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Eastman™ Cellulose Acetate (CA-398-30)
Application/Uses
- Pressure sensitive tape
- Sealants
Product Description
Eastman™ Cellulose Acetate CA-398-30 is a high-viscosity, high molecular weight cellulose acetate supplied as fine, dry, free-flowing powder. The powder is free from coarse particles and excessive fines. Its relatively uniform particle size permits good plasticizer distribution during blending. Cellulose acetate CA-398-30 offers good physical properties for molded and extruded articles. It may be compounded into plastic using extrusion equipment or heated rolls.
Typical Properties
Property | Typical Value, Units |
---|---|
Acetyl Content | 39.8% |
Combined Acetic Acid Content | 55.5% |
Hydroxyl Content | 3.5 wt % |
Acidityas Acetic Acid | 0.2 wt % max. |
Viscosity *a | 114 poise |
Moisture Content | 3 wt % |
Ash Content | <0.05% |
Specific Gravity(wt/vol) | 1.31 kg/L (10.9 lb/gal) |
Bulk Density Tapped Poured | 432 kg/m3(27 lb/ft3) 320 kg/m3(20 lb/ft3) |
Melting Point | 230-250°C |
Glass Transition Temperature (Tg) | 189°C |
Tukon Hardness | 26 Knoops |
Haze *b | 40 ppm |
Color *b | 290 ppm |
Heat Test Color | 4 max. |
Plastic Test Color | 12.5 |
Refractive Index | 1.475 |
Dielectric Strength | 669 kv/cm (1.7 kv/mil) |
*a Viscosity determined by ASTM Method D 1343. Results converted to poises (ASTM Method D 1343) using the solution density for Formula A as stated in ASTM Method D 817 (20% Cellulose ester, 72% acetone, 8% ethyl alcohol).
*b Determination of color and haze is made on CAB solutions using Pt-Co standards for color and a monodisperse latex suspension for haze. Analysis is performed with a Gardner Model XL-835 colorimeter.
Comments
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.
Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.