Hydroxypropyl Methyl Cellulose By Shijiazhuang Shangdun Cellulose Co.., Ltd.

hydroxypropoxy content i wt%i : 4.0-32.0
Methoxyl contenti wt%i : 16.5.0-30.0
Fineness: 80 mesh-98%
PH Value: 5.0-8.5
Ash Contenti wt%i : a 5
Loss on dryingi wt%i : a 5
Viscosity i Brookfield RVT2%, 20a i : 100-80000mPa.s

Physical and Chemical Properties:
1. Carbonization temperature: 280-300 A C
2. Density: 370-380g/l
3. Surface tension: 2% aqueous solution is 42-56dyn/cm
4. Solubility: soluble in water and some solvents, such as ethanol/water, propanol/water, etc. in appropriate proportions.
5. No ionic charge: It is non-ionic, it does not combine with metallic salts and ionic organics to form insoluble precipitates.
6. Thermal gel property: Gel will be formed when the aqueous solution of cellulose is heated to a certain temperature, and a solution will be after cooling.
7. PH value stability: it has a wide range of pH values.
8. Water retention: It has excellent water retention properties, making the moisture not easy to lose or be absorbed too quickly by the substrate. Some special grades work well in high-temperature environments.
9. Thickening: its aqueous solution system has the thickening property, and the consistency is related to the viscosity of the product used and the type of compound.
10. Film formation: It can be made into a transparent, tough, soft film with excellent resistance to grease.
11. Suspension: It can prevent the precipitation of solid particles because the formation of the sediment can be inhibited.
12. Protective colloid: It can prevent small granules or particles from forming a mass.
13. Emulsification: The emulsion liquid can be stabilized by reducing the surface and interfacial tension and thickening the aqueous phase.
14. Anti-sagging: It can improve the thixotropy of the product so that the finished product does not slip even at considerate thickness.
15. Wetting ability: Cellulose has the property of wetting the substrate, no curling even if applied to a special substrate.
16. Open time: It can extend the hardening time of the product, make the raw materials fully hydrated, and improve the tensile strength and flexibility of the product.

Application of HPMC:
Binder
Ceramic
Building materials
Cosmetics
Leather
Latex coating
Paint stripper
Paper products
Plywood
Various resins and rubbers
Textiles