thermoplastic lastomers nylabondtm 7091...thermoplastic elastomers technical brief nylabondtm 7091...

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THERMOPLASTIC ELASTOMERS RTP Company Corporate Headquarters • 580 East Front Street • Winona, Minnesota 55987 USA website: www.rtpcompany.com • email: [email protected] TELEPHONE: U.S.A. +1 507-454-6900 SOUTH AMERICA +55 11 4193-8772 MEXICO +52 81 8134-0403 EUROPE +33 380-253-000 SINGAPORE +65 6863-6580 CHINA +86 512-6283-8383 WIMAN CORPORATION +1 320-259-2554 ESP +1 800-432-2386 TM THERMOPLASTIC ELASTOMERS TECHNICAL BRIEF NYLABOND TM 7091 Nylabond TM 7091 for Superior Heat and Fluid Resistance • Suitable for a wide range of applications • Superior to conventional TPEs, “soft” polyamides, and copolyesters in applications that require exposure to automotive fluids at high temperatures • Bondable to Polyamide (PA) BENEFITS FEATURES • Designed to withstand long-term exposure to temperatures • Resistant to aggressive automotive fluids, even fluids at 150 °C/300 °F • Developed for easy thermoplastic processing, including blow molding, injection molding, and overmolding Engineers who design automobiles and their components are challenged to improve vehicle efficiency, appeal to regional preferences, manage synthetic long-life fluids, and meet extended service life expectations. A key element to meeting these challenges is to select materials that are capable of handling long-term exposure to high temperatures and fluid immersion. Fortunately, the Nylabond TM 7091 Series from RTP Company is formulated for these challenges, making it one of the world’s highest performing thermoplastic elastomers. Nylabond TM 7091 can withstand long-term exposure to the most aggressive automotive fluids – engine oil, transmission fluid, and lubricating greases – for the life of the vehicle, even when those fluids are hot. Developed for easy thermoplastic processing, including blow molding, injection molding, and overmolding, Nylabond TM 7091 materials suit a wide range of applications, including: • automotive boots (constant velocity joints, steering, drivelines/propeller shaft) • transmission components • exclusion seals • air intake ducts and change-air cooler ducts • vibration isolators/mounts In addition, Nylabond TM 7091 formulations are suitable for many applications with occasional (or “splash”) contact with coolants or fuel. NEW REQUIREMENTS, NEW MATERIALS Historically, thermosets and TPVs capable of withstanding 125 °C environments have been specified; however, many automotive under-hood and industrial components are now being required to withstand long-term exposure to 150 °C in air and fluid immersion for the life of the vehicle or component. As a result, many part specifications have been written to require materials to withstand 2000h or longer continuous exposure to 150 °C hot air and oil. Spike temperatures of up to 175 °C can also be experienced under extreme under-hood conditions. For applications with 150°C exposure, like air/fluid transport systems, vibration/isolation dampening, and sealing, thermosets such as silicone (VMQ), polyacrylate (ACM), and ethylene acrylates (AEM) have traditionally been used due to their cost- performance balance; but their performance can be lacking. VMQ suffers severe volume swell and weeping when exposed to hot oils and cannot be considered an oil-resistant material. ACM and AEM suffer from long overall cure cycle, often involving off-line post-curing, and high specific gravity after compounding. Finally, thermoset elastomers are not readily in-process or post-consumer recyclable. SUPERIOR PERFORMANCE The Nylabond TM 7091 Series is far superior to conventional TPEs, polyamide elastomers, and copolyesters in applications that require exposure to automotive fluids. In fact, tests show that components made from Nylabond TM 7091 far outperform components made of silicone rubber and copolyester when exposed to oils and lubes at 150 °C/300 °F. An excellent choice for a wide range of components, Nylabond TM 7091 grades provide better fluid and heat resistance than any other commercially available thermoplastic elastomer. To learn more, contact your local RTP Company representative, or visit our website at www.rtpcompany.com.

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Page 1: THERMOPLASTIC LASTOMERS NYLABONDTM 7091...THERMOPLASTIC ELASTOMERS TECHNICAL BRIEF NYLABONDTM 7091 NylabondTM 7091 for Superior Heat and Fluid Resistance • Suitable for a wide range

THERMOPLASTIC ELASTOMERS

RTP Company Corporate Headquarters • 580 East Front Street • Winona, Minnesota 55987 USA website: www.rtpcompany.com • email: [email protected]

TELEPHONE: U.S.A. +1 507-454-6900

SOUTH AMERICA +55 11 4193-8772

MEXICO +52 81 8134-0403

EUROPE +33 380-253-000

SINGAPORE +65 6863-6580

CHINA +86 512-6283-8383

WIMAN CORPORATION +1 320-259-2554

ESP +1 800-432-2386

TM

THERMOPLASTIC ELASTOMERS TECHNICAL BRIEF

NYLABONDTM 7091

NylabondTM 7091 for Superior Heat and Fluid Resistance

• Suitable for a wide range of applications

• Superior to conventional TPEs, “soft” polyamides, and copolyesters in applications that require exposure to automotive fluids at high temperatures

• Bondable to Polyamide (PA)

BENEFITS

FEATURES

• Designed to withstand long-term exposure to temperatures

• Resistant to aggressive automotive fluids, even fluids at 150 °C/300 °F

• Developed for easy thermoplastic processing, including blow molding, injection molding, and overmolding

Engineers who design automobiles and their components are challenged to improve vehicle efficiency, appeal to regional preferences, manage synthetic long-life fluids, and meet extended service life expectations. A key element to meeting these challenges is to select materials that are capable of handling long-term exposure to high temperatures and fluid immersion. Fortunately, the NylabondTM 7091 Series from RTP Company is formulated for these challenges, making it one of the world’s highest performing thermoplastic elastomers.NylabondTM 7091 can withstand long-term exposure to the most aggressive automotive fluids – engine oil, transmission fluid, and lubricating greases – for the life of the vehicle, even when those fluids are hot. Developed for easy thermoplastic processing, including blow molding, injection molding, and overmolding, NylabondTM 7091 materials suit a wide range of applications, including: • automotive boots (constant velocity joints, steering, drivelines/propeller shaft) • transmission components • exclusion seals • air intake ducts and change-air cooler ducts • vibration isolators/mountsIn addition, NylabondTM 7091 formulations are suitable for many applications with occasional (or “splash”) contact with coolants or fuel. NEW REQUIREMENTS, NEW MATERIALS

Historically, thermosets and TPVs capable of withstanding 125 °C environments have been specified; however, many automotive under-hood and industrial components are now being required to withstand long-term exposure to 150 °C in air and fluid immersion for the life of the vehicle or component. As a result, many part specifications have been written to require materials to withstand 2000h or longer continuous exposure to 150 °C hot air and oil. Spike temperatures of up to 175 °C can also be experienced under extreme under-hood conditions.

For applications with 150°C exposure, like air/fluid transport systems, vibration/isolation dampening, and sealing, thermosets such as silicone (VMQ), polyacrylate (ACM),

and ethylene acrylates (AEM) have traditionally been used due to their cost-performance balance; but their performance can be lacking. VMQ suffers

severe volume swell and weeping when exposed to hot oils and cannot be considered an oil-resistant material. ACM and AEM suffer from long overall cure cycle, often involving off-line post-curing, and high specific gravity after compounding. Finally, thermoset elastomers are not readily in-process or post-consumer recyclable.

SUPERIOR PERFORMANCE

The NylabondTM 7091 Series is far superior to conventional TPEs, polyamide elastomers, and copolyesters in applications that require exposure to automotive

fluids. In fact, tests show that components made from NylabondTM 7091 far outperform components made of silicone rubber and copolyester when exposed to oils and lubes at 150 °C/300 °F. An excellent choice for a wide range of components, NylabondTM 7091 grades provide better fluid and heat resistance than any other commercially available thermoplastic elastomer. To learn more, contact your local RTP Company representative, or visit our website at www.rtpcompany.com.

Page 2: THERMOPLASTIC LASTOMERS NYLABONDTM 7091...THERMOPLASTIC ELASTOMERS TECHNICAL BRIEF NYLABONDTM 7091 NylabondTM 7091 for Superior Heat and Fluid Resistance • Suitable for a wide range

NYLABONDTM 7091 - APPLICATION EXAMPLES

Cold side charged (mono layer) air ductGerman OEM

• High temp and oil resistance • Acid condensate resistance • 3D suction blow-moldable • Hot plate weld

adhesion to PA • Weight reduction

vs. rubber hose

101010

181818

111111121212

131313

222

333

171717

666555

191919

161616151515

111

444 777

999

888

141414

BLOW MOLDING APPLICATIONS

OVERMOLD/ADHESION TO POLYAMIDE APPLICATIONS

INJECTION MOLDING APPLICATIONS

Transmission modules/sensors (various)OEM: German Tier 1

• Overmold adhesion to PA • Resistance to transmission fluid

NylabondTM 7091

Exclusion seals for oil and diesel filter componentsUSA Oil Filter Maker & US Diesel Filter Maker

• Overmold adhesion to PA66 GF • Oil and diesel fuel resistance

Polyamide GFNylabondTM 7091

Electrical connector/isolatorsUSA Tier 1

• High temperature capability • Thermoplastic molding vs. rubber

Clean air intake cuff to turbo inletHeavy Truck OEM

• High temperature capability • Spin weld adhesion to PA6 GF15 • Space reduction (elimination of clamp)

313131303030 888

202020

999191919

222181818

777292929

171717282828

161616666

111333

101010

212121

222222111111

232323121212

444555

151515272727

262626141414

131313242424

252525

Clean air intake duct (dual layer)US Class 8 Truck

• High temp resistance • Co-extrusion blow moldable w/ PA • Replaced Santoprene//PP (melted)

NylabondTM 7091

NylabondTM 7091 Polyamide NylabondTM 7091Polyamide

Page 3: THERMOPLASTIC LASTOMERS NYLABONDTM 7091...THERMOPLASTIC ELASTOMERS TECHNICAL BRIEF NYLABONDTM 7091 NylabondTM 7091 for Superior Heat and Fluid Resistance • Suitable for a wide range

Product DescriptionNylabondTM 7091 is a high-performance thermoplastic vulcanizate (TPV) designed to survive long-term exposure to 150 °C (300 °F) air and oil. These grades are ideal for automotive and industrial applications where there is exposure to heat and/or oil.

Product CharacteristicsPHYSICAL FORM: ........................... Free-flow pelletsCOLOR: ............................................ BlackMELT TEMPERATURE, °C (°F): ..... 220 (428)PACKAGING: ................................... 50 lbs (22.7 kg) moisture-barrier bags

NylabondTM 7091Physical Properties, Nominal 100-70B 110-70B 100-80B 131-90B 151-40D

ORIGINAL PHYSICALS Specific Gravity Hardness, Shore A (15 sec delay) Hardness, Shore D (15 sec delay) ISO 37, Die C Tensile Properties UTS, MPa (psi) Elongation at Break, % 100% Modulus, MPa (psi) Young's Modulus, MPa (psi) Flex Modulus (22 °C), MPa (psi) Elastic Modulus, MPa (psi)

1.1478-

7.14 (1035) 178

5.12 (742)12.3 (1780)30 (4351)75 (10878)

1.1178-

6.59 (955)165

4.77 (692)-

40 (5802)45 (6527)

1.1485.5

-

9.18 (1332) 214

5.7 (827)12 (1740)80 (11603)90 (1353)

1.119440

14.48 (2100) 220

7.95 (1153)-

95 (13779)105 (15229)

1.119745

17.65 (2560) 210

13.17 (1910)-

271 (39294)-

COMPRESSION SET, METHOD B - BUTTONS 70 Hrs @ 125 °C, % Set 60 75 60 - -LOW TEMPERATURE PROPERTY Brittle Point, °C (°F) Gehman T10, °C (°F)

-44 (-47)-35 (-31)

-48 (-54)-

-44 (-47)-35 (-31)

-44 (-47)-45 (-49)

-44 (-47)-

AIR AGED PROPERTIES, AFTER 168 Hrs @ 150 °C (300 °F) Tensile Strength, % Change Elongation at Break, % Change Hardness, Point Change

-10-20+3

5-20+5

-10-30+3

-10-35-3

-6-23-2

OIL AGED PROPERTIES, SF 105 OIL168 Hrs @ 150 °C (300 °F) Tensile Strength, % Change Elongation at Break, % Change Hardness, Point Change Volume, % Change

+10-30+3-4

+10-25+3+12

+10-30+4-4

-10-16-4

+2.5

-12-24-1+1

PROPERTY COMPARISON OF VARIOUS GRADES

Page 4: THERMOPLASTIC LASTOMERS NYLABONDTM 7091...THERMOPLASTIC ELASTOMERS TECHNICAL BRIEF NYLABONDTM 7091 NylabondTM 7091 for Superior Heat and Fluid Resistance • Suitable for a wide range

THERMOPLASTIC ELASTOMERS

No information supplied by RTP Company constitutes a warranty regarding product performance or use. Any information regarding performance or use is only offered as suggestion for investigation for use, based upon RTP Company or other customer experience. RTP Company makes no warranties, expressed or implied, concerning the suitability or fitness of any of its products for any particular purpose. It is the responsibility of the customer to determine that the product is safe, lawful and technically suitable for the intended use. The disclosure of information herein is not a license to operate under, or a recommendation to infringe any patents.

RTP COMPANY: YOUR GLOBAL COMPOUNDER OF CUSTOM ENGINEERED THERMOPLASTICS

THERMOPLASTIC ELASTOMERS TECHNICAL BRIEF

NYLABONDTM 7091

Copyright© RTP Company 2020 • 10/2020

NylabondTM 7091

Environment Medium 100-70B 110-70B 100-80B 131-90B 151-40DPetroleum Lubricants (150 °C)

SF 105 OilIRM 903Shell HelixLubrizol OSGear Oils

ʘʘʘʘʘ

ʘʘʘʘʘ

ʘʘʘʘʘ

ʘʘʘʘʘ

ʘʘʘʘʘ

Fuels (22 - 40 °C)

GasolineDieselBiodieselE20E85Fuel C

ʘʘX

X

ʘʘX

X

ʘʘX

X

ʘʘX

X

ʘʘX

X

Hydraulic (150 °C)

Dex IIIDex XIBrake FluidGlycol-based (PPG)ISO 68

ʘʘo ʘ ʘ

ʘʘo ʘ ʘ

ʘʘo ʘ ʘ

ʘʘo ʘ ʘ

ʘʘo ʘ ʘ

Grease (150 °C)

Polyrex EP 2Optitemp® XBT 1 LFRheoGel TEK676

ʘʘʘ

ʘʘʘ

ʘʘʘ

ʘʘʘ

ʘʘʘ

Aqueous (100 °C)

WaterpH 1 NitricpH 1 SulfuricConc. SulfuricBlow-by condensate50:50 GlycolSalt Spray (CaCl2)Salt Spray (ZnCl)

o o X ʘ o ʘ ʘ

o

X o ʘ ʘ

o

o

Xʘo ʘ ʘ

ʘʘo X ʘ ʘ ʘ ʘ

ʘʘo X ʘ ʘ ʘ ʘ

Solvents (22 °C)

MEKAcetonen-Heptanen-Octane (fuel A)

X

X

X

X

X

X

X

X

o

X

X

o

Alcohols (22 °C)

MethanolEthanolIPA

o o

o o

LEGEND ʘ : Good long exposure o : Short term immersion and splash contact : Splash contact/use caution X : Not recommended

CHEMICAL RESISTANCE SUMMARY

Optitemp is a registered trademark of Castrol Industrial North America Inc.