Crodamide™ Slip & Anti-block

2012 customer presentation

Contents

• Introduction

• What are Crodamide™ slip & anti-block additives?

• How do Crodamide™ additives work?

• The Crodamide™ range

• Applications and performance data

• Further information

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

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

How do Crodamide™ additives work?

The Crodamide™ range

Product Name Chemical description Physical form at 25℃ Raw material origin Primary effect

Crodamide ER Erucamide Pastille / beadMicrobead / 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

Effect of Crodamide™ additives on friction

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)

High slip in LDPE

High slip in PP

Medium slip in LDPE

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

Anti-blocking in LDPE

Anti-blocking in coPP

Further information

You can find all the information from this presentation in our new brochure available at Croda Direct

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