Sustainable materials
Research is carried out at Pirelli laboratories to increase the use of innovative materials and raw materials from renewable and recycled sources. Renewable materials such as lignin, plasticisers and vegetable oils are used, in addition to natural rubber and silica from rice husk, while recycled materials include derivatives from end-of-life tyres, such as ground tyre rubber, regenerated tyre rubber, and carbon black from pyrolysis.
Zinc oxide (predispersed with a polymeric binder)
Lignin
Natural rubber after milling
Rubber accelerator (predispersed with a polymeric binder)
Rubber accelerator in powder form
Rice husk (precursor for producing silica)
Sheets of natural rubber
Rice husk (precursor for producing silica)
Oil-extended synthetic Styrene-Butadiene Rubber (SBR)
Bromobutyl synthetic rubber (BIIR)
Recycled PET yarn
Powdered sulphur
Soybean oil
Oil-extended synthetic Styrene-Butadiene Rubber (SBR)
Rubber powder from end-of-life tyres
Paraffin wax
Recycled rubber from end-of-life tyres
Silica from rice husk ash
Recycled rubber from end-of-life tyres
Bromobutyl synthetic rubber (BIIR)
Rubber compound from laboratory mixer