Kevlar® AP :

Advanced Performance Solution For Hose / Belts / Tires

Presenter :Narendra KajaleTechnical Sales Manager – Kevlar® / Nomex®DuPont Protection Technology (DPT)E I DuPont India Pvt Limited, Mumbai

KEVLAR® is a registered trademark of E. I. du Pont de Nemours and Company

IRE2011

Chennai, India

January 20, 2011

IndexIndex

1.1. What is Kevlar(R) AP?What is Kevlar(R) AP?

2.2. Advantage Kevlar(R) AP : HosesAdvantage Kevlar(R) AP : Hoses

3.3. Advantage Kevlar(R) AP : TyresAdvantage Kevlar(R) AP : Tyres

4.4. Advantage Kevlar(R) AP : BeltsAdvantage Kevlar(R) AP : Belts

1.1. What is Kevlar(R) AP?What is Kevlar(R) AP?

Advantage Kevlar(R) AP : HosesAdvantage Kevlar(R) AP : Hoses

Uses less Qty of Kevlar®

Improved asthetic Appearance

Kevlar® AP Offerings for Automotive Hose

750d 1500d1000d

Deniers

+-oK119

oo+K29AP

oooK29

Elongation%

Modulusgpd

Tenacitygpd

Family

Properties

New Products: Kevlar® 29 Advanced Performance

Commercial

More Kevlar® AP products will be introduced in the future and we look forward to working with

customers to meet specific needs of the trade

Value of Kevlar® AP : Upto 20% Yarn Saving for Similar Performance possible

17%0.8020.9682”

19%0.6130.7601 ½”

21%0.3610.4561”

21%0.3020.383¾”

Yarn Weight Savings (%)

Est. Wt. / 100ft Hose *

Est. Wt. / 100ft Hose *Hose Diameter

KEVLAR®750d 29AP

KEVLAR®1000d 29

ESTIMATED 750 DENIER K29AP WEIGHT SAVINGS vs. 1000 DENIER K29 (KNITTED HOSE of same BP)

* We advise that product performance be verified in each specific case

KEVLAR® 29AP vs. Standard KEVLAR® 29 • Up to a 15% increase in tenacity at equal modulus

• 750d K29 AP offers equal burst pressure using 15-20% less material than 1000d K29 in knitted hose

• Reduced yarn profile with light denier enables possible reductions of cover thickness & improves aesthetic performance of hose

KEVLAR® 29AP vs. Standard KEVLAR® 29 • Up to a 15% increase in tenacity at equal modulus

• 750d K29 AP offers equal burst pressure using 15-20% less material than 1000d K29 in knitted hose

• Reduced yarn profile with light denier enables possible reductions of cover thickness & improves aesthetic performance of hose

KEVLAR® 29AP vs Standard KEVLAR® 29• Similar coverage of tube by yarn

• Potential improvement in adhesion ratings with hoses re-designed with Kevlar® 29AP

• Light denier offers the potential to reduce cover thickness & improves hose appearance• Up to 5% reduction in rubber content of the hose is possible by using 750 denier Kevlar® 29AP

KEVLAR® 29AP vs Standard KEVLAR® 29• Similar coverage of tube by yarn

• Potential improvement in adhesion ratings with hoses re-designed with Kevlar® 29AP

• Light denier offers the potential to reduce cover thickness & improves hose appearance• Up to 5% reduction in rubber content of the hose is possible by using 750 denier Kevlar® 29AP

IMPROVED APPERANCE WITH LIGHT DENIER

Additional Value: Improved Aesthetic Appearance

Light Denier

RE-DESIGNED HOSE WITH KEVLAR® 29AP HAS SIMILAR COVERAGE

Additional Value: Upto 20% Improvement in Fatigue Performance

KEVLAR® 29AP vs. Standard KEVLAR® 29• The light denier advantage:

– Hoses reinforced with light denier Kevlar® retain greater % burst pressure after pressure-vibration-temperature (PVT) impulse tests than hoses reinforced with heavier 1000 and 1500 denier K29 when knitted.

• Kevlar® 29AP shows greater strength retention after bending fatigue than standard Kevlar®K29

KEVLAR® 29AP vs. Standard KEVLAR® 29• The light denier advantage:

– Hoses reinforced with light denier Kevlar® retain greater % burst pressure after pressure-vibration-temperature (PVT) impulse tests than hoses reinforced with heavier 1000 and 1500 denier K29 when knitted.

• Kevlar® 29AP shows greater strength retention after bending fatigue than standard Kevlar®K29

Light Denier

1000d K29

Strength Retention After Scott-Flex Test ASTM D430-06

1.26" Diameter Pulley

K29

K29

K29

K29

AP

K29

AP

K29

AP

0%

20%

40%

60%

80%

100%

2000 3000 4000

Scott Flex Cycles

Ret

aine

d St

reng

th

49%4261500/1 Kevlar®29

60%2881000/1 Kevlar®29

73%195750/1 Kevlar® 29 AP

Burst Pressure Retention after

PVT, %

Predicted initial burst pressure

before PVT (psi)

Sample(Denier/plies)

BURST PRESSURE AFTER IMPULSE*

Test: impulse pressure at 15% of initial burst at 20 cyc/min for 100,000 cycles. EG Fluid temp = 266 °F. Chamber Temp = 266 °F. Vibration = ±20 mm.

IMPROVED FATIGUE PERFORMANCE*

* We advise that product performance be verified in each specific case

Advantage Kevlar(R) AP : TyresAdvantage Kevlar(R) AP : Tyres

Lighter

Less Rubber

More KM

1

2

3

Saving Weight

Saving Raw Material

Higher Life

Light Decitex Kevlar® - Nylon Hybrid CordsLight decitex Kevlar® - nylon hybrid cords can provide the same advantages as homogenous light decitex cords• Reduced ply thickness

• Reduced material consumption

• Reduced weight

• Improved durability

• Increased uniformity

Kordsa Global and DuPont are jointly developing and commercializing new designs of Kevlar®/Nylon hybrid constructions to address performance challenges in tire applications.

Light decitex hybrid cords also exhibit the same benefits in fatigue performance as larger hybrid cords by providing a significant improvement in resistance to compressive fatigue

Hybrid CordsHybrids Engineering cord properties by combining different modulus materials

Light Decitex Hybrid Scott Flex Testing : No Significant drop in Strength seen with hybrid cords

Scott Flex (8.825 cN/tex per cord, 19mm Pulley)

0.0

20.0

40.0

60.0

80.0

100.0

120.0

50,000 100,000 300,000 460,000

Cycles

Ret

aine

d St

reng

th (%

)

670/1 + 690/1 nylon670/1/2

Advantage Kevlar(R) AP : BeltsAdvantage Kevlar(R) AP : Belts

1. Upto 30% Improvement in Fatigue Performance2. Upto 20% Stronger Belts3. Retains Dimensions Throut Life

Light Decitex Yarn – Up to 30% Improvement in Fatigue Performance

Ret

aine

d St

reng

th (%

)

K29 1100/1/2 LM 940/1/2 LM 670/1/3 HT 940/1/2 HT 670/1/3

50.3

71.5 73.4 72.9

66.8

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

Ret

aine

d S

tren

gth

(%)

19mm Pulley, 1,000 cycles

Scott Flex Testing

Light Decitex Yarn – Superior Durability

Initial BRK. STR. (N)

Fatigued BRK. STR. (N)K29 1100/1/2

LM 940/1/2

LM 670/1/3

HT 940/1/2

HT 670/1/3

0.0

50.0

100.0

150.0

200.0

250.0

300.0

350.0

BR

K. S

TR. (

N)

K29 1100/1/2 339.8 170.9

LM 940/1/2 315.8 225.8LM 670/1/3 343.8 252.4

HT 940/1/2 329.2 239.9

HT 670/1/3 347.8 232.3

Initial BRK. STR. (N) Fatigued BRK. STR. (N)

Scott Flex19mm Pulley

1,000 cycles

Contact : Narendra KajaleManager – Technical Sales (Kevlar® / Nomex®)E I DuPont India Pvt Limited1001-1012, Meadows, Sahar Plaza Complex, Andheri Kurla Road, J B Nagar, Andheri E Mumbai – 400059

Board : 91 22 67515000Direct : 91 22 67515134Email : narendra.kajale@ind.dupont.com