WHY
THE
R Y T O N®P P S
NEEDS
OF
AUTOMOTIVE
Chevron Phillips Chemical Co. LP
10001 Six Pines Dr.
The Woodlands, Texas 77380
T: 832-813-4100
F: 832-813-4440
www.rytonpps.com
MEETS
ENGINEERS
INTRODUCTION
TABLE OF CONTENTS
INTRODUCTION
3
BRAKE SYSTEMS
5
COOLANT SYSTEMS
8
FUEL SYSTEMS
14
ELECTRICAL SYSTEMS
18
// TABLE OF CONTENTS
Cost reduction continues to lead the list of challenges facing automotive
engineers, but designability and emissions regulation issues are quickly rising, according to automotive engineers responding to a recent survey. Fuel
economy and safety remain in the top five challenges, increasing in urgency
over last year. These are the main reasons why automotive engineers explore
the possibilities of high-end engineering plastics such as Ryton® PPS.
PPS compounds have a unique combination of properties:
• A remarkable combination of both long-term and short-term
thermal stability.
• Exceptionally high modulus and creep resistance.
• Outstanding resistance to a wide variety of aggressive
chemical environments.
• Precision molding to tight tolerances with high reproducibility.
• Inherent non-flammability without flame retardant additives.
• Dielectric and insulating properties, stable over a wide range of
conditions.
INTRODUCTION // 3
INTRODUCTION
TABLE OF CONTENTS
INTRODUCTION
3
BRAKE SYSTEMS
5
COOLANT SYSTEMS
8
FUEL SYSTEMS
14
ELECTRICAL SYSTEMS
18
// TABLE OF CONTENTS
Cost reduction continues to lead the list of challenges facing automotive
engineers, but designability and emissions regulation issues are quickly rising, according to automotive engineers responding to a recent survey. Fuel
economy and safety remain in the top five challenges, increasing in urgency
over last year. These are the main reasons why automotive engineers explore
the possibilities of high-end engineering plastics such as Ryton® PPS.
PPS compounds have a unique combination of properties:
• A remarkable combination of both long-term and short-term
thermal stability.
• Exceptionally high modulus and creep resistance.
• Outstanding resistance to a wide variety of aggressive
chemical environments.
• Precision molding to tight tolerances with high reproducibility.
• Inherent non-flammability without flame retardant additives.
• Dielectric and insulating properties, stable over a wide range of
conditions.
INTRODUCTION // 3
HDT
RTI
Ryton® PPS offers:
• Resistance to brake fluids.
• Weight reduction.
• Reduced manufacturing cost.
• Corrosion resistance.
For the ABS brake pistons on the picture, Ryton® BR111
PPS outperformed competitive glass mineral filled PPS
types and PPA.
Temperature Resistance of various Engineering Plastics
// 4 INTRODUCTION
Being the most important safety device of a vehicle, the
requirements for brake system devices are extremely
high. They include high temperature resistance, long term
chemical resistance, high stiffness , strength, low creep,
dimensional stability and low CLTE. Typical Ryton® PPS
applications in brake systems are ABS motor components, ABS brake pistons, valve bodies, sensors and
vacuum pump rotors and blades.
FLEXURAL
MODULUS (GPa)
This unique combination of properties make Ryton® PPS
an ideal choice for automotive parts exposed to high temperatures, automotive fluids, or mechanical stress. Typical
applications include brake systems, coolant systems,
electrical/electronic devices and fuel systems. Ryton®
PPS is a lighter weight alternative to metals and is resistant to corrosion by salts and automotive fluids. The
ability to mold complex parts to tight tolerances and insert
molding capability accommodate multiple component
integration. Read on and discover how Ryton® PPS can
help you meet your fuel economy requirements, system
integration goals, and cost targets.
BRAKE SYSTEMS
TEMP. (°C)
INTRODUCTION
Ryton® BR111 PPS
Ryton® R-7-120 PPS
Ryton® R-4-200 PPS
PEI
PES
TEMP. (°C)
The graph above compares the flexural modulus of different Ryton® PPS
compounds and other engineering polymers. It demonstrates that Ryton®
PPS retains its high strength and stiffness over a wide temperature range.
BRAKE SYSTEMS //5
HDT
RTI
Ryton® PPS offers:
• Resistance to brake fluids.
• Weight reduction.
• Reduced manufacturing cost.
• Corrosion resistance.
For the ABS brake pistons on the picture, Ryton® BR111
PPS outperformed competitive glass mineral filled PPS
types and PPA.
Temperature Resistance of various Engineering Plastics
// 4 INTRODUCTION
Being the most important safety device of a vehicle, the
requirements for brake system devices are extremely
high. They include high temperature resistance, long term
chemical resistance, high stiffness , strength, low creep,
dimensional stability and low CLTE. Typical Ryton® PPS
applications in brake systems are ABS motor components, ABS brake pistons, valve bodies, sensors and
vacuum pump rotors and blades.
FLEXURAL
MODULUS (GPa)
This unique combination of properties make Ryton® PPS
an ideal choice for automotive parts exposed to high temperatures, automotive fluids, or mechanical stress. Typical
applications include brake systems, coolant systems,
electrical/electronic devices and fuel systems. Ryton®
PPS is a lighter weight alternative to metals and is resistant to corrosion by salts and automotive fluids. The
ability to mold complex parts to tight tolerances and insert
molding capability accommodate multiple component
integration. Read on and discover how Ryton® PPS can
help you meet your fuel economy requirements, system
integration goals, and cost targets.
BRAKE SYSTEMS
TEMP. (°C)
INTRODUCTION
Ryton® BR111 PPS
Ryton® R-7-120 PPS
Ryton® R-4-200 PPS
PEI
PES
TEMP. (°C)
The graph above compares the flexural modulus of different Ryton® PPS
compounds and other engineering polymers. It demonstrates that Ryton®
PPS retains its high strength and stiffness over a wide temperature range.
BRAKE SYSTEMS //5
BRAKE SYSTEMS
Together with the low moisture pick up, the low coefficient
of linear thermal expansion (CLTE) is an important contributor to the dimensional stability.
STRAIN (%)
Other typical Ryton® BR111 PPS applications are brake
valve bodies. Ryton® BR111 PPS is material of choice
because of the excellent chemical resistance versus
automotive fluids and dimensional stability.
Recommended Ryton® PPS Products for use in braking systems:
23°C/35 MPa
65°C/35 MPa
120°C/35MPa
23°C/70 MPa
65°C/70 MPa
120°C/70 MPa
For parts requiring improved wear resistance, PTFE filled
Ryton® compounds are available. Ryton® BR42B PPS
was selected for the vacuum pump vanes in the picture
because of the improved wear resistance, excellent
temperature resistance and dimensional stability in combination with good flexural fatigue properties.
Products
Key Features
R-4-200NA & R-4-200BL
Strength, Toughness, Design Flexibility
BR111 & BR111BL
Creep Resistance, Dimensional Stability
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
XK2240 & XK2340
High Impact Strength, Precision Molding
BR42B & BR42C
Low Friction, High Wear Resistance
TIME (h)
Dimensional stability: Tensile creep of Ryton® BR111 PPS
// 6 BRAKE SYSTEMS
Ryton® BR111 PPS application: brake valve body.
Ryton® BR42B PPS used in vacuum pump vanes.
BRAKE SYSTEMS //7
BRAKE SYSTEMS
Together with the low moisture pick up, the low coefficient
of linear thermal expansion (CLTE) is an important contributor to the dimensional stability.
STRAIN (%)
Other typical Ryton® BR111 PPS applications are brake
valve bodies. Ryton® BR111 PPS is material of choice
because of the excellent chemical resistance versus
automotive fluids and dimensional stability.
Recommended Ryton® PPS Products for use in braking systems:
23°C/35 MPa
65°C/35 MPa
120°C/35MPa
23°C/70 MPa
65°C/70 MPa
120°C/70 MPa
For parts requiring improved wear resistance, PTFE filled
Ryton® compounds are available. Ryton® BR42B PPS
was selected for the vacuum pump vanes in the picture
because of the improved wear resistance, excellent
temperature resistance and dimensional stability in combination with good flexural fatigue properties.
Products
Key Features
R-4-200NA & R-4-200BL
Strength, Toughness, Design Flexibility
BR111 & BR111BL
Creep Resistance, Dimensional Stability
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
XK2240 & XK2340
High Impact Strength, Precision Molding
BR42B & BR42C
Low Friction, High Wear Resistance
TIME (h)
Dimensional stability: Tensile creep of Ryton® BR111 PPS
// 6 BRAKE SYSTEMS
Ryton® BR111 PPS application: brake valve body.
Ryton® BR42B PPS used in vacuum pump vanes.
BRAKE SYSTEMS //7
COOLANT SYSTEMS
It might seem surprising that one of the most aggressive
environments for plastics is hot water.
In some cases (e.g. PA and PPA alike materials), the hot
water attacks the polymer as such eventually leading to
a complete loss of mechanical properties. Very often, this
goes hand in hand with strong swelling effects.
To support customers in the development of applications
in contact with coolants, the European Ryton®
International Technical Center (ITC) heavily invested in
state of the art test equipment, including pressure vessels for aging tests. The temperature and pressure in
these vessels are continuously monitored and registered.
The complete system is regularly calibrated by an independent lab and the whole set up has been subjected to
different audits from Tier 1 suppliers. As a result, some
of these system suppliers accept data generated at the
Ryton® ITC as if they were generated in their own labs.
Because of the close collaboration between the Ryton®
ITC and the leading coolant manufacturers, Chevron
Phillips Chemical can anticipate on new coolants before
they even come on the market.
DIMENSIONAL CHANGE
For polymers that have a good resistance versus hot water,
water does not attack or dissolve the polymer, but it may
seep down the interfaces between the polymer matrix
and the glass fiber reinforcement and break down molecular linkages between the polymer and the glass. When
the adhesion between the polymer and the glass fiber
reinforcement is compromised, the compound will lose
a significant degree of strength.
Width
Thickness
Although differences in filler and additive systems can
affect resistance to engine coolants, Ryton® PPS compounds are generally very resistant to glycol-based and
silicone containing coolants, even at elevated temperatures. Ryton® R-4-220 PPS and BR111-S PPS have been
specially formulated for enhanced resistance to the detrimental effects of water at elevated temperatures and
therefore tend to retain a greater degree of mechanical
strength over long-term exposure to high temperature
engine coolants, especially the more aggressive new
“long-life” (OAT) coolants.
Weight
After 16 weeks in water at 140°C
8 // COOLANT SYSTEMS
COOLANT SYSTEMS // 9
COOLANT SYSTEMS
It might seem surprising that one of the most aggressive
environments for plastics is hot water.
In some cases (e.g. PA and PPA alike materials), the hot
water attacks the polymer as such eventually leading to
a complete loss of mechanical properties. Very often, this
goes hand in hand with strong swelling effects.
To support customers in the development of applications
in contact with coolants, the European Ryton®
International Technical Center (ITC) heavily invested in
state of the art test equipment, including pressure vessels for aging tests. The temperature and pressure in
these vessels are continuously monitored and registered.
The complete system is regularly calibrated by an independent lab and the whole set up has been subjected to
different audits from Tier 1 suppliers. As a result, some
of these system suppliers accept data generated at the
Ryton® ITC as if they were generated in their own labs.
Because of the close collaboration between the Ryton®
ITC and the leading coolant manufacturers, Chevron
Phillips Chemical can anticipate on new coolants before
they even come on the market.
DIMENSIONAL CHANGE
For polymers that have a good resistance versus hot water,
water does not attack or dissolve the polymer, but it may
seep down the interfaces between the polymer matrix
and the glass fiber reinforcement and break down molecular linkages between the polymer and the glass. When
the adhesion between the polymer and the glass fiber
reinforcement is compromised, the compound will lose
a significant degree of strength.
Width
Thickness
Although differences in filler and additive systems can
affect resistance to engine coolants, Ryton® PPS compounds are generally very resistant to glycol-based and
silicone containing coolants, even at elevated temperatures. Ryton® R-4-220 PPS and BR111-S PPS have been
specially formulated for enhanced resistance to the detrimental effects of water at elevated temperatures and
therefore tend to retain a greater degree of mechanical
strength over long-term exposure to high temperature
engine coolants, especially the more aggressive new
“long-life” (OAT) coolants.
Weight
After 16 weeks in water at 140°C
8 // COOLANT SYSTEMS
COOLANT SYSTEMS // 9
FLEXURAL
MODULUS (GPa)
www.intelligentcooling.com
(MPa)
The graph shows the evolution of tensile strength of various engineering polymers after aging in Glysantin G-05
at 140°C. The overall resistance of PPS to engine coolants
is good, with the BR111-S and R-4-220 clearly outperforming the competitive 40% GF PPS. The hydrolytic stable PPA suffers from severe chemical attack and has less
than 20% of the initial tensile strength left after 2000 h.
Tests have been carried out up to 6000 hours, confirming
the efficiency of the technology employed in Ryton® R-4220 PPS and Ryton® BR111-S PPS.
TENSILE STRENGTH
COOLANT SYSTEMS
This graph shows the evolution of the flexural modulus over
time. Again, the overall performance of PPS is good, with
Ryton® R-4-220NA outperforming the competitive 45% GF
PPS and 45% GF HTN products. PPA and SPS both loose
most of their rigidity after 111 days.
Ryton® R-4-220NA PPS
Ryton® BR111-S PPS
40% GF PPS
40% GF PPA
R-4-220NA
PPS 45% GF
PPA 45% GF
SPS 40% GF
HTN 45% GF
18
Water pump cover Ryton® R-4-200
TIME (h)
Thermostat housing Ryton® R-4-220
Aging in Glysantin G05 at 140°C (50% aq sol)
Tensile strength, ISO 527
10 // COOLANT SYSTEMS
0 Days
7 Days
40 Days
111 Days
Aging for Resins in 100% Virgin Ethylene Glycol
at 127°C (Long Life)
COOLANT SYSTEMS // 11
FLEXURAL
MODULUS (GPa)
www.intelligentcooling.com
(MPa)
The graph shows the evolution of tensile strength of various engineering polymers after aging in Glysantin G-05
at 140°C. The overall resistance of PPS to engine coolants
is good, with the BR111-S and R-4-220 clearly outperforming the competitive 40% GF PPS. The hydrolytic stable PPA suffers from severe chemical attack and has less
than 20% of the initial tensile strength left after 2000 h.
Tests have been carried out up to 6000 hours, confirming
the efficiency of the technology employed in Ryton® R-4220 PPS and Ryton® BR111-S PPS.
TENSILE STRENGTH
COOLANT SYSTEMS
This graph shows the evolution of the flexural modulus over
time. Again, the overall performance of PPS is good, with
Ryton® R-4-220NA outperforming the competitive 45% GF
PPS and 45% GF HTN products. PPA and SPS both loose
most of their rigidity after 111 days.
Ryton® R-4-220NA PPS
Ryton® BR111-S PPS
40% GF PPS
40% GF PPA
R-4-220NA
PPS 45% GF
PPA 45% GF
SPS 40% GF
HTN 45% GF
18
Water pump cover Ryton® R-4-200
TIME (h)
Thermostat housing Ryton® R-4-220
Aging in Glysantin G05 at 140°C (50% aq sol)
Tensile strength, ISO 527
10 // COOLANT SYSTEMS
0 Days
7 Days
40 Days
111 Days
Aging for Resins in 100% Virgin Ethylene Glycol
at 127°C (Long Life)
COOLANT SYSTEMS // 11
COOLANT SYSTEMS
Recommended Ryton® PPS Products for use in coolant systems:
Ryton® PPS offers:
• Resistance to engine coolants.
• Precision molding.
• Weight reduction.
• Reduced manufacturing cost.
Typical applications for Ryton® PPS in coolant systems
include outlets / inlets, thermostat housings, water pump
impellers, heater core end caps and water control valves.
Heater Core End Cap (Ryton® R-4-220 PPS)
// 12 COOLANT SYSTEMS
Products
Key Features
R-4-220NA & R-4-220BL
Exceptional Resistance to Long-Life (OAT) Coolant
R-4-200NA & R-4-200BL
Strength, Toughness, Design Flexibility
BR111 & BR111BL
Creep Resistance, Dimensional Stability
BR111-S & BR111BL-S
Exceptional Resistance to Long-Life (OAT) Coolant
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
Oil cooler thermostat housing
(Ryton® R-4-220 PPS)
COOLANT SYSTEMS //13
COOLANT SYSTEMS
Recommended Ryton® PPS Products for use in coolant systems:
Ryton® PPS offers:
• Resistance to engine coolants.
• Precision molding.
• Weight reduction.
• Reduced manufacturing cost.
Typical applications for Ryton® PPS in coolant systems
include outlets / inlets, thermostat housings, water pump
impellers, heater core end caps and water control valves.
Heater Core End Cap (Ryton® R-4-220 PPS)
// 12 COOLANT SYSTEMS
Products
Key Features
R-4-220NA & R-4-220BL
Exceptional Resistance to Long-Life (OAT) Coolant
R-4-200NA & R-4-200BL
Strength, Toughness, Design Flexibility
BR111 & BR111BL
Creep Resistance, Dimensional Stability
BR111-S & BR111BL-S
Exceptional Resistance to Long-Life (OAT) Coolant
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
Oil cooler thermostat housing
(Ryton® R-4-220 PPS)
COOLANT SYSTEMS //13
Besides the combination of chemical resistance, thermal
stability and dimensional stability, Ryton® PPS also offers
a very low permeability. With environmental regulations
becoming more and more stringent, designers consider
Ryton® PPS as an excellent candidate for use in fuel
systems.
The table summarizes results from tests made on a 0.2 mm
film. Testing was done according to an internal standard of
a major American carmaker. The test fuel was a mix of
isooctane, toluene & ethanol, the temperature 40°C. There
was no driving pressure. Despite the use of sophisticated
detection equipment, the permeability of PPS was below
detection limit.
Permeability, g x mm/m 2 .day
PA 6,6
0.45
PA 12
28
HDPE
69
EVOH
0.000006
PPS
Below detection limit
This graph shows the exceptional performance of Ryton®
PPS after prolonged immersion in M30 fuel. Test data
after immersion in the more aggressive M85 fuel
(85% methanol) show a similar result. Besides the good
retention of mechanical properties, Ryton® PPS shows
very little change in dimensions. This is a very important
consideration for throttle body and fuel pump impeller
applications.
% RETENTION
FUEL SYSTEMS
Ryton® R-4-200 PPS
PA66 40% GF
PA6 50% GF
PA66 High Temp 35% GF
The Ryton® International Technical Center has an
extensive list of automotive fluids with our best general
re-commendations regarding their compatibility with
Ryton® PPS.
Immersion in M30 Fuel at 60°C, 2000 Hrs
// 14 FUEL SYSTEMS
Fuel pump impellers
Ryton® R7 PPS
FUEL SYSTEMS //15
Besides the combination of chemical resistance, thermal
stability and dimensional stability, Ryton® PPS also offers
a very low permeability. With environmental regulations
becoming more and more stringent, designers consider
Ryton® PPS as an excellent candidate for use in fuel
systems.
The table summarizes results from tests made on a 0.2 mm
film. Testing was done according to an internal standard of
a major American carmaker. The test fuel was a mix of
isooctane, toluene & ethanol, the temperature 40°C. There
was no driving pressure. Despite the use of sophisticated
detection equipment, the permeability of PPS was below
detection limit.
Permeability, g x mm/m 2 .day
PA 6,6
0.45
PA 12
28
HDPE
69
EVOH
0.000006
PPS
Below detection limit
This graph shows the exceptional performance of Ryton®
PPS after prolonged immersion in M30 fuel. Test data
after immersion in the more aggressive M85 fuel
(85% methanol) show a similar result. Besides the good
retention of mechanical properties, Ryton® PPS shows
very little change in dimensions. This is a very important
consideration for throttle body and fuel pump impeller
applications.
% RETENTION
FUEL SYSTEMS
Ryton® R-4-200 PPS
PA66 40% GF
PA6 50% GF
PA66 High Temp 35% GF
The Ryton® International Technical Center has an
extensive list of automotive fluids with our best general
re-commendations regarding their compatibility with
Ryton® PPS.
Immersion in M30 Fuel at 60°C, 2000 Hrs
// 14 FUEL SYSTEMS
Fuel pump impellers
Ryton® R7 PPS
FUEL SYSTEMS //15
FUEL SYSTEMS
Recommended Ryton® PPS Products for use in fuel systems:
Ryton® PPS offers:
• Resistance to fuels and flex fuels.
• Low permeation to fuels.
• Weight reduction.
• Reduced manufacturing cost.
Current developments in fuel applications include fuel
cell applications and fuel lines. For the latter, 2 new
extrusion grades have been developed that offer high
ductility and elongation combined with the usual Ryton®
PPS properties.
Ford throttle body/deactivator (FMRC), length 420 mm
Ryton® R-4-02XT PPS
// 16 FUEL SYSTEMS
Products
Key Features
R-4-200NA & R-4-200BL
Strength, Toughness, Design Flexibility
BR111 & BR111BL
Creep Resistance, High Modulus
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
XK2240 & XK2340
High Impact Strength, Precision Molding
BR42B & BR42C
Low Friction, High Wear Resistance
Fuel pump brush holders
Ryton® R-7-120 PPS
FUEL SYSTEMS //17
FUEL SYSTEMS
Recommended Ryton® PPS Products for use in fuel systems:
Ryton® PPS offers:
• Resistance to fuels and flex fuels.
• Low permeation to fuels.
• Weight reduction.
• Reduced manufacturing cost.
Current developments in fuel applications include fuel
cell applications and fuel lines. For the latter, 2 new
extrusion grades have been developed that offer high
ductility and elongation combined with the usual Ryton®
PPS properties.
Ford throttle body/deactivator (FMRC), length 420 mm
Ryton® R-4-02XT PPS
// 16 FUEL SYSTEMS
Products
Key Features
R-4-200NA & R-4-200BL
Strength, Toughness, Design Flexibility
BR111 & BR111BL
Creep Resistance, High Modulus
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
XK2240 & XK2340
High Impact Strength, Precision Molding
BR42B & BR42C
Low Friction, High Wear Resistance
Fuel pump brush holders
Ryton® R-7-120 PPS
FUEL SYSTEMS //17
Ryton® R-4-200 PPS
Ryton® BR111 PPS
In order to avoid costly deflashing operations, automotive designers require connector materials that allow trouble free pin insertion without secondary operations.
Chevron Phillips Chemical has developed compounds
that offer excellent flow combined with very little micro
flash.
Xtel® XK2340 PPS
The US council of Automotive Research developed a classification system for the maximum use temperature of
connector materials. Materials are subjected to a humidity/temperature cycling test (a sequence of cold dry air
followed by hot humid air and back). After 80 cycles,
property retention is evaluated.
Brush holders Ryton® R-7-120
% RETENTION
Typical requirements for automotive electrical systems
include chemical resistance, dimensional stability, tight
tolerances and high heat capability (in service and during assembly).
% RETENTION
ELECTRICAL SYSTEMS
Ryton® R-4-200 PPS
Ryton® BR111 PPS
Xtel® XK2340 PPS
Alternator components such as brush holders and diode
bridges, are exposed to the ever-increasing temperatures
under the hood. The excellent thermal resistance of
Ryton® PPS and Xtel® PPS compounds make them the
material of choice for these applications.
Diode bridge Ryton® BR111 PPS
Temperature/Humidity Cycling (80 cycles, 175°C)
// 18 ELECTRICAL SYSTEMS
Thermal Aging 175°C, 1008 h
ELECTRICAL SYSTEMS //19
Ryton® R-4-200 PPS
Ryton® BR111 PPS
In order to avoid costly deflashing operations, automotive designers require connector materials that allow trouble free pin insertion without secondary operations.
Chevron Phillips Chemical has developed compounds
that offer excellent flow combined with very little micro
flash.
Xtel® XK2340 PPS
The US council of Automotive Research developed a classification system for the maximum use temperature of
connector materials. Materials are subjected to a humidity/temperature cycling test (a sequence of cold dry air
followed by hot humid air and back). After 80 cycles,
property retention is evaluated.
Brush holders Ryton® R-7-120
% RETENTION
Typical requirements for automotive electrical systems
include chemical resistance, dimensional stability, tight
tolerances and high heat capability (in service and during assembly).
% RETENTION
ELECTRICAL SYSTEMS
Ryton® R-4-200 PPS
Ryton® BR111 PPS
Xtel® XK2340 PPS
Alternator components such as brush holders and diode
bridges, are exposed to the ever-increasing temperatures
under the hood. The excellent thermal resistance of
Ryton® PPS and Xtel® PPS compounds make them the
material of choice for these applications.
Diode bridge Ryton® BR111 PPS
Temperature/Humidity Cycling (80 cycles, 175°C)
// 18 ELECTRICAL SYSTEMS
Thermal Aging 175°C, 1008 h
ELECTRICAL SYSTEMS //19
ELECTRICAL SYSTEMS
TENSILE
STRENGTH (MPa)
Ryton® PPS offers:
• Dimensional stability up to 260°C.
• Precision molding.
• Insert molding.
• Stable electrical properties.
Recommended Ryton® PPS Products for use in electrical systems:
Ryton® BR111BL PPS
Ryton® R-4-200 BL PPS
Xtel® XK2340 PPS
Also, the headlamp socket manufacturers recognize the
benefits of Ryton® PPS. By using compounds developed
especially for this industry, significant production cost
reductions were realized.
Tensile Strength (ISO 527) after Heat Aging 165°C
// 20 ELECTRICAL SYSTEMS
Products
Key Features
R-4-230NA & R-4-230BL
Low Flash, High Flow, Design Flexibility
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
R10-110BL
Lower cost, Dimensional Stability
XK2240 & XK2340
High Impact Strength, Precision Molding
Headlamp socket
Ryton® PPS
ELECTRICAL SYSTEMS //21
ELECTRICAL SYSTEMS
TENSILE
STRENGTH (MPa)
Ryton® PPS offers:
• Dimensional stability up to 260°C.
• Precision molding.
• Insert molding.
• Stable electrical properties.
Recommended Ryton® PPS Products for use in electrical systems:
Ryton® BR111BL PPS
Ryton® R-4-200 BL PPS
Xtel® XK2340 PPS
Also, the headlamp socket manufacturers recognize the
benefits of Ryton® PPS. By using compounds developed
especially for this industry, significant production cost
reductions were realized.
Tensile Strength (ISO 527) after Heat Aging 165°C
// 20 ELECTRICAL SYSTEMS
Products
Key Features
R-4-230NA & R-4-230BL
Low Flash, High Flow, Design Flexibility
R-7-120NA & R-7-120BL
Dimensional Stability, Lower Cost
R10-110BL
Lower cost, Dimensional Stability
XK2240 & XK2340
High Impact Strength, Precision Molding
Headlamp socket
Ryton® PPS
ELECTRICAL SYSTEMS //21
Chevron Phillips Chemical Co. LP
10001 Six Pines Dr.
The Woodlands, Texas 77380
T: 832-813-4100
F: 832-813-4440
www.rytonpps.com
RYTON® INTERNATIONAL TECHNICAL CENTER //
Chevron Phillips Chemical Co. LP
10001 Six Pines Dr.
The Woodlands, Texas 77380
T: 832-813-4100
F: 832-813-4440
www.rytonpps.com
RYTON® INTERNATIONAL TECHNICAL CENTER //
WHY
THE
R Y T O N®P P S
NEEDS
OF
AUTOMOTIVE
Chevron Phillips Chemical Co. LP
10001 Six Pines Dr.
The Woodlands, Texas 77380
T: 832-813-4100
F: 832-813-4440
www.rytonpps.com
MEETS
ENGINEERS