Cellulose acetate butyrate

Cellulose acetate butyrate

Simplified representation of cellulose acetate butyrate with acetyl (blue) and butyryl (green) groups highlighted. The distribution of these ester groups can vary within the polymer chain.
Identifiers
CAS Number
  • 9004-36-8
ECHA InfoCard 100.130.734 Edit this at Wikidata
CompTox Dashboard (EPA)
  • DTXSID60894649 Edit this at Wikidata
Properties
Appearance White solid[1]
Odor Odorless[1]
Melting point 127–205 °C (261–401 °F; 400–478 K)[1]
Solubility in water
 Negligible[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound

Cellulose acetate butyrate (CAB) is a mixed ester thermoplastic derivative of cellulose acetate that contains both acetate and butyrate functional groups. It has improved weathering resistance and lower moisture absorption compared to cellulose acetate. The exact properties of a CAB compound is determined by the composition of butyrate vs acetate functional groups.[2]

CAB is commonly used as a binder or additive in coatings.[3]

References

  1. ^ a b c d "Safety Data Sheet". fishersci.se.
  2. ^ "Cellulose Acetate Butyrate, Eastman - ChemPoint". www.chempoint.com. Retrieved 2021-05-02.
  3. ^ "CAB". polymerdatabase.com. Retrieved 2021-05-02.
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