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In the field of building materials, Hydroxypropyl Methyl Cellulose (HPMC ) is being regarded as a revolutionary product. Its multifunctional properties not only improve construction efficiency, but also greatly improve the performance of building materials. This renewable polymer brings a host of advantages to the construction industry, making it an emerging favorite.
HPMC, or Hydroxypropyl Methylcellulose, is a versatile chemical compound that is widely used in the construction industry. It is a type of cellulose ether that is derived from natural cellulose and is a water-soluble polymer. HPMC is used in various applications in the construction industry, including:
HPMC is a non-ionic cellulose ether polymer, which has different chemical properties according to the degree of substitution of the substituent groups and the degree of modification. It is a non-ionic, odorless, odorless white fiber Pure ether powder.
Gypsum mortar is a building material with gypsum as the main component. Gypsum accounts for 70% to 80% of the total weight of the mortar. Other components include lime, silicate, etc. The following is a summary of the effects of several mortar additives on gypsum mortar.
(1) Whiteness: Although whiteness cannot determine whether HPMC is easy to use, and if whitening agent is added in the production process, its quality will be affected. However, most good products have good whiteness.
Hydroxypropyl methyl cellulose plays three roles in the putty powder: thickening, water retention and construction.
Hpmc as a water-retaining agent and retarder for cement mortar, it makes the mortar pumpable. In plastering slurry, gypsum, putty powder or other building materials, it is used as a binder to improve spreadability and prolong operation time.
The viscosity of HPMC is inversely proportional to the temperature, that is, the viscosity increases with the decrease of temperature. The viscosity of a product usually refers to the test result of its 2% aqueous solution at 20 ℃.
HPMC with uniform reaction, methoxy and hydroxypropyl groups are uniformly distributed, and the water retention rate is high.
Hydroxypropyl methyl fiber (HPMC) is a water soluble polymer, which is commonly used to prepare capsules, tablets, cream, etc. in medicine, food and cosmetics. The following are some dissolution methods for hydroxypropyl methyl fibers:
Standing at the end of the year, we look back at the past, and there are too many moving and stories in the past. Standing at the beginning of the year, we look forward to the future and have more expectations and dreams in the future.