What Are Binding Agents?

Functional polymers used as binders, harmonisers and strength enhancers in blends of different polymers and non-polymer materials such as fillers, flame retardants, reinforcements, etc. Added into the polymer.

Optim® P-408

Polypropylene grafted with anhydride functionality. Used as fillers in PP compounds and as a coupling agent for reinforcement. Offers improved interfacial adhesion between filler and polymer matrix. Provides smoother surface finish in extruded products.

Product Type

Adhesion Promoters / Compatibilisers > Coupling Agents / Compatibilisers > Polymerics

Physical Form

Miscellaneous

Applications/ Recommended for

  • PP
  • Injection moulding - thermoplastics
  • Applications
  • Chemical coupling agent for fillers such as mica talc, calcium carbonate, wood flour in PP compounds.
  • Coupling agent for glass fibres in PP compounds.
  • Compatibilisers for blends such as ïPP/PA and PP/EVOH.

Optim® P-408 Properties

Property

  • Value and Unit
  • Test Status
  • Test Method

Density

  • 0.91 g/ml
  • MFI @ 190°C, 2.16 Kg
  • 40
  • Tm (DSC)
  • 163 °C
  • Storage and Handling Procedures
  • OPTIM® P-408 is slightly hygroscopic and should be stored in a dry and cool area. It is recommended that
  • Before processing, the required amount of material to be used must be dried in a chamber dryer or oven at the following temperature
  • 80-95 °C for approx. 2 hours for best results. Loss of anhydride functionality may occur due to
  • It can react with atmospheric humidity to acid groups.

Processing Conditions

A slight pungent odour is normal during the processing of OPTIM® P-408. During processing, the compound. Parameters that can lead to optimised performance include extruder type, screw design, barrel temperature, screw speed, throughput, dwell time and material feed sequence. Maximum machining temperature generally should not exceed 280 °C.

Packaging

OPTIM® speciality polymers supplied in 25 Kg (55 lbs) PE lined, HD woven sack laminated pre-dried form paper bags and 750 Kg (1650 lbs) FIBCs. Depending on customer's requirement, bags can be more palletised for shipment. Store in a cool and dry place.

The information provided here is a guide to determine the suitability of our products for the specified applications. It is based on trials performed by our products.

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