Modena, Italy – Huntsman has launched a new filler dosing system. The device can be coupled with its Castech machines to add up to 25% of recycled content by weight to Tecnothane hot cast polyurethane elastomer systems. It can be retrofitted to machines produced after 2018.
A variety of materials can be added using the dosing system, including recycled rubber, solid PU and TPU, and even fibres. The proportion, density and size of the recyclates can be varied depending on requirements for the end product.
The new system has been engineered to minimise the risk of air bubble formation when the recycled fillers are added, which would have a detrimental effect on component quality. A mixture of recyclates can be metered into any of the three components that are combined to make Tecnothane hot cast elastomers. Once mixed with the system, the recycled content flows freely into the mould, and bonds well with the matrix.
‘With sustainability top of the agenda for many of our customers, they now have the freedom to incorporate recycled content into their parts – with zero compromise on component quality, durability, or performance,’ said Andrea Ghermandi, business development manager EAME at Huntsman.
The Castech machines are commonly used to make industrial components, casting compact polyurethane elastomers and microcellular elastomer foams from all types of isocyanate and chain extender combinations. The resulting components, the company says, are optimised for harsh industrial condition, and logistics applications such as wheels, castors and rollers.
