Hydroxypropyl methylcellulose (HPMC) characteristics

The product combines many physical and chemical properties to become a unique product with multiple uses, and the various properties are as follows:

(1) Water retention: It can hold water on porous surfaces such as wall cement boards and bricks.

(2) Film formation: It can form a transparent, tough and soft film with excellent oil resistance.

(3) Organic solubility: The product is soluble in some organic solvents, such as ethanol/water, propanol/water, dichloroethane, and a solvent system composed of two organic solvents.

(4) Thermal gelation: When the aqueous solution of the product is heated, it will form a gel, and the formed gel will become a solution again after cooling.

(5) Surface activity: Provide surface activity in the solution to achieve the required emulsification and protective colloid, as well as phase stabilization.

(6) Suspension: It can prevent the precipitation of solid particles, thus inhibiting the formation of sediment.

(7) Protective colloid: it can prevent droplets and particles from coalescing or coagulating.

(8) Adhesiveness: Used as an adhesive for pigments, tobacco products, and paper products, it has excellent performance.

(9) Water solubility: The product can be dissolved in water in different quantities, and its maximum concentration is only limited by viscosity.

(10) Non-ionic inertness: The product is a non-ionic cellulose ether, which does not combine with metal salts or other ions to form insoluble precipitates.

(11) Acid-base stability: suitable for use within the range of PH3.0-11.0.

(12) Tasteless and odorless, not affected by metabolism; used as food and drug additives, they will not be metabolized in food and will not provide calories.