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Technical Data Sheet


Applications
  • HTF - pharmaceutical processing
  • Auto plastics
  • Auto refinish
  • Shrink film non food contact

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. When CA-398-30 is dissolved in appropriate solvents a clear, colorless solution is produced. 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.

Eastman CA-398-30 is based on cellulose, one of the most abundant natural renewable resources.The calculated approximate bio-content value of 55% for Eastman CA-398-30 was determined by using six bio-based carbon atoms per anhyroglucose unit divided by the total number of carbons per anhyroglucose unit. Although the value reported is not specifically measured for bio-carbon, it can be estimated based on typical partition data.



Typical Properties

PropertyTypical Value, Units
General
Viscositya 
     s30
     Poise114
Acetyl Content39.7 wt %
Hydroxyl Content3.5 wt %
Moisture Content3.0 max %
Tgb189 °C
Bulk Density 
     Poured320 kg/m3 (20 lb/ft3)
     Tapped432 kg/m3 (27 lb/ft3)
Specific Gravity1.31
Acidity 
     as Acetic Acid0.2 wt % max.
Ash Content<0.05 %
Tukon Hardness26 Knoops
Refractive Index1.475
Dielectric Strength669 kv/cm (1.7 kv/mil)
Combined Acetic Acid Content55.5 %

aViscosity 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).
bGlass Transition Temperature



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.

8/24/2023 4:53:30 PM