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Elium® resins for composites

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Elium® is the first liquid thermoplastic resin designed for manufacturing composite parts with mechanical properties similar to thermosetting. The major advantage of Elium® is it acts like a thermoplastic, which means it is uniquely designed for thermoforming, recycling and welding.

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Elium® resins properties

  • 30 to 50% lighter than the same parts made from steel with the same resistance
  • Perfect for complex design forms
  • Seamlessly blends with glass or carbon fibers
  • Compatible with conventionial thermosetting resin transformation technologies (Resin Transfer Moulding, Infusion, Flex-molding)
  • Exceptional  post-thermoforming (welding and gluing)

 

  • Styrene free compared to unsatured polyesters
  • Parts easily thermoformed and recycled with comparable mechanical performance for epoxy parts
  • Cost less to manufacture compared to other thermoplastic technologies:

- Conventional thermoset resin processes

- Transformation at room temperature
- No organo-sheets.

Recycling composite parts made of Elium® resin is possible!

In 2017 our R&D teams were heavily involved in developing the recycling process for composite parts made from the Elium® resin via depolymerization. The principle entails coarsely crushing the parts; the Elium®resin is then heat-depolymerized so that it can be recovered and purified into a resin with the same properties as the virgin resin. Meanwhile, the remaining carbon or glass fibers can be reused.

Being able to recycle parts made from Elium® resin is a tremendous asset, in particular for wind turbine manufacturers who currently use non-recyclable epoxy resins to manufacture the blades.

A new 25 m blade manufactured from Elium® resin

 

Arkema has been working successfully with the Effiwind consortium to manufacture a new 25 m wind turbine blade. The infusion process used has helped validate the feasibility of producing on an industrial scale a very large blade from a thermoplastic composite.

 

Developing expertise in a new manufacturing process for Elium® parts: pultrusion

In addition to the Fast RTM and Infusion processes, the Elium® resin is also suited to pultrusion. In partnership with the IRT M2P Technological Research Institute in Metz, Arkema has developed optimized grades for this specific process. Expertise in this manufacturing process opens up highly promising prospects in construction, with two target applications in particular:

Concrete reinforcement

 

Glassfiber-reinforced Elium® resin rods can replace:

 

 

  • Metal rods, with the advantage of being corrosion-proof ;
  • Thermoset composite rods, with the advantage of being able to be thermoformed into shape on site to consolidate complex structures such as stairs.

Window profiles

 

Currently, window profiles are made of:

  • aluminum (rigid and visually attractive but a poor insulator) ;
  • PVC (a good insulator but not rigid enough, which requires wide and unattractive profiles) ;
  • polyester (lightweight and a good insulator, but unattractive as the reinforcing fiber can be seen on the surface).

A profile made of Elium® by pultrusion combines the rigidity of aluminum, the insulating properties of PVC, and a smooth and glossy finish.

Geographic availability

Worldwide

Markets

  • Automotive and transportation
    • Automotive
    • Boat industry
    • Composite
    • Transportation
    • Yatching
  • Building and construction
    • Composites
  • Chemical and plastics industry
    • Composite
  • Consumer goods
    • Sports and leisure
  • General industry
    • Composites

Applications

  • Aerospace
  • Automotive
  • Cars
  • Composites
  • Electric vehicles
  • Ski
 
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