Additives for improved silica tire performance

Transcription

1 Additives for improved silica tire performance Dr. Thomas Brackemeyer Head of Global Product Management Specialty Products, Rubber Chemicals business unit, LANXESS Shanghai, September 6, 2012

2 A leading supplier of premium rubber chemicals to enhance rubber properties Position: Among top 3 Facts Vision: Global: Be THE Western-based supplier World-scale and regional production facilities Products & brands (selection) Portfolio: Accelerators, antidegradants, anti reversion agents, specialties Brands: Applications (selection)

3 Lead by innovation Commitment Investments Expertise Alliances Customer-oriented innovation

4 Fuel efficiency Wet grip LANXESS Rubber Chemicals recent innovations on rolling resistance are in line with tire trends About 40 to 50% of tires are not requirement-conform yet* Recent announcements of grade A tires tremendous innovation efforts on rolling resistance (RR) Compounding excellence on Green Tire technology is the focus area to improve RR and wet grip Innovative additive solutions compounding flexibility for further tire improvements Fuel efficiency: Strong focus of tire innovations EU tire label Noise performance * According to latest available studies regarding summer and winter tires

5 LANXESS Rubber Chemicals R&D focusing on solutions for Green Tire compounding Tire Labeling Legislation Japan Europe South Korea USA? Brazil? China? Vulcuren Silica Additive 9202 Vulcuren Vulcuren Vulkalink Vulka xyz Vulka xyz Vulka xyz Reversion resistance in passenger car UHP tire, EMT tire, truck tire Zinc free silica (tread) processing aid DPG replacement (i.e. in silica tires) Reduction of rolling resistance Reduction of rolling resistance More to come! More to come! More to come!

6 LANXESS Rubber Chemicals R&D focusing on solutions for Green Tire compounding Tire Labeling Legislation Japan Europe South Korea USA? Brazil? China? Vulcuren Silica Additive 9202 Vulcuren Vulcuren Vulkalink Vulka xyz Vulka xyz Vulka xyz Reversion resistance in passenger car UHP tire, EMT tire, truck tire Zinc free silica (tread) processing aid DPG replacement (i.e. in silica tires) Reduction of rolling resistance Reduction of rolling resistance More to come! More to come! More to come!

7 Vulcuren used as functional additive in a standard recipe for silica treads Innovative applications of existing products Innovative, new products Existing products Reference Innovation Buna CB Buna VSL Corax N Vulkasil S TDAE oil 8 8 Stearic acid 1 1 Vulkanox 4020/LG (6PPD) 1 1 Vulkanox HS/LG (TMQ) 1 1 ZnO RS Antilux 654 (wax) Silane Si 69 (TESPT) DPG 2 2 Vulkacit CZ/C (CBS) Sulfur Vulcuren 1 As a reference for product innovations a standard recipe for silica tread compounds is used

8 Vulcuren ideal vulcanization curve if used in the first non-productive mixing step S [dnm] Innovative applications of existing products Innovative, new products ºC Time (s) Reference Vulcuren Significant reduction in t90 time shorter vulcanization cycle No marching modulus effect constant tire properties independent from vulcanization time

9 Vulcuren direct effect on rolling resistance without changing the compound composition Innovative applications of existing products Innovative, new products % Rebound elasticity 60ºC Rolling Resistance Indicator Considerably higher rebound elasticity at 60ºC provides first indication for improved rolling resistance 50 Reference Vulcuren

10 Vulcuren direct effect on rolling resistance without changing the compound composition Tan d 60ºC Tan d Innovative applications of existing products Innovative, new products Loss factor 60ºC (Eplexor) Eplexor Significant reduction of loss factor at 60ºC Reference Vulcuren Rolling Resistance Indicator Temperature [ºC] Measurement of loss factor is good indicator for better rolling resistance Slight improvement also expected for wet grip Reference Vulcuren

11 LANXESS Rubber Chemicals R&D focusing on solutions for Green Tire compounding Tire Labeling Legislation Japan Europe South Korea USA? Brazil? China? Vulcuren Silica Additive 9202 Vulcuren Vulcuren Vulkalink Vulka xyz Vulka xyz Vulka xyz Reversion Resistance in passenger car UHP tire, EMT tire, truck tire Zinc free silica (tread) processing aid DPG replacement (i.e. in silica tires) Reduction of rolling resistance Reduction of rolling resistance More to come! More to come! More to come!

12 Polymer Silica The product idea is based on additives which could build a reversible polymer-silica network Innovative applications of existing products Innovative, new products New bi-functional additives building S - functionality Polar group H S Vulkalink P HO HO HO A chemical bond to polymer via the S -functionality Physical bond to silica via the polar group HO HO

13 New additive Vulkalink 1871 provides additional polymer-silica interaction Innovative applications of existing products Innovative, new products Bi-functional additive building Polymer Silane Silica EtO EtO EtO OH S x C C C Si OH Si O Si Vulcanization bonding to polymer Hydrophobation bonding to silica * n * C x -S-S-S-S-C x silane Silane + Vulkalink LXS additive 1871 R-COOH silica A chemical bond to polymer Physical bond to silica No mixing problems Easy adjustment of modification via additive quantity Close development cooperation with our global customers

14 Shore A Sec. New additive Vulkalink 1871 results in higher compound hardness Innovative applications of existing products Innovative, new products Hardness shore A 74 Monsanto-MDR t95 MDR 170ºC 2000 Leads to considerably higher hardness of vulcanized compounds Same vulcanization behavior (Monsanto- MDR t95) Reference Vulkalink TM Reference Vulkalink TM 1871

15 New additive Vulkalink 1871 enables similar loss factors even for stiffer compounds Tan d 60ºC G [Mpa] Innovative, new product Loss factor 60ºC (Eplexor) Reference Vulkalink TM 1871 MTS (Payne Effect) Reversible networks Strain [%] Similar loss factor at 60ºC Enables reduction of silica filler without losing any hardness Reference Vulkalink TM 1871

16 Tan d 60ºC New additive Vulkalink % reduction of loss factor for silica reduced compounds Innovative, new product Potential of loss factor (60ºC) Reduction 80 6,4 0 step1 80 6,4 1 (Eplexor) > 20% step , ,6 1 Rolling Resistance Indicator Silica Si 69 Vulkalink 1871 By using Vulkalink at a decreased level of silica, the compound has a significantly lower loss factor (tan delta at 60 C) at the same hardness 1 phr Vulkalink is a hardness equivalent for 10 phr silica

17 LANXESS Rubber Chemicals innovative rubber chemicals for Green Mobility The improvement of fuel efficiency is a key challenge for tire manufacturers LANXESS functional additives improve the processing and performance of silicafilled tire compounds Vulcuren and Vulkalink show great potential to reduce rolling resistance Picture/Artwork size: Height = cm Width = 7.09 cm Development of new additives for Green Mobility is the main R&D focus in LANXESS Business Unit Rubber Chemicals

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