Hydroxy Propyl Methyl Cellulose (HPMC)
The properties, preparation methods, uses, and application of hydroxypropyl methylcellulose
Hydroxy Propyl Methyl Cellulose
CAS: 9004-65-3
Chemical formula: C3H7O*
Hydroxypropyl methylcellulose (HPMC) is a semi synthetic compound obtained from cellulose as raw material after chemical treatment. It is a non-toxic, odorless, colorless, and non hygroscopic powdered substance. HPMC has a variety of unique chemical and physical properties, making it widely used in many fields.
1、 Definition:
Hydroxypropylmethylcellulose is synthesized through methylation and hydroxypropylation reactions, and it is an inorganic non-ionic polymer compound. The hydroxypropyl and methyl groups in this compound can regulate its hydrolysis rate and thermal stability. In terms of chemical structure, HPMC has multiple different molecular weights and viscosity grades, which can be adjusted according to different application fields.
2、 Nature:
Has multiple unique chemical and physical properties. Firstly, it is a non-toxic, odorless, and colorless powdered substance that is not easily hygroscopic and can be stored for a long time at room temperature. Secondly, HPMC has good solubility and can dissolve well in water and some organic solvents, forming a transparent solution. Meanwhile, the viscosity, hydrolysis rate, and temperature stability of HPMC can be adjusted through different synthesis methods and treatment processes. Finally, HPMC also has good film-forming and adhesive properties, and is widely used in multiple application fields.
3、 Application:
Construction industry: In the construction industry, HPMC is widely used in fields such as cement mortar, gypsum products, and wall coatings. Due to its excellent adhesion and film-forming properties, it can be used as a thickener, adhesive, and moisturizer to improve the bonding strength and durability of materials.
Food industry: HPMC can be used as a stabilizer, thickener, and emulsifier in the food industry. It can improve the quality and taste of food, as well as increase the consistency and viscosity of food. It is widely used in fields such as ice cream, sauces, and candies.
Pharmaceutical industry: HPMC can be used as a tablet coating agent, capsule filling agent, and stabilizer. Due to its non-toxic, odorless, and non irritating properties
The characteristics of being irritating and easily soluble in water can improve the stability and bioavailability of drugs, improve the taste and user experience of drugs.
Personal care product industry: In the personal care product industry, HPMC can be used as a stabilizer, thickener, and emulsifier. It can increase consistency and viscosity, improve texture and experience in cosmetics, shampoo, moisturizers and other products.
Textile printing and dyeing industry: In the textile printing and dyeing industry, HPMC can be used as an adhesive, dye additive, and printing paste. It can improve the permeability of dyes and the quality of printing and dyeing, while also improving the softness and texture of fabrics.
Petrochemical industry: In the petrochemical industry, HPMC can be used as a lubricant, anti-static agent, stabilizer, etc. It can improve the fluidity and viscosity of oil products, while reducing the harm caused by static electricity.
Paper Products Industry: In the paper products industry, HPMC can be used as an adhesive and coating agent. It can improve the strength and water resistance of paper.