additive polymer presentation

1. Crodamide™ Slip & Anti-block
2012 customer presentation

2. Contents
• Introduction
• What are Crodamide™ slip & anti-block additives?
• How do Crodamide™ additives work?
• The Crodamide™ range
• Applications and performance data
• Further information

3. Introduction
• Polymer surfaces often exhibit high friction
• High friction can cause a number of difficulties in:
– Winding of film rolls
– Bag production
– Packaging operations
– Mold release
• Additives are required to reduce surface friction

4. What are Crodamide™ slip & anti-block
additives
• The Crodamide range includes a variety of slip & anti-block additives:
– Primary amides
– Secondary amides
– Secondary bis-amides
• They can be incorporated directly into the polymer during the extrusion proces
• Crodamides are migrating additives that move to the polymer surface on cooling
• Lower friction is achieved between contacting polymer surfaces from a solid
lubricating layer on the surface

5. How do Crodamide™ additives work?

6. Applications - slip
• This is the movement of a polymer surface against some other surface
• The interaction of surfaces can be polymer to polymer, polymer to metal or
polymer to glass
• High slip relates to a low friction value
Slip
(measured by CoF - Coefficient of Friction)

7. The Crodamide™ range
Product Name Chemical description Physical form at 25℃ Raw material origin Primary effect
Crodamide ER Erucamide Pastille / bead
Microbead / powder
Vegetable High slip
Crodamide OR Oleamide Pastille / microbead / powder Non-vegetable High slip
Crodamide ORX Oleamide Pastille / microbead Non-vegetable High slip
Crodamide VRX Oleamide Bead / powder Vegetable High slip
Crodamide 203 Oleyl palmitamide Bead Vegetable Medium slip
Crodamide 212 Stearyl erucamide Bead Vegetable Medium slip
Crodamide EBO Ethylene-bis-oleamide Bead Vegetable Medium slip / anti-block
Crodamide BR Behenamide Bead Vegetable Anti-block
Crodamide SR Stearamide Bead / powder Non-vegetable Anti-block
Crodamide SRV Stearamide Bead / powder Vegetable Anti-block
Crodamide EBS Ethylene-bis-stearamide Microbead / powder Non-vegetable Anti-block
Crodamide EBSV Ethylene-bis-stearamide Bead / powder Vegetable Anti-block

8. Effect of Crodamide™ additives on friction

9. Applications - slip
• This is the movement of a polymer surface against some other surface
• The interaction of surfaces can be polymer to polymer, polymer to metal or
polymer to glass
• High slip relates to a low friction value
Slip
(measured by CoF - Coefficient of Friction)

10. High slip in LDPE

11. High slip in PP

12. Medium slip in LDPE

13. Applications – anti-block
• Slip and blocking are related phenomena both involving the interaction of
surfaces
• Most Crodamides will modify the blocking performance in film to some extent
• Since Crodamides form layers at the surface, they generally do not affect the
clarity of film
Anti-blocking

14. Anti-blocking in LDPE

15. Anti-blocking in coPP

16. Further information
You can find all the information from this
presentation in our new brochure available
at Croda Direct
Log in to Croda Direct for premium
content such as:
• Samples
• Datasheets
• Technical information
• Literature
www.croda.com/PA