alternatives for biobased materials in tires Heidi Beers Eco - PowerPoint PPT Presentation

More environmental friendly alternatives for biobased materials in tires Heidi Beers – Eco Efficiency specialist at Teijin Aramid

Subjects Intrinsic Green tires: Recycled PET sustainability of comparison on versus virgin Twaron PET function

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Products Teijin Aramid

Intrinsic sustainability of Twaron in applications Light Strong 5 times stronger than steel at the same weight. Density 1.44 g/cm 3 Resists heat Endurance Low maintenance LOI - 29-37% No corrosion Decomposition 500 o C

Overview of applications Taking the heat in the brakes For vehicles that save lives Creating durable tires When Worry free oil Increased steel fails lifetime transport automotive & industrial hoses Twaron keeps Longer lasting transmission belts us on-line

How does the intrinsic sustainability of Twaron match with tire developments? Requirements for tire developments: Lower weight tires • Leading to lower rolling resistance • Less CO 2 and particulate matter emissions Less raw materials needed Requires high strength yarns (per mass unit) Rough comparison on amounts of materials needed for reinforcement: • Twaron: rayon = 1:3 • Twaron: PET = 1:2 Steering precision Requires dimensional stability

Subjects Intrinsic Green tires: Recycled PET sustainability of comparison on versus Twaron Virgin PET function

What is a “green” tire? A a tire made 100% from natural materials? B a tire that results in a better eco performance over the whole life cycle (value chain)?

Where is the biggest environmental impact in the value chain?

Rayon replacement in carcass Rough comparison on amounts of materials needed for reinforcement: Twaron: rayon = 1:3 Twaron: PET = 1:2 RAYON CORDS TWARON TWARON/PET or or IN CARCASS CORDS CORDS 67 gr Twaron 300 gr rayon 100 gr Twaron 67 gr PET 600 gr rubber 200 gr rubber 270 gr rubber compound compound compound Information: based on public available literature and patents

Rayon replacement in carcass REINFORCEMENT HYBRID RAYON FULL TWARON MATERIAL: TWARON/PET 67 gr. Twaron 300 gr. Rayon 100 gr. Twaron Relevant aspects 67 gr. PET 300/600 gr. rubber 100/200 gr. rubber 135/270 gr. rubber Rolling resistance - + ++ RAYON Dynamic stiffness + + ++ 0 0 - Comfort TWARON / PET + + 0 Fatigue - + ++ Lower weight FULL TWARON - + -/0 Commercially feasible Information: based on public available literature and patents

From kg to function: Global Warming Potential GWP per kg (incl. dipping) GWP per function (incl. rubber) Kg CO 2 -eq / carcass Kg CO 2 -eq / kg

Comparison passenger How? Eco Efficiency Approach tire carcass of TUV certified Customer Benefit 1. compare on function over total value chain Model. - what, how much (raw materials, production) - how long, how well (use phase) 2. Check all effects over the total value chain 3. Focus on the differences 4. Be conservative VERY IMPORTANT 5. Involve from the start and discuss the results with customers and value chain partners: do they agree? Are there other views that need to be taken into account? Is it both environmentally better, and is it a business case?

Differences in the value chain: WHAT AND HOW MUCH HOW LONG, HOW WELL MANU- RAW MATERIALS DISTRIBUTION USE PHASE END OF LIFE FACTURING Less Less Fuel savings Twaron/PET raw materials: equal material less transport lighter tire, less equal Twaron, PET Rubber ecoburden and costs rolling resistance More More Rayon raw materials: equal material, more transport equal Rayon Rubber ecoburden and costs Benefits for tire manufacturers Benefits for car producers and Better CO 2 footprint consumers (drivers, fleet owners) Less costs Lower fuel use for raw materials Better CO 2 footprint, less costs!

Subjects Intrinsic Green tires: Recycled PET sustainability of comparison on versus Twaron Virgin PET function

Rayon replacement in carcass Rough comparison on amounts of materials needed for reinforcement: Twaron: rayon = 1:3 Twaron: PET = 1:2 or or HYBRID HYBRID RAYON Twaron with Twaron with RECYCLED PET VIRGIN PET Information: based on public available literature and patents

Rayon replacement in carcass REINFORCEMENT TWARON/ TWARON/ RAYON MATERIAL: VIRGIN PET RECYCLED PET 67 gr. Twaron 67 gr. Twaron 300 gr. Rayon Relevant aspects 67 gr. virgin PET 67 gr. recycled PET 600 gr. rubber 270 gr. rubber 270 gr. rubber - + + Rolling resistance RAYON + + + Dynamic stiffness 0 0 0 Comfort TWARON / VIRGIN PET + + + Fatigue Lower weight - + + TWARON / RECYCLED PET - + + Commercially feasible Information: based on public available literature and patents

From kg to function: Global Warming Potential GWP per kg (incl. dipping) GWP per function (incl. rubber) Kg CO 2 -eq / carcass Kg CO 2 -eq / kg

Conclusion: A Biobased is not always better B Calculate per function together with chain partners

Thank you for your attention For more information: Heidi.beers@teijinaramid.com Vincent.siebes@teijinaramid.com