Klebepulver für Beton mit hohen Haftungseigenschaften und vielseitigen Anwendungen
MHEC plays a pivotal role in the pharmaceutical sector, serving as a critical excipient in various formulations. It acts as a binder in tablet manufacturing, a thickening agent in liquid dosage forms, and a stabilizer in suspensions. MHEC is also applied in controlled drug release systems, facilitating the sustained release of active pharmaceutical ingredients.
Thermal stability of HPMC and MHEC is affected by their gel temperature. In general, the gel temperature of HPMC is around 60℃-75℃ depending on its group content and different production technique. Due to the characteristics of MHEC group, it has a higher gel temperature, usually > 80℃. Therefore its stability under high temperature is better that HPMC. On the other hand, because there are more hydrophilic groups in the structure of MHEC, it has better hydrophilicity. The water retention rate of MHEC in mortar is a little higher than HPMC at the same dosage of products with the same viscosity.
Methyl hydroxyethyl cellulose uses to thickener in cosmetic products such as shampoos and conditioners because it can form a film on hair strands. This film makes hair appear smooth and shiny. In addition, the material coats the hair strands to protect them from water damage. Because it is water-soluble, methyl hydroxyethyl cellulose does not cause build-up on hair strands after repeated use of the product containing it.
Daily chemical grade instant hydroxypropyl methyl cellulose is usually used in daily chemical washing products, such as hand sanitizer, laundry detergent, car wash liquid, etc.
The properties of daily chemical grade hydroxypropyl cellulose A mainly include:
1. Water solubility and thickening property: it can be rapidly dissolved in cold water, without agglomeration, and can be dissolved in some organic solvents and the mixture of water and organic solvent. It can be dissolved in alcohol water solution and used to make disinfectant hand sanitizer.
2. Thickening and viscosity increasing performance: a small amount of solution will form a transparent viscous solution with high transparency. The transparency of 1% aqueous solution is more than 90%. The performance is relatively stable. The solubility changes with the viscosity. The lower the viscosity, the greater the solubility. It can effectively improve the flow stability of the system.
3. High thickening effect: the viscosity of 1% aqueous solution is 200000mps, which can achieve the same thickening effect with less addition.
4. It can be operated for a long time: Hydroxypropyl cellulose A is rapidly dissolved in aqueous solution, and thickens after about three minutes. The operation time is sufficient, and at the same time, problems such as agglomeration and uneven mixing are avoided.