- Materials
- Forms
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
Academia Aerospace & Aeronautical Automotive Chemical Manufacturing Electronics and Bioelectronics Fuel Cells & Hydrogen Life Science and Biomaterials Storage & Batteries Vacuum Technology Mining and Metals Nanomaterials Nuclear Oil & Gas Optics Packaging Research & Labs Space Technology Medical Devices
-
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
Toggle Nav
Formula: CA
Form: Disk
Material: Cellulose acetate (CA)
CAS Number: 9004-35-7
Commodity: Polymers
Cellulose Acetate disks are a versatile product available in 119 variations that cover a wide range of diameters, thicknesses and tolerances. It is made from cellulose acetate which is a thermoplastic polymer derived from cellulose that exhibits high strength, toughness and optical clarity. Its durability, low cost and ease of fabrication make it ideal for applications ranging from scientific equipment to consumer goods. These disks can be machined, bonded or thermoformed for use as washers, spacers, lenses, windows, and other precision components across industrial, optical, and medical settings. With such a large range of options, Goodfellow's Cellulose Acetate disks enable you to select the optimal configuration for your specific application.
Tolerances
Disk
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Poor |
| Acids - dilute | Good-Poor |
| Alcohols | Fair-Poor |
| Alkalis | Poor |
| Aromatic hydrocarbons | Good-Poor |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Poor |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | ~5 |
| Dissipation factor @ 1kHz | 0.06 |
| Dielectric strength( kV mm⁻¹ ) | 11 |
| Volume resistivity( Ohmcm ) | 5 x 10¹² |
Physical Properties
| Element | Value |
|---|---|
| Flammability | HB |
| Radiation resistance | Fair |
| Refractive index | 1.49 |
| Resistance to Ultra-violet | Fair |
| Limiting oxygen index( % ) | 19 |
| Water absorption - over 24 hours( % ) | 1.9-7 |
| Density( gcm⁻³ ) | 1.3 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | 34-125 |
| Tensile modulus( GPa ) | 01-Apr |
| Izod impact strength( J m⁻¹ ) | 100-450 |
| Abrasive resistance - ASTM D1044( mg/1000 cycles ) | 65 |
| Tensile strength( MPa ) | 12-110 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 52-105 |
| Heat-deflection temperature - 1.8MPa( C ) | 48-86 |
| Lower working temperature( C ) | -20 |
| Upper working temperature( C ) | 55-95 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1200-1900 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.16-0.36@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 80-180 |
Other Customers Purchased
-
PHB/PHV 1% Powder
Formula: Biopolymer
Maximum Particle Size: 300µm
Weight: 500g
Category: Green Production
Molecular Weight: 490k g/mol
CAS Number: 29435-48-1
UOM Code: 008-640-42eachStarting at $199.18
Discounts applied for volume purchases -
Grafix Cellulose Acetate Film Grade: Grafix
Formula: CA
Thickness: 0.0762mm
Length 1: 25mm
Length 2: 25mm
Category: Green Production
Type: Biodegradable
Colour: Clear
CAS Number: 9004-35-7
UOM Code: 162-133-32
eachStarting at $141.55
Discounts applied for volume purchases -
PHB Film Formula: PHB
Thickness: 2mm
Length 1: 100mm
Length 2: 100mm
Category: Green Production
Production Method: Compression Moulded
Colour: Natural
CAS Number: 29435-48-1
UOM Code: 698-776-37
eachStarting at $203.22
Discounts applied for volume purchases -
PHB/PHV 8% Film Formula: PHB92/PHV 8
Thickness: 0.01mm
Length 1: 200mm
Length 2: 200mm
Category: Green Production
Type: Biodegradable
CAS Number: 29435-48-1
UOM Code: 001-621-44
eachStarting at $200.20
Discounts applied for volume purchases -
Polylactic Acid Biopolymer Film Formula: PLA
Thickness: 0.05mm
Length 1: 100mm
Length 2: 100mm
Category: Green Production
Structure: Amorphous
Type: Biodegradable
Transparency: Transparent
CAS Number: 26023-30-3
UOM Code: 915-888-22
eachStarting at $141.34
Discounts applied for volume purchases -
Cellulose Acetate Film Formula: CA
Thickness: 0.1mm
Length 1: 10mm
Length 2: 10mm
Category: Green Production
Type: Biodegradable
Colour: Clear
CAS Number: 9004-35-7
UOM Code: 327-805-46
eachStarting at $188.27
Discounts applied for volume purchases
