A new polyamide based on castor oil

EcoPaXX™ from DSM Engineering Plastics is a bio-based, high performance engineering plastic. The new material, which is based on polyamide (PA) 4.10, has been developed by DSM in recent years, and is now set to be commercialized.

Polyamide 4.10 is a “long-chain polyamide”. It pairs typical long-chain polyamide properties, such as low moisture absorption, with high melting point (highest of all bio-plastics) and high crystallization rate (typical for engineering plastics such as polyamide 6.6 and Stanyl polyamide 4.6).

Zero carbon footprint
Newly-introduced EcoPaXX™ is a green, bio-based material: approximately 70% of the polymer consists of building blocks derived from castor oil as a renewable resource. Castor oil (see main chemical structure on Figure) is a unique natural material and is obtained from the Ricinus Communis plant, which grows in tropical regions. It is grown in relatively poor soil conditions, and its production does not compete with the food-chain.

EcoPaXX™ has been shown to be 100 % carbon neutral from cradle to gate, which means that the carbon dioxide which is generated during the production process of the polymer, is fully compensated by the amount of carbon dioxide absorbed in the growth phase of the castor beans. According to Kees Tintel, project manager EcoPaXX™ “the carbon footprint of plastics is rapidly becoming a hot issue for Customers, therefore they really appreciate EcoPaXX™ being carbon neutral!”

High performance
EcoPaXX™ is a high-performance polyamide with excellent mechanical properties. It combines the benefits of a high melting point of ca. 250°C, with a high rate of crystallization enabling high productivity. The material has low moisture absorption and excellent chemical and hydrolysis resistance, which makes it highly suitable for various demanding applications, for instance in the automotive and electrical markets. A good example is its very good resistance to salts, such as calcium chloride. Because of its low moisture absorption, EcoPaXX™ will also keep good strength and stiffness after conditioning.

Source

– Related posts / Billets à lire, en complément :

• Some new bio-based polyamides

• Plastic production based on castor oil

• Back to the future for plants in the automotive industry

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