A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV Pierre ROUSSEAU MULTIBASE (a Dow Corning Company) Z.I. Chartreuse-Guiers - F-38380 Saint Laurent du Pont - France TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 1
Purpose Add to the Multibase TPE range Multiflex (PP/SEBS) a new proprietary TPV in addition to the Multibase-Dow Corning TPSiV (silicone vulcanizate). TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 2
Why a Proprietary TPV? By containing a crosslinked elastomer phase, a TPV keeps better elastic properties at high temperature. Multibase did not want a me-too product. Multibase has expertise in compounding Multiflex and dynamic vulcanization of TPSiV. TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 3
Targeted Applications for TPVs Automotive dynamic seals Primary & secondary door seals, Inner and outer belt line seals, Glass run channel seals, Hood seals, Airflap seals. Bellows Automotive bellows in engine compartment. Aesthetic parts When mat appearence is preferred. TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 4
Multiflex TES Morphology PP 0.2 µm 1µm 30nm PS MORPHOLOGY: PP + SEBS + OIL EB elastomer oil TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 5
Example of Application: Auto Door Seal EPDM metal Weather seals: flexible rubber strips around car doors. Make interiors weatherproof and quiet. From metal-epdm to PP-TPE. PP/TPV combines recyclability, lightness and cost effective solution. TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 6
Example of Application: Under-the-Hood Bellows Improved oil resistance, Temperature resistance. TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 7
New Multiflex TEV Competitive Advantages Multiflex TEV has all benefits of standard Multiflex TES. Multiflex TEV outperforms PP/EPDM-VD in long time ageing stability. Multiflex TEV relies on non hazardous chemistry. TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 8
Multiflex TEV vs Standard Multiflex TES = Processing, weathering resistance & coloring. ++ Compression set at high temperature: < 40% after 24h@125 C vs 65%. ++ Compression set stability over an extended period of time (dynamic sealing). ++ Stress relaxation (static sealing). + Oil resistance. + Mat appearance. TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 9
Multiflex TEV vs Standard Multiflex & PP/EPDM-VD Compression Set after 24 hours 70 60 Multiflex TEV PL21526 Multiflex G 60A21 BT Compression Set (%) 50 40 30 20 better TPO-VD 62A TPO-VD 65A 10 0 20 40 60 80 100 120 Temperature ( C) TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 10
Multiflex TEV vs Standard Multiflex & PP/EPDM-VD Compression Set at 125 C 90 80 Compression Set (%) 70 60 50 40 30 better CS 24h@125 C CS 168h@125 C 20 Multiflex TEV PL21526 Multiflex G 60A21 BT TPO-VD 62A TPO-VD 65A TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 11
Multiflex TEV vs PP/EPDM-VD & EPDM Rubber better TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 12
Multiflex TEV vs Standard Multiflex TES stress relaxation at 23 C 90 Stress Relaxation (%) 80 70 60 50 better 5% Elongation @ 23 C 15% Elongation @ 23 C 25% Elongation @ 23 C 35% Elongation @ 23 C 40 30 Mult.TEV PL19972 65A Mult.G60A21 Mult.G70A21 Mult.GT25A510 TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 13
Multiflex TEV vs Standard Multiflex TES stress relaxation at 100 C 90 80 better 5% Elongation @ 100 C 15% Elongation @ 100 C 25% Elongation @ 100 C 35% Elongation @ 100 C Stress Relaxation (%) 70 60 50 40 30 Mult.TEV PL19972 65A Mult.G60A21 Mult.G70A21 Mult.GT25A510 TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 14
Multiflex TEV vs Standard Multiflex & PP/EPDM-VD oil resistance after 168 hours: volume change volume change (%) 110 90 70 50 30 10 oil ASTM 1-168 hrs @ 23 C oil ASTM 1-168 hrs @ 100 C oil ASTM 3-168 hrs @ 23 C oil ASTM 3-168 hrs @ 100 C fuel Super 95-168 hrs @ 23 C better 345-10 Multiflex TEV PL21522 Multiflex G 60A21 BT TPO-VD 62A TPO-VD 65A -30-50 TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 15
Multiflex TEV vs Standard Multiflex & PP/EPDM-VD oil resistance after 168 hours: hardness change 30 20 10 hardness change (Sh A points) 0-10 -20-30 -40-50 Multiflex TEV PL21522 Multiflex G 60A21 BT TPO-VD 62A TPO-VD 65A oil ASTM 1-168 hrs @ 23 C oil ASTM 1-168 hrs @ 100 C oil ASTM 3-168 hrs @ 23 C oil ASTM 3-168 hrs @ 100 C fuel Super 95-168 hrs @ 23 C better -60 TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 16
Conclusions A newly developed TPV for sealing applications, Improved compression set for dynamic seals, Improved stress relaxation for static seals, Temperature resistance for under-the-hood seals and bellows, Better oil resistance for under-the-hood seals and bellows. Multiflex TEV from Multibase TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 17
A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV (end of presentation) TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 18