Hydroxypropyl methyl cellulose HPMC mainly has three viscosities, HPMC-100000, HPMC-150000, and HPMC-200000 viscosity. Generally speaking, hydroxypropyl methyl cellulose with a viscosity of 100,000 is commonly used in the production of interior and exterior wall putty powder. Cellulose has a viscosity of 200,000 and is used in building materials such as dry mortar, easy stone mud, diatom mud, and wall coverings. The product has good water retention effect, good thickening effect, stable quality and reasonable price.
Hydroxypropyl methylcellulose HPMC is widely used in the building materials industry. A large amount of cellulose can be used as a retarder, water retaining agent, thickener and binder. Cellulose ether plays an important role in ordinary dry-mix mortar, high-efficiency exterior wall insulation mortar, self-leveling mortar, dry powder plastering adhesive, ceramic tile bonding dry powder mortar, high-performance building putty, crack-resistant interior and exterior wall putty, etc. , waterproof dry-mix mortar, gypsum plaster, scraping whitening agent, thin-layer joints and other materials. They have a significant impact on the water retention, water requirements, soundness, retarding and workability of stucco systems. Commonly used cellulose ethers in the construction field include HEC, HPMC, CMC, PAC, MHEC, etc.
Nonionic water-soluble cellulose ethers are useful building material additives because of their binding properties, dispersion stability, and water retention capabilities. HPMC, MC or EHEC are used in most cement-based or gypsum construction, such as masonry mortar, cement mortar, cement coating, gypsum, cementitious mixture and emulsion putty, etc., which can enhance the dispersion of cement or sand and greatly improve the adhesion , which is very important for plaster, tile cement and putty. For cement, HEC is not only a retarder, but also a water-retaining agent. HEHPC also has this purpose. Cellulose ethers are often used in combination with gluconates in mortars as valuable retarder additives. MC or HEC and CMC are often used as the solid part of wallpaper. Medium or high viscosity cellulose ethers are commonly used in wallpaper adhesives and building materials.
Hydroxypropyl methylcellulose HPMC product combines many physical and chemical properties to become a unique product with multiple uses. The various properties are as follows:
(1) Water retention: It can retain moisture on porous surfaces such as wall cement boards and bricks.
(2) Film-forming properties: It can form a transparent, tough, soft film with excellent oil resistance.
(3) Organic solubility: This product is soluble in some organic solvents, such as ethanol/water, propanol/water, dichloroethane and a solvent system composed of two organic solvents in appropriate proportions.
(4) Thermal gelation: When the aqueous solution of this product is heated, it forms a gel and turns into a solution after cooling.
(5) Surface activity: Provide surface activity in the solution to achieve ideal colloidal emulsification and protection, as well as phase stabilization.
(6) Suspension agent: Hydroxypropyl methylcellulose can prevent solid particles from settling, thereby inhibiting the formation of precipitates.
(7) Protective colloid: It can prevent droplets and particles from coalescing or condensing.
(8) Adhesion: Used as a binder for pigments, tobacco products, and paper products, it has excellent functions.
(9) Water solubility: This product can be dissolved in water in different proportions, and its maximum concentration is only limited by viscosity.
(10) Nonionic inertness: This product is nonionic cellulose ether and does not combine with metal salts or other ions to form insoluble precipitates.
(11) Acid-base stability: suitable for use within the pH range of 3.0-11.0.
(12) Tasteless and odorless, not affected by metabolism; used as additives in food and medicine, they are not metabolized in food and do not provide calories.
Therefore, hydroxypropyl methylcellulose HPMC occupies an important position in the construction industry, and green cellulose will be widely used in the construction industry. High quality, preferential prices and better services are what our cellulose and latex powder manufacturers have always pursued. Future Day adheres to the business philosophy of “survival by quality, development by science and technology, market by reputation, and efficiency by management”. Our hydroxypropyl methylcellulose, redispersible latex powder, and hydroxyethyl cellulose provide high-quality products to more customers.
Post time: Feb-02-2024