CAB 171-15 Application/Uses
Coatings
Coatings for Automotive Plastics
Coatings for cloth
Coatings for leather
Coatings for paper/paperboard
Coatings for plastic
Coatings for wood
Truck/Bus/Commercial Vehicles
CAB 171-15 Product Description
Remarkable polymers with a renewable backbone provided by nature itself. 仁捷塑胶有料有限公司是美国伊士曼CAB代理商之一，CAB销售热线：18681139818 联系人：唐生 QQ:13931677。
When cellulose is esterified with both acetyl and butyryl radicals to form the mixed ester, cellulose acetate butyrate, many of the desirable properties of both esters are obtained. CAB 171-15 has the lowest butyryl content in the series of Eastman™ Cellulose Acetate Butyrates. It is supplied in dry, powder form and is offered as a filtered product. Films prepared from CAB 171-15 offer superior toughness and hardness as compared with films prepared from other mixed esters. Also coatings based on CAB 171-15, which has less solubility and compatibility than the higher butyryl CABs, usually offer excellent resistance to chemicals, oils, and greases. CAB 171-15 exhibits the lowest degree of solubility of the Eastman™ cellulose ester family. It is soluble in low molecular weight ketones, chlorinated hydrocarbons, and nitroparaffins. Eastman™ cellulose esters are based on up to sixty percent cellulose, one of the most abundant natural renewable resources.
CAB 171-15 Typical Properties
| Property | Typical Value, Units | |||
| Butyryl Content | 17 wt % | |||
| Hydroxyl Content | 1.5% | |||
| Viscosity a | 57.37 poise | |||
| Color b | 225 ppm | |||
| Haze b | 55 ppm | |||
| Fiber | 325 | |||
| Acidity as Acetic Acid | 0.0325 wt % | |||
| Ash Content | 0.05% | |||
| Refractive Index | 1.475 | |||
| Melting Point | 230-240°C | |||
| Specific Gravity | 1.26 | |||
| Wt/Vol | 1.26 kg/L (10.5 lb/gal) | |||
| Bulk Density | ||||
|
224 kg/m3 (14 lb/ft3 ) | |||
|
256 kg/m3 (16 lb/ft3 ) | |||
| Dielectric Strength | 784-984 kv/cm (2-2.5 kv/mil) | |||
| Glass Transition Temperature (Tg) | 161°C | |||
| Tukon Hardness | 27 Knoops | |||
| Acetyl Content | 29.5 wt % | |||
| 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. |
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