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Dow Corning Korea Ltd. Multibase July 12th

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  1. TPE Specialities Training Package Dow Corning Korea Ltd. Multibase July 12th Multibase Korea

  2. OUTLINE • OUTLINE • Part I. TPE Introduction • Part II. Multiflex Introduction  • Part III. Applications of Multiflex  Multibase Korea

  3. Part I. TPE Introduction • Part I. TPE Introduction •  Multibase Korea

  4. Part I. TPE Introduction • Contents • 1. Standard definition of TPE • 2. Family Draft of TPEs • 3. History of TPE • 4. Conception of base of TPE • 5. Property Comparison between TPEs Multibase Korea

  5. Part I. TPE Introduction • 1. Standard definition of TPE • According to ISO 1382, Thermoplastic Elastomer is a polymer or a mixture of polymers which doesn’t need vulcanisation or reticulation when processed, but demonstrates similar properties as vulcanised rubber at service temperature. These properties disappear at processing temperature to allow the ulterior process possible, but reappear as the material returns to working temperature. Multibase Korea

  6. TPE FAMILY Olefinic Styrenic PVC Technopolymers Plastified PVC TPO TPV Hydrogenated Base Recycled TPV Matellocene base (SBS) TPU (SEBS, SEPS) Partly PVC Reactor vulcanized Totally vulcanized Pure COPE Pure alloys R-TPV P-TPV Compounds Compounds Metallocene COPA ** F-TPV Base Base EPDM Base Compounds EPDM Others Other base materials* * Nitrile, acrylic, naturel rubber... **With TPU, acrylic, polyolefin, polyamid... Metallocene Base(modified EPDM or Modified PP Copolymer) Part I. TPE Introduction • 2. Family Draft of TPEs Multibase Korea

  7. Part I. TPE Introduction • 3. History of TPE 1950TPU Thermoplastic Polyurethane (DESMOPAN, ESTANE) PVC-NBR (Physical mixture) 1961TPU Thermoplastic Polyurethane (ELASTOLLAN) 1965SBS Styrene butadiene styrene Copolymer (CARIFLEX TR) 1970SEBS Styrene ethylene butylene styrene Copolymer (KRATON G) COPE Ether-ester Copolymer (HYTREL) 1975TPO-VD Polyolefin/dynamically vulcanised elastomer mixture(not commercialized) 1976COPE Ether-ester Copolymer (ARNITEL) 1980COPA-PEBA Ether-amide Copolymer (PEBAX) 1981TPO-VD Dynamically vulcanised PP-EPDM (Santoprene) 1984TPE EVA-VC EVA/vinyl chloride (ALCRYN) 1985TPE PP-NBR Dynamically vulcanised PP/NBR (Geolast) 1987TPE PP-NR Dynamically vulcanised PP-NR (nitrile) (Vyram) 1988TPE PP-BIIRPP/bromic butyl (TREFSIN) 1990~~ POP, POE, ESI, TPSiV, EHPP... Multibase Korea

  8. Rigid phase: Polystyrene Soft phase: Poly-ethylene-butylene Part I. TPE Introduction • 4. Conception of base of TPE • Principle: In all the TPEs, it exists one soft phase and one • rigid phase, which endow the material with elasticity. • Example 1: SEBS and SBS Multibase Korea

  9. Part I. TPE Introduction • Example 2: high hardness and low hardness TPU • Others: COPE,COPA...  High hardness Rigid phase: Isocyanate Soft phase:Ester or Ether  Low hardness Rigid phase Soft phase Multibase Korea

  10. Soft phase: Vulcanized EPDM, Rigid phase: PP Chemical band or bridge Part I. TPE Introduction • Example 3: TPV PP/EPDM , Something different, has two phases through a physical mixing process. • Add. Volcanized rubber • Others: TPO, PP/NBR-VD... Multibase Korea

  11. 55 COPA 70 80 COPE 75 75 TPU 75 60 TPV – NBR 50 35 TPO(PP/EPDE) – TPV(PP/EPDM-VD) 50 0 SBC (SEBS, SEPS, SBS) 55 Thermoelastomers Thermoplastics Hardness scale: Shore D from 30 to 100 Sh. Hardness scale: Shore A, from 0 to 100 Sh. Part I. TPE Introduction 5. Property Comparison between TPEs Hardness Range: Multibase Korea

  12. Part I. TPE Introduction • Heterogeneity of properties of a material is due to: • Anisotropy after transformation • Wide hardness range in the same family Multibase Korea

  13. Part I. TPE Introduction Multibase Korea

  14. Part I. TPE Introduction Multibase Korea

  15. Part I. TPE Introduction • 3. Compression set vs Hardness Multibase Korea

  16. Part I. TPE Introduction To continue this comparison, we choose a specimen from each family at same hardness range. But as some materials do not exist in this range, we choose the closest one. (SEBS here means a TPE based on SEBS) Multibase Korea

  17. Part I. TPE Introduction Multibase Korea

  18. Part I. TPE Introduction Multibase Korea

  19. Part I. TPE Introduction Multibase Korea

  20. Part I. TPE Introduction Multibase Korea

  21. Part I. TPE Introduction Multibase Korea

  22. Part I. TPE Introduction Multibase Korea

  23. Part I. TPE Introduction Multibase Korea

  24. Part I. TPE Introduction Multibase Korea

  25. Part I. TPE Introduction • 12. Ease of processing • Because of the existence of vulcanised rubber, TPV is generally difficult to process, and TPO, which has a property very close to thermoplastic, can be processed very easily. The processing facility of other TPE is between the two. • + TPO • Other TPEs • - TPV Multibase Korea

  26. Part I. TPE Introduction 13. Summary of some points:(5~best; 1~worst) Multibase Korea

  27. Part I. TPE Introduction Continued: Multibase Korea

  28. Advantages Very wide range of service temperature -60°C to 150°C, even to 205°C Excellent resistance to abrasion Good resistance to UV and ozone Excellent resistance to tearing strength Good resistance to impact Good flexibility memory Impermeability to gas Resistance to oils and fuels Colourable Weaknesses Middle compression set No low hardness products Hydrolysis problem Price Part I. TPE Introduction • Summary : COPE • Examples of commercialised COPE: • Arnitel of DSM • Hytrel of DUPONT • Lomod of GE Plastics Multibase Korea

  29. Advantages wide range of hardness 50A-75D low density 0.89-1.3 Good compromise quality/price Good compatibility with PP Colourable and surface can be made paintable Good weatherability Good performance at low temperature Weaknesses Poor elasticity Poor compression set Poor resistance to oils and fuels Limited mechanical properties Feel not as rubbery as other TPEs Part I. TPE Introduction • Summary : TPO • Examples of commercialised TPO: • Hifax of MONTELL • Vistaflex of AES Multibase Korea

  30. Advantages Wide range of hardness 45A-50D Low density (<1) Service temperature from -60°C~135°C Good weatherability, good heat aging Excellent compression set at 100°C~120°C Good mechanical properties Colourable Weaknesses Poor C.S for hard product No transparent grade Limited resistance to fuels Hardness below 40A not available Part I. TPE Introduction • Summary: TPV (PP/EPDM-VD) • Examples of commercialised TPV: • Santoprene of AES • Sarlink of DSM Multibase Korea

  31. Advantages Resistance to petroleum products Good weatherability without pressure Good resistance to ozone Co-extrudability with PE,PP,EVA Weaknesses Poor C.S for hard product Deformation at high temperature Part I. TPE Introduction • Summary:TPV (PP/NBR-VD) • Examples of commercialized TPV (PP/NBR-VD): • Geolast of AES Multibase Korea

  32. Advantages Wide range of hardness 55A-75D Excellent resistance to abrasion Excellent resistance to tearing strength Excellent resistance to impact Good resistance to ozone Good resistance to oils and fuels Compatible with PC,ABS, PVC… Good resistance to non-polar fluids. Weaknesses Bad compression set High density 1.25 Deformation at high temperature Risk of hydrolysis of certain grades Bad resistance to UV Not good for soft-touch application because of low co-efficient of friction Part I. TPE Introduction • Summary:TPU • Examples of commercialised TPU: • Desmopan of Bayer • Elastollan of BASF • Pellethane of DOW • Estane of BF Goodrich Multibase Korea

  33. Advantages Very wide range of hardness 0A-50D Good performance at low temperature especially SBS Low density 0.9-1.2 Service temperature -50°C-120°C Wide choices for compounding Colourable Good weatherability Compatibility with polyolefin Transparent products available Weaknesses Deformation at high temperature Swelling in oil and fuels Limited UV resistance for SBS Part I. TPE Introduction • Summary:TPE-s • Examples of commercialized SEBS: • Kraton of SHELL • Tuftec of ASAHI • Septon of KURARAY • Calprene of REPSOL • Compounders • Multiflex of Multibase • Tefabloc of TCT • Thermolast of Kraiburg... Multibase Korea

  34. Part I. TPE Introduction APPLICATIONS OF DIFFERENT TPEs SBC TPV TPO TPU Shoe sole Automotive Automotive Adhesives Bitumen modification Construction Sport Automotive Polymer modification Polymer modification Medical Wire and Cable Adhesives Extruded profiles Wire and Cable Shoe sole Wire and Cable Films Compounds Extruded profiles Multiflex Multibase Korea

  35. Part I. TPE Introduction This part is concluded with the following graph: Extract: TPV v/s TPE-s Multibase Korea

  36. Part II. Multiflex Introduction • Part II. Multiflex Introduction •  Multibase Korea

  37. Part II. Multiflex Introduction • Contents • 1. What is Multiflex ? • 2. What is compounding ? • 3. What can we obtain with these compounds, Multiflex? • 4. Multiflex Family -Nomenclature of TPE Specialities Dept. • 5.Multiflex Family -Nomenclature of Automotive Dept. Multibase Korea

  38. Part II. Multiflex Introduction • 1. What is Multiflex ? • Multiflex are compounded thermoplastic elastomers based on different polymers, like SBS, SEBS, Polyolefins and other engineering plastics. They are totally different from pure SEBS or SBS. • That means all of Multiflex products are Compounds and our producing art is Compounding. Multibase Korea

  39. Part II. Multiflex Introduction • 2. What is compounding ? • To mix one base polymer with certain other materials like oils, fillers, additives and other polymers, in order to give some properties to the mixture, so that it can be used for the final application. • The final mixture is called compound. Multibase Korea

  40. Part II. Multiflex Introduction • 3. What can we obtain with these compounds, Multiflex? • Enhanced mechanical properties • Compression set • Resistance to abrasion • Resistance to scratch and mar … • Special characteristics • Damping characteristics • Foamability • Flame retardant • Resistance to bacteria • Compatibility with other engineering plastics • Low cost, sometimes at an acceptable level, sometimes as low as possible. Multibase Korea

  41. Part II. Multiflex Introduction • 4. Multiflex Family -Nomenclature of TPE Specialities Dept. • Example : G 60 A 11 B 12345 N0200 • G 6 0 A 1 1 B 1 2 3 4 5 N 0 2 0 0 •         • Options • Processing code Colour number • Colour code • Hardness scale(A or D)Development code • Hardness • Base of the product Multibase Korea

  42. Part II. Multiflex Introduction • Base of product : • C = based on SBS • G = based on SEBS • B = based on PA & Polyolefin • SG = based on Acrylate Styrene Acrylonitrile (Sunigum) • ER = based on Polyolefin • GX = foamed G • A = Alloys • A1000 = compatible with PC, ABS, PMMA, ASA, SAN • A2000 = compatible with PET-PBT • A3000 = compatible with PA • A4000 = compatible with CP, CA, ABS, ASA, SAN,PET,PETG Multibase Korea

  43. Part II. Multiflex Introduction • Colour code • 0 = White • 1 = Natural • 2 = Black • 3 = Coloured • 4 = Transparent • Processing Code • 1 = General processing • injection and extrusion • 6 = Extrusion Multibase Korea

  44. Part II. Multiflex Introduction • Options : • B = UV stabilised • M = Medical • T = Thermal resistance and good compression set • FR = Flame retardant with halogen in formulation • FRX = Flame retardant without halogen in formulation Multibase Korea

  45. Part II. Multiflex Introduction • Multiflex C • Transparent grade available • Food approval possible • Soft touch possible • Low service temperature • Lower density compared to G range • Aggressive price • Bad C.S • Bad Weatherability • No very soft product(< 20 A) • Multiflex G • Transparent grade available • Food approval possible • Soft touch possible • Shore A 0 possible • UV stabilised • More C.S choice compared to C range (Intermediate and T series) • Higher price compared to C range Multibase Korea

  46. Part II. Multiflex Introduction • An example of comparison between C and G at same hardness (physical properties) Multibase Korea

  47. Part II. Multiflex Introduction • Multiflex SR • IncludingB range and certain G products, half rigid product, hardness from 30 D to 55 D; B range has reinforced mechanical properties and low temperature performance, because of PA. • Multiflex TPO • ER range, based on polyolefin, very high hardness without reinforced mechanical properties. Multibase Korea

  48. Part II. Multiflex Introduction • Multiflex TEA • Thermoplastic Elastomer Alloys, including SG range and A range, are compatible with different engineering plastics, which is the most important characteristic of this family. • Multiflex FG • Some G range products, flame retardant, with relative high density. UL94 V0 possible. Multibase Korea

  49. Part II. Multiflex Introduction Conclusiontable : Multibase Korea

  50. Part II. Multiflex Introduction 5. Multiflex Family -Nomenclature of Automotive Dept. Example : G 60 A 510 804 FXT G 60 A 5 1 0 804 FXT color Hardness + Shore Family: C G GT GX ER L OR A 1000 A 3000 0: Standard 2: High fluidity 4: Extrusion Last 3 numbers of item number 4: Intermediate C,S; weak smell 5: Standard 6: Aesthetic 7: Translucent 1: Interior 2: Exterior 5: Under bonnet L: High frequency weldable; OR: Resistance to oil Multibase Korea