Hydroxypropyl Methylcellulose (HPMC)

  • Product Name: Hydroxypropyl Methylcellulose
  • Appearance: White powder
  • PH Value: 7.0~8.0
  • Fineness(mesh): 80-100
  • Viscosity(mpa.s): 5-200000
  • CAS No.: 9004-65-3
  • HS Code: 3912900000

Hydroxypropyl Methylcellulose (HPMC) is an odorless, non-toxic white powder. After fully dissolved in water, it will form a transparent viscous solution. It is a non-ionic cellulose ether made from natural polymer materials through a series of chemical processing. It has the characteristics of thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gelation, surface activity, retention of moisture and protection of colloids.

  • Water solubility and thickening ability: it can soluble in cold water, and form a transparent viscous solution.
  • Dissolution in organic solvents: Because it contains a certain amount of hydrophobic methoxy groups, this product can be dissolved in some organic solvents.
  • PH value stability: The viscosity of HPMC’s aqueous solution is relatively stable in the range of PH value 3.0-11.0.
  • Surface activity: HPMC aqueous solution has surface activity. It has emulsifying effect, protecting colloid ability and relative stability.
  • Thermal gelation: When heated above a certain temperature, the aqueous solution of HPMC can become opaque, generate precipitation, and lose viscosity. However, it gradually changed to the original solution state after cooling.
  • Low ash content: HPMC is non-ionic, it can be washed with hot water during the preparation process and effectively refined, so its ash content is very low.
  • Salt resistance: Since this product is a non-ionic and non-polymeric electrolyte, it is relatively stable in aqueous solutions of metal salts or organic electrolytes.
  • Water retention effect: Because HPMC is hydrophilic and its aqueous solution is highly viscous. It can be added to mortar, gypsum, paint, etc. to maintain high water retention in the product.
  • Mildew resistance: It has relatively good mildew resistance, and has good viscosity stability during long-term storage.
  • Lubricity: Adding HPMC can reduce friction coefficient and improve the lubricity of extruded ceramic products and cement products.
  • Film-forming property: It can produce strong, flexible, transparent flakes with good oil and ester resistance.
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