Chemical synonym
Cellulose Acetate Butyrate
Product description
Remarkable polymers with a renewable backbone provided by nature itself.
Eastman™ CAB-381-2 is a cellulose ester with high butyryl content and high astm(a) viscosity.
Other than a higher viscosity and molecular weight, this cellulose ester shares the same general characteristics as CAB-381-0.1 and CAB-381-0.5. CAB-381-2 offers a combination of solubility and compatibility, moisture resistance, excellent surface hardness, and good film strength. It is supplied as a dry, free-flowing powder.
Eastman™ cellulose esters are based on up to sixty percent cellulose, one of the most abundant natural renewable resources.
Ace machinery & equipment
Adhesives/sealants-b&c
Aerospace coatings
Architectural coatings
Auto oem
Auto plastics
Auto refinish
Automotive parts & accessories
Automotive protective coatings
Coil coatings
Coil coatings-appliances
Commerical printing inks
Consumer electronics
Device housings
Electronic chemicals
Exterior architectural coatings
General industrial coatings
Graphic arts
Gravure printing inks
Industrial electronics
Industrial maintenance
Inkjet printing inks
Leather coatings
Metal coatings
Motorcycles
Other-transportation
Pack & carton coatings
Packaging inks food contact
Paints & coatings
Personal care ingredients
Process additives
Process solvents
Protective coatings
Safety glasses/shield
Small appliances non-food contact
Truck/bus/rv
Water treatment industrial
Wood coatings
| Property | Typical Value, Units |
| General | |
| Butyryl Content | 38 wt % |
| Acetyl Content | 13.5 wt % |
| Hydroxyl Content | 1.30% |
| Viscosityc | 7.6 poise |
| Colora | 125 ppm |
| Hazea | 35 ppm |
| Acidity as Acetic Acid | <0.03 wt % max. |
| Ash Content | 0.05% |
| Refractive Index | 1.475 |
| Heat Test @ 160°C for 8 hr | Tan melt |
| Melting Point | 171-184 °C |
| Specific Gravity | 1.2 |
| Wt/Vol (Cast Film) | 1.2 kg/L (10.0 lb/gal) |
| Bulk Density | |
| Poured | 352 kg/m3 (22 lb/ft3) |
| Tapped | 465 kg/m3 (29 lb/ft3) |
| Dielectric Strength | 787-984 kv/cm (2-2.5 kv/mil) |
| Glass Transition Temperature (Tg) | 133 °C |
| Molecular Weightb Mn | 40000 |
| Tukon Hardness | 18 Knoops |
a Determination of color and haze made on a solution of the cellulose ester dissolved in mibk using pt-co color standards and johns-manville celite (diatomaceous silica products) haze standards.
b Polystyrene equivalent number average molecular weight determined by gel permeation chromatography.
c 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).
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
English
Español
русский
tiếng việt
