SurfaceModified Polyethylene Particles: Performance Additives for Epoxy and Cast PU

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Surface-Modified Polyethylene Particles
Performance Additives for Epoxy and Cast PU

• Bernard D. Bauman
• Vice President
• Fluoro-Seal
• SPI ERF Meeting 11 March 2002
• Orlando, Florida

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Outline

• Who is Fluoro-Seal?
• History of the Technology
• Surface-Modification
• Use in Epoxies
• Use in Polyurethanes
• Conclusions

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Background / History

• Enhanced-Adhesion Chemistry
  Air Products Chemicals, Inc. (81 90)
• PRIMAX Business
  APCI (88 present)
• VISTAMER Products
  Composite Particles, Inc. (93 00)
• INHANCE Products -
  Fluoro-Seal (01- Future)

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Fluoro-Seal

• 20 Years in Business
• Leader in Fluorination of Plastic Bottles
• Recent Diversification
  Surface-Modification of Plastics
• INHANCE Product Line Performance
  Additives

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New Dimension in Material Engineering

• Surface-Modified Polymer Particles Fibers
• Combined with Various Polymer Systems
• Create New Composite Materials with Unique
  Properties
• Custom Tailor to Optimize Performance

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Concept

• epoxy polyamide rubber
• phenolic polyurethane polyester
• silicone polycarbonate latex polymers
• polyester polystyrene polyvinyl alcohol
• acrylics polysulfone urea formaldehyde
• acetal PVC polyolefins

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Properties Effected

• Abrasion Resistance
• Coef. of Friction
• Flexibility
• Impact Resistance
• Adhesion to Substrates
• Tear Resistance
• Impact Resistance
• Conductivity

• Tensile Strength
• Modulus
• Flammability
• UV Resistance
• Barrier Properties
• Density
• Cost
• Others

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Commercially Available

• UHMW PE
• HDPE
• TiC Polymer Alloys 18 µ to 500µ
• Rubber (SBR)
• HDPE Fibers
• Aramid Fiber

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Surface-Modification Chemistry
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Surface-Modification Chemistry
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Surface-Modification Chemistry
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Surface-Modification Chemistry
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Surface-Modification Chemistry
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Dispersion / Compatibility
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Non-Treated
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Treated
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Taber Abrasion Test
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Greater Lapshear Strength
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Abrasion ResistanceUHMW PE VS HDPE Particles

• Particles in Cast PU NBS Abrasion Results
• None 213
• 25 INHANCE UH-1700 783
• (35 µ UHMW PE)
• 25 INHANCE HD-1800 746
• (18µ HDPE)

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Adhesion to Substrate

• Additive Primed? Strength lb/in
• None No 8
• INHANCE UH-1250 No 14
• None Yes 18
• INHANCE UH-1250 Yes 24

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Greater Adhesion to Cured PU

• Improved Paint Adhesion to Cured PU
• Elimination of Primer Prior to Painting

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Products Made With INHANCE Polyethylene
Particles

• PU Automotive Paint
• Wear Resistant Epoxy Coatings
• PU Roll Covers
• PU Mining Screens
• Cast PU Tires
• Low Friction Nylon Gears
• Long-life nitrile O-rings
• Numerous others

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Oil Well Seals
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Processing Considerations

• Processable On All Meter/Mix Equipment
• Increases Viscosity
• Stoichiometry Not Effected

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Conclusions

• New Dimension in Material Engineering
• Ability to Custom Tailor Properties
• Facilitates Material Substitution