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By Lzh | 09 February 2023 | 0 Comments

Why is HPMC an inactive, viscoelastic polymer?

What is hydroxypropyl methyl cellulose?
First of all, hydroxypropyl methylcellulose is simplified to hydroxypropyl methylcellulose, which belongs to a variety of nonionic cellulose mixed ether. It is a semi-synthetic, inactive, viscoelastic polymer, commonly used as some lubricants in ophthalmology or as an adjunct or excipient in oral medicine, commonly used in various commodities. The appearance of this drug is a white powder; the dissolution method of drugs is mainly to add drugs to warm water for dissolution, which is mainly used in some medicine and chemical raw materials and some situations of the petrochemical industry. In addition, it can also be used in the manufacturing industry of ceramics. Some medicine materials, such as coating materials, membrane materials, and slow-release preparations of rate-control polymer materials, have the function of stabilizer and tablet adhesive.
Dissolution method of hydroxypropyl methylcellulose
1. All models can be added to materials by the dry mixing method
2. When it is necessary to directly add it to the normal temperature water solution, it is better to use the cold water dispersion type, and it can be thickened within 10-90 minutes after adding
3. Ordinary models can be dissolved after mixing and dispersing with hot water and cooling with cold water
4. If the phenomenon of caking and wrapping occurs during dissolution, it is due to insufficient mixing or the reason that ordinary models are directly added to cold water. At this time, it should be stirred quickly
5. If bubbles are generated during dissolution, they can be removed by standing for 2-12 hours (the consistency of the solution determines the specific time), vacuuming, pressurizing, and other methods, and an appropriate amount of defoamer can also be added.
Application of hydroxypropyl methylcellulose in the construction industry
1. Cement mortar: improve the dispersibility of cement-sand, greatly improve the plasticity and water retention of mortar, have an effect on preventing cracks, and enhances the strength of cement
2. Ceramic tile cement: improve the plasticity and water retention of pressed ceramic tile mortar, improve the adhesive strength of ceramic tile, and prevent pulverization
3. Coating of refractory materials such as asbestos: as a suspension stabilizer, a flow improver, and also to improve the bonding force to the substrate
4. Gypsum concrete slurry: improve water retention and workability, and improve adhesion to the substrate
5. Joint cement: added to the joint cement for gypsum board to improve the fluidity and water retention
6. Emulsion putty: improve the fluidity and water retention of resin latex-based putty
7. Plaster: as a paste to replace natural substances, it can improve water retention and improve the adhesive strength with the substrate
8. Paint: As a plasticizer of latex paint, it can improve the operation performance and fluidity of paint and putty powder
9. Spraying paint: It has a good effect on preventing the settlement of cement or latex spraying materials and fillers and improving the fluidity and spray pattern
10. Secondary products of cement and gypsum: used as extrusion molding binder of cement-asbestos series and other hydraulic substances to improve fluidity and obtain uniform molding products
11. Fiber wall: due to its anti-enzyme and anti-bacterial effect, it is effective as an adhesive for sand wall
12. Others: It can be used as a bubble retention agent for thin cement mortar and hydraulic mud operators.
Price of hydroxypropyl methyl cellulose
Hydroxypropyl methylcellulose particle size and purity will affect the product's price, and the purchase volume can also affect the cost of hydroxypropyl methylcellulose. A large amount of large amount will be lower. The price of hydroxypropyl methylcellulose can be found on our company's official website..
Hydroxypropyl methyl cellulose supplier
Luoyang Tongrun Nano Technology Co. Ltd.  (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including hydroxypropyl methylcellulose, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective hydroxypropyl methylcellulose, you are welcome to contact us or inquire at any time.

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