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Arkema at JEC 2015: Presents Range of Hot melt Adhesives and much more

Published on 2015-03-10. Author : SpecialChem

Composite solutions for lighter materials represent one of Arkema’s key research areas. The Group recently launched a number of innovations for the aerospace, automotive, yachting and wind power sectors, and now offers a comprehensive range of solutions for high performance composite materials: resins and prepregs for thermoplastic composite parts, high added value additives, and new generation structural adhesives.

A renowned major player in thermoplastic composite materials, Arkema has adopted a collaborative approach with many industrial partners on the issue of lighter materials and recyclability: in particular the Group is involved in flagship projects, like Effiwind in the field of wind power, and Compofast in the automotive sector.

A wide range of products for efficient and recyclable thermoplastic composite matrices Manufacturers are showing a growing interest in lightweight and resistant materials, and the recycling of their products. To address these concerns, Arkema has developed suitable resins and thermoplastic polymers. The Group is also willing to bring ready-to-use materials to composites molders.

New Polystrand® materials combine high strength fibers and engineered thermoplastic resins to make Continuous Fiber Reinforced Thermoplastics (CFRTP). Polystrand® CFRTP materials are available in multilayer rolls of tape or prepregs (X-Ply®) that can be processed by thermo-compression or thermostamping.
The use of Polystrand® offers opportunities to reduce weight while maintaining exceptional strength and impact resistance.

Elium® resins: these innovative thermoplastic resins, liquid at ambient temperature, unique on the market, are used to manufacture thermoformable and recyclable thermoplastic composite parts. They are suitable for traditional processing technologies such as RTM, infusion and FlexMolding™, and so can produce thermoplastic composites with the same equipment as for thermosets.

The Kynar® UHM™ PVDF thermoplastic resin is used for overmoulding or bonding to composite parts. It offers superior mechanical properties, including greater rigidity as well as excellent high temperature and fire resistance. Easy to process, Kynar® PVDF resins feature outstanding UV and chemical resistance. The most demanding industrial applications will find in Kynar® UHM™ a material that is strong, reliable, durable and highly cost-effective compared to other solutions.

Kepstan® PEEK (polyether ketone ketone) is used to replace metal in extreme conditions (offshore, aviation). Reinforced with carbon fibers, the final composite features rigidity comparable to that of metals for a much lower weight, as well as exceptional resistance to impact, high temperature, and highly< aggressive chemical agents.

Rilsan® high performance polyamide: 100% biosourced, in the form of fine powders or granules, it imparts chemical stability, abrasion resistance and impact resistance to composites even at very low temperatures. The Rilsan® polyamide matrix is used to produce thermoformable and recyclable thermoplastic composites.

Additives for thermoset composites
Arkema’s innovative additives significantly improve the inherent properties of thermoset composite materials. Nanostrength® nanostructured acrylic block copolymers: these additives act at the very heart of the material. They help enhance the impact resistance of the matrix with no loss of module, temperature stability, or UV and cracking resistance. They can be used both in epoxy or vinyl ester composite matrices and in structural adhesives.

Graphistrength® carbon nanotubes significantly improve the mechanical strength of composites. They also prevent the build-up of electric charges in the resulting components. Hence they fulfil the requirements of aerospace and automotive manufacture.

Resins from Sartomer®, an Arkema subsidiary and a major player in high performance resins for the composites market, provide solutions for replacing styrene (VOC-free, less toxic). The use of acrylate and methacrylate specialty resins (monomers, MCURE®, epoxy, etc.) significantly improves the performance of composite matrices.

Orgasol® ultra-fine polyamide powders minimise crack propagation at the fibre-matrix interface in thermoset prepregs. As a result, the final composites are tougher and longer lasting.

Luperox® organic peroxides and BlocBuilder® RC50 reactivity controller. Luperox® organic peroxides are crosslinking agents for unsaturated polyester resins that help speed up processing and ensure better control of continuous or semi-continuous processes to produce harder composite resins. BlocBuilder® RC50 reactivity controllers ensure the efficient performance of organic peroxides by controlling gelling and heat curing more effectively.

Structural adhesives for easy-to-process high-performance assemblies

Structural adhesives play a major role in the assembly of composite parts between them or with other materials (metal, plastics, aluminium, glass, etc.). Arkema offers several ranges:
SAF® two-component structural adhesives offered by AEC Polymers, a subsidiary of the Arkema Group: these methacrylate adhesives combine strong adhesion without the need for a primer on many substrates, very good flexibility thanks to the Nanostrength® block copolymer technology, and adjustable curing times (5 minutes to 2 hours).

Platamid® hotmelt adhesives: plasticizer-free and solvent-free, these thermoplastic copolyamides ensure excellent adhesion, with little product required, on a wide range of substrates: composite materials, textile, metal, leather, plastics. They help improve productivity through shorter cycle times, and can be reused and recycled.

About Arkema

A global chemical company and France’s leading chemicals producer, Arkema is building the future of the chemical industry every day. Deploying a responsible, innovation-based approach, we produce state-of-the-art specialty chemicals that provide customers with practical solutions to such challenges as climate change, access to drinking water, the future of energy, fossil fuel preservation and the need for lighter materials. With operations in close to 50 countries, some 19,000 employees and research centers in North America, France and Asia, Arkema generates pro forma annual revenue of some €7.6 billion, and holds leadership positions in all its markets with a portfolio of internationally recognized brands.

Source: Arkema
 


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