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Formula: CAB
Form: Tube
Material: Cellulose acetate butyrate (CAB)
CAS Number: 9004-36-8
Commodity: Polymers
Wall Thickness:
0.75mm
Inside Diameter:
1.5mm
Outside Diameter:
3mm
Cellulose Acetate Butyrate Tubes are part of Goodfellow's range of tubular products. The range includes 8 variations of this thermoplastic polymer tube. Cellulose Acetate Butyrate offers properties such as high impact strength, rigidity, and good electrical insulation. The tubes are commonly used for scientific instrumentation as well as industrial and medical applications that require a rigid, transparent tube with good chemical resistance and electrical insulation. With 8 size options, Goodfellow's Cellulose Acetate Butyrate Tubes provide flexibility for diverse tubing needs across research and industry.
Tolerances
Tube
| Outside Diameter | =<2mm | ±10% |
|---|---|---|
| Outside Diameter | =<5mm | ±10% |
| Outside Diameter | >5mm | ±10% |
| Wall Thickness | ±20% |
Material Properties for Polymers
Physical Properties
| Element | Value |
|---|---|
| Abbe number | 80-84 |
| Flammability | HB |
| Radiation resistance | Fair |
| Refractive index | 1.478 |
| Resistance to Ultra-violet | Good |
| Limiting oxygen index( % ) | 17 |
| Water absorption - over 24 hours( % ) | 0.9-2.2 |
| Density( gcm⁻³ ) | 1.2 |
Chemical Resistance
| Element | Value |
|---|---|
| Acids - dilute | Fair-Poor |
| Alcohols | Poor |
| Alkalis | Fair-Poor |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good-Poor |
| Halogenated Hydrocarbons | Poor |
| Halogens | Poor |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.5-6.2 |
| Dissipation factor @ 1kHz | 0.04 |
| Dielectric strength( kV mm⁻¹ ) | 10 |
| Volume resistivity( Ohmcm ) | 10¹¹-10¹⁵ |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | 99 |
| Elongation at break( % ) | 60 |
| Tensile modulus( GPa ) | 0.3-2 |
| Izod impact strength( J m⁻¹ ) | 260 |
| Tensile strength( MPa ) | 20-60 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 73 |
| Heat-deflection temperature - 1.8MPa( C ) | 62 |
| Lower working temperature( C ) | <-40 |
| Upper working temperature( C ) | 60-100 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.16-0.32@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 140 |
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