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By Cathy | 12 January 2023 | 0 Comments

Why hydroxypropyl methyl fibre is a non-ionic cellulose mixed ether

What is hydroxypropyl methyl fibre?
Hydroxypropyl methylcellulose is simplified into hydroxypropyl methylcellulose, which belongs to a kind of non-ionic cellulose mixed ether. It is a semi-synthetic, inert, and viscoelastic polymer commonly used as a lubricant in ophthalmology or as an adjuvant or excipient in oral medicine. It is commonly used in various kinds of commodities. The appearance of this drug is a white powder; the dissolution method of drugs is mainly to add drugs into warm water for dissolution, mainly used in some pharmaceuticals, chemical raw materials and petrochemical industries. In addition, it can also be used in ceramic manufacturing, plastics and some pharmaceutical materials, such as coating materials, membrane materials, and speed control polymer materials of slow-release preparations, which have the role of stabilizer and tablet adhesive.
Use of hydroxypropyl methyl fibre
Construction industry: As a cement mortar's water retaining agent, the retarder makes the mortar pumpable. As the adhesive for plastering mortar, gypsum, putty powder or other building materials can improve the coating performance and prolong the operation time. It can also be used for pasting ceramic tiles, marble, plastic decoration, and pasting reinforcers, reducing cement consumption. The water-retaining property of HPMC makes the slurry not crack due to too fast drying after coating. Ceramic manufacturing industry: widely used as an adhesive to manufacture ceramic products. Plastic: used as forming release agent, softener, Lubricant, etc. PVC: used as a dispersant in PVC production, is the main auxiliary for suspension polymerization to prepare PVC. Others: This product is also widely used in leather, paper products, fruit and vegetable preservation, the textile industry, etc. Pharmaceutical industry: coating materials; Membrane material; Controlled speed polymer material of sustained-release preparation; Stabilizer; Suspension aids; Tablet adhesive; Tackifier.
Chemical Properties of Hydroxypropylmethyl Fibre
Soluble in water, most polar c and an appropriate proportion of ethanol/water, propanol/water, dichloroethane, etc., insoluble in ether, acetone, anhydrous ethanol, swelling in cold water into a clear or slightly turbid colloidal solution. The aqueous solution has surface activity, high transparency, and stable performance. Hydroxypropyl methylcellulose HPMC has the property of thermal gel. Different specifications of products have different gel temperatures. Solubility varies with viscosity.

The properties of HPMCs with different specifications of HPMC are somewhat different, and the dissolution of HPMC in water is not
affected by the PH value. Granularity: 100 mesh passing rate is more than 98.5%. Density: 0.25-0.70g/(usually about 0.4g/), specific gravity 1.26-1.31. Colour change temperature: 180-200 , carbonization temperature: 280-300 . The methoxy value is 19.0-30.0%, and the hydroxypropyl value is 4%~12%. The viscosity (22 , 2%) is 5~200000mPa. s. The gel temperature (0.2%) is 50~90 . HPMC has the characteristics of thickening ability, salt removal, PH stability, water retention, dimensional stability, excellent film-forming performance, and extensive enzyme resistance, dispersibility and cohesiveness.
Price of hydroxypropyl methyl fibre
Hydroxypropyl methyl fibre particle size and purity will affect the product's price, and the purchase volume can also affect the cost of hydroxypropyl methyl fibre. A large amount of large amount will be lower. The price of hydroxypropyl methyl fibre can be found on our company's official website.
Hydroxypropyl methyl fibresupplier
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 methyl fibre, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective hydroxypropyl methyl fibre, you are welcome to contact us or inquire any time.

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