
Is there any relationship between powder loss in putty and HPMC?
In simple terms, "non-ionic" refers to a substance that does not ionize in water. Ionization refers to the process in which electrolytes dissolve in specific solvents (such as water or alcohol) and dissociate into freely moving charged ions. For example, table salt we consume daily—sodium chloride (NaCl)—when dissolved in water, ionizes and produces freely moving sodium ions with a positive charge and chloride ions with a negative charge. In other words, when HPMC is placed in water, it does not dissociate into charged ions but exists in molecular form.