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Lubrizol
Solplus™ polymeric dispersants, also known as hyperdispersants, are polymeric materials designed to offer significantly higher levels of performance for thermoplastics, thermosets and liquid colorants.

Polymeric dispersants for Plastics: Higher Quality and Productivity

In comparison with standard dispersant solutions such as stearate and waxes, Solplus™ hyperdispersants, also known as polymeric dispersants, offer unique advantages and performance for thermoplastics, thermosets and liquid colorants due to their specific structure and characteristics.

Solplus™ hyperdispersants are polymeric materials with high molecular weight that can contain multiple anchoring groups and stabilization chains. This polymeric structure has a strong influence on the dispersion process with superior particle dispersion and stabilization.

The below properties lead to unique benefits for both polymer formulators and end-product manufacturers including:
HIGH PRODUCTIVITY IMPROVED QUALITY
  • Reduced dispersion time
  • Lower energy costs
  • Reduced viscosity to allow higher pigment/filler loading
  • Reduced filter blocking
  • Easier processing
 
  • Better flocculation resistance
  • Improved viscosity stability
  • Speck reduction
  • High color strength
  • High gloss
  • Better transparency
  • Greater opacity
  • Improved mechanical properties

To illustrate the above statements, the below figures show the superior performance of Solplus™ hyperdispersants:
Formulation:
60% LDPE + 40% Red
Formulation:
58% LDPE + 40% Red + 2% Solplus™ DP310 (AOWP = 5)
Optimum Processing
Condition Shifted
Feeding rate = 80
Screw speed = 200 rpm
Feeding rate = 250
Screw speed = 400 rpm
Output 0.72kg/hr 2.0kg/hr (2.8 times or 280% faster!)
Colour strength CIE a = 43.89 CIE a = 48.97
Pellet Appearance Formulation image Formulation image
Figure 1: Formulations based on LDPE - with and without Solplus™ DP 310

The formulation with Solplus™ DP310 shows a significant increase in productivity with output that is 2.8 times or 280% faster versus the formulation without Solplus™ hyperdispersants.
High productivity & improved processing conditions
Improved quality - better pellet appearance, high color strength

Find out more about Solplus™ DP 310. Access the Technical Data Sheet.

Figure 2: Parts with and without a Solplus™ hyperdispersant in the formulation.

Molded parts that contain Solplus™ hyperdispersants result in brighter, stronger parts with less defects due to better dispersion.
Less defects with Solplus™ hyperdispersants

Filter blocking in LLDPE Masterbatch
Production - Pigment Green 7
Filter blocking during LLDPE Masterbatch production
Figure 3: Filter blocking during LLDPE Masterbatch production

Solplus™ hyperdispersants provide better dispersion that results in less filter blocking, improved throughput, and lower processing viscosity.
Reduce filter blocking with Solplus™ DP 320

Read more about Solplus™ DP 320. Download the Technical Data Sheet.

Discover more about Solplus™ hyperdispersants quality and productivity improvements for thermoplastics, liquid colorants & dispersions, and thermosets in the application pages.

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Case Studies from Polymeric dispersants for Plastics

Gain stability in multiple reactive thermoset systems and improve dispersion of a broad range of pigments with one unique dispersant

Solplus D610 offers a combination of good dispersion of a broad range of pigments with stability in multiple reactive thermoset systems including epoxy, polyamide, polyurethane, unsaturated polyester gelcoats, and others.  

See comparative performance data vs benchmark solutions in this case study.


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PP/Calcium Carbonate Masterbatch: Increase loading up to 85% and improve dispersion with Solplus™ DP310 hyperdispersant

Calcium carbonate masterbatch concentrates can typically achieve 75% loading with existing wax technologies. Now they can obtain higher filler loadings up to 85% with Solplus™ DP310 hyperdispersant. Its excellent dispersing capabilities helps improve manufacturing efficiencies and provide high quality PP masterbatch.

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Improve processability of highly loaded Nylon 6 masterbatch dispersions with Solplus™ DP320 hyperdispersant

Solplus™ DP320 hyperdispersant is a preferred option to meet the requirements for processing efficiency of nylon masterbatch compounds and to deliver good aesthetics.

It offers:

  • Improved processability resulting in an increase of overall throughput and a decrease in costs due to: lower filter pressure, reduced extruder torque, effective dispersion
  • Increased color strength at low and high filler loading

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Downloads from Polymeric dispersants for Plastics

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