A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV

Transcription

1 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 Saint Laurent du Pont - France TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 1

2 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

3 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

4 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

5 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

6 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

7 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

8 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

9 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

10 Multiflex TEV vs Standard Multiflex & PP/EPDM-VD Compression Set after 24 hours Multiflex TEV PL21526 Multiflex G 60A21 BT Compression Set (%) better TPO-VD 62A TPO-VD 65A Temperature ( C) TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 10

11 Multiflex TEV vs Standard Multiflex & PP/EPDM-VD Compression Set at 125 C Compression Set (%) 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

12 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

13 Multiflex TEV vs Standard Multiflex TES stress relaxation at 23 C 90 Stress Relaxation (%) better 5% 23 C 15% 23 C 25% 23 C 35% 23 C Mult.TEV PL A Mult.G60A21 Mult.G70A21 Mult.GT25A510 TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 13

14 Multiflex TEV vs Standard Multiflex TES stress relaxation at 100 C better 5% 100 C 15% 100 C 25% 100 C 35% 100 C Stress Relaxation (%) Mult.TEV PL A Mult.G60A21 Mult.G70A21 Mult.GT25A510 TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 14

15 Multiflex TEV vs Standard Multiflex & PP/EPDM-VD oil resistance after 168 hours: volume change volume change (%) oil ASTM C oil ASTM C oil ASTM C oil ASTM C fuel Super C better Multiflex TEV PL21522 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 15

16 Multiflex TEV vs Standard Multiflex & PP/EPDM-VD oil resistance after 168 hours: hardness change hardness change (Sh A points) Multiflex TEV PL21522 Multiflex G 60A21 BT TPO-VD 62A TPO-VD 65A oil ASTM C oil ASTM C oil ASTM C oil ASTM C fuel Super C better -60 TPE 2005 Berlin - A New Thermoplastic Vulcanizate (TPV) With Differentiated Properties In Comparison With EPDM Based TPV 16

17 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

18 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