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HUNTSMAN

Polyurethanes

Samantha Smith

Jay A. Johnston

Auburn Hills Michigan

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Team

The Softer Side ofPolyurea Elastomer

Coatings

Advantages of Spray Polyurea

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-A wide range of physical properties is possible (i.e. 4000 psi / 260% / 590 pli / Shore D 65 3500 psi / 500% / 500 pli / Shore D 48 to 1200 psi / 800% / 200 pli / Shore D 15) -Fast gel and tackfree times (typically 2-25 seconds)-Can walk on coating in 10 minutes-100 % solids formulation possible-Thick film build-Spray applied in the field-Applicable at low temperatures-High productivity per employee (1gallon/min.)-New prepolymers have lower viscosities-Lower processing pressures are possible-No catalyst required-Insensitivity to atmospheric and substrate moisture-Catalyst are not present to promote high temperature decomposition-New primers are available for spray polyurea

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H2N-(CH-CH2-O)n-CH2-CH-NH2

- CH3-H3C

Amine-IsocyanateReaction

OCN-PREPOLYMER-NCO

+

POLYUREA

+

Primary or Secondary Chain Extenders

Optional Additives

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H2N-(CH-CH2-O)n-CH2-CH-NH2

-

CH2-(CH2-CH-O)m-NH2

CH3-

CH-(CH2-CH-O)n-NH2

CH3-

CH2-(CH2-CH-O)o-NH2

CH3-

CH3-H3C

JEFFAMINE ® D-2000 amine

JEFFAMINE T-5000 Amine

Amine TerminatedPolyether

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Amine ChainExtenders

CH2H(C4H9)N N(C4H9)H

UNILINK® 4200 chain extender

DETDA (+isomers)

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Standard PhysicalProperties of Aromatic

Polyurea ElastomerCoatings

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TeamSpray Polyurea

Prepolymers

Prepolymer NCO(%)

Viscosity(cps)

RUBINATE®9009 MDI

15.6 1300

RUBINATE9495 MDI

15.2 366

RUBINATE9480 MDI

15.2 355

RUBINATE9484 MDI

16.0 253

RUBINATE9483 MDI

15.5 350

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TeamB-side Formulation

Component Weight (%)

JEFFAMINED-2000 amine

54.8

JEFFAMINET-5000 amine

9.6

ETHACURE®100 amine

25.4

TiO2 10.2

SilaneA-187

0.9

Processing Parameters Temperature 71C Pressure 2000 psi

OrangePeelEffect

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TeamReactivity of Spray

Polyurea Prepolymers

1.5

45 4.5

665

87

9

0

2

4

6

8

10

RUBINATE9009 MDI

RUBINATE9495 MDI

RUBINATE9480 MDI

RUBINATE9484 MDI

RUBINATE9483 MDI

Seco

nds

Gel Tackfree

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TeamHardness of SprayPolyurea Coatings

46

56

47 49 48

0102030405060

RUBINATE9009 MDI

RUBINATE9495 MDI

RUBINATE9480 MDI

RUBINATE9484 MDI

RUBINATE9483 MDI

Shor

e D

Shore D ASTM D-2240-95

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TeamTensile Strength of Spray

Polyurea Coatings

25683087

33653661

2635

0500

1000150020002500300035004000

RUBINATE9009 MDI

RUBINATE9495 MDI

RUBINATE9480 MDI

RUBINATE9484 MDI

RUBINATE9483 MDI

Tens

ile St

reng

th (p

si)

Tensile StrengthASTM D412-92

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TeamMaximum Elongation ofSpray Polyurea Coatings

164

269

403370 388

050

100150200250300350400450

RUBINATE9009 MDI

RUBINATE9495 MDI

RUBINATE9480 MDI

RUBINATE9484 MDI

RUBINATE9483 MDI

Max

imum

Elon

gatio

n (%

)

ElongationASTM D412-92

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TeamTear Resistance of Spray

Polyurea Coatings

439 470

616661

432

0

100

200

300

400

500

600

700

RUBINATE9009 MDI

RUBINATE9495 MDI

RUBINATE9480 MDI

RUBINATE9484 MDI

RUBINATE9483 MDI

Tear

Res

istan

ce (p

li)

Tear ResistanceASTM D624-91

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TeamSpray Polyurea

Prepolymers

Prepolymer NCO(%)

Viscosity(cps)

RUBINATE9272 MDI

8.5 2500

SUPRASEC®9524 MDI

10 2000

RUBINATE9447 MDI

12.3 1200

RUBINATE9483 MDI

15.5 350

RUBINATE9480 MDI

15.2 355

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TeamB-side Formulations

Isocyanate A B C D E F GRUBINATE9272 MDI

100 90SUPRASEC9524 MDI

100 90RUBINATE9447 MDI

100RUBINATE9483 MDI

100RUBINATE

9480MDI100

JEFFSOL®PC

10 10

JEFFAMINED-2000 amine

74.1 72.8 66.4 68.2 59.8 54.8 54.8

JEFFAMINET-5000 amine

9.9 9.4 8.5 9.1 10.9 9.6 9.6

ETHACURE100

amine

6.13 7.3 13.1 11.4 18.5 25.4 25.4

JEFFAMINED-400 amine

8.9 0 0 0 0 0 0

TIOXIDE®TiO2 TR-90

0 10.5 10.7 11.3 10.9 10.2 10.2

SILQUEST A-187 Silane

0.9 0 0.9 0 0 0.9 0.9

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TeamReactivity of Spray

Polyurea Prepolymers

2518

1020

5 6 5

68

57

27

55

12 9 8

0

20

40

60

80

A B C D E F G

Seco

nds

Gel Tackfree

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TeamHardness of SprayPolyurea Coatings

1115

25

16

36

48 47

0102030405060

A B C D E F G

Shor

e D

Shore D ASTM D-2240-95

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TeamTensile Strength of Spray

Polyurea Coatings

559

1169

1882

601

1881

2635

3365

0500

1000150020002500300035004000

A B C D E F G

Tens

ile S

treng

th (p

si)

Tensile StrengthASTM D412-92

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TeamMaximum Elongation ofSpray Polyurea Coatings

750804

592

315 282388 403

0100200300400500600700800900

A B C D E F G

Max

imum

Elon

gatio

n (%

)

ElongationASTM D412-92

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TeamTear Resistance of Spray

Polyurea Coatings

171 199271

171

316

432

616

0

100

200

300

400

500

600

700

A B C D E F G

Tear

Res

istan

ce (p

li)

Tear ResistanceASTM D624-91

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TeamImpact Resistance of

Spray Polyurea Coatings

20.2 19.9

10.8 10.1 6.8 6.214

40.8

24.2 21.513.6 16.3

0.25 0.25 3.126.46

15.9310.2

01020304050

-40 -20 0 20 40 60Temperature C

Ft-L

b

RUBINATE 9272 MDI RUBINATE 9524 MDI RUBINATE 9480 MDI

ASTM D 3763-93

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ASTM D412-92

0

500

1000

1500

2000

2500

3000

psi

SUPR

ASEC

9524

MDI

RUBI

NATE

9447

MDI

RUBI

NATE

9480

MDI

RUBI

NATE

9009

MDI

SUPR

ASEC

9549

MDI

013721

Sulfuric Acid (25 %) Resistanceof Polyurea Coatings

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ASTM D412-92

0

500

1000

1500

2000

2500

3000

psi

SUPR

ASEC

9524

MDI

RUBI

NATE

9447

MDI

RUBI

NATE

9480

MDI

RUBI

NATE

9009

MDI

SUPR

ASEC

9549

MDI

013721

Nitric Acid (25 %) Resistance of Polyurea Coatings

Conclusions“ACE”

Team

- Softer coatings are prepared with low NCO content prepolymer- Lower hard block content coatings have longer gel and tack free times-Lower hard block content coatings have lower tensile strength and tear resistance-Lower hard block content coatings have greater elongation properties-Lower hard block content coatings have greater impact resistance and flexibility at lower temperatures-Higher hardblock content coatings had better solvent and acid resistance-RUBINATE 9009 MDI and RUBINATE 9549 MDI gave the best overall solvent and acid resistance

Thanks“ACE”

Team

Huntsman Polyurethanes-Samantha Smith-Donna Klaich-John Andrianos-Julie Wilson-Nadatta Green-David Laganella-Jeffrey Smith - spray application

Contact“ACE”

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Dr. Jay A. JohnstonHuntsman Polyurethanes

2190 Executive Hills Blvd.Auburn Hills, MI 48326

(248)-322-7361(248)-322-7303 fax

Contact“ACE”

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JEFFAMINE, JEFFSOL, RUBINATE,TIOXIDE and SUPRASEC are registeredtrademarks of Huntsman Company LLC or anAffiliate thereof in one or more, but not all,countries.UNILINK is a trademark of UOP.ETHACURE is a trademark of Albemarle.SILQUEST is a trade mark of OSI Specialties.