viton® and vamac families: chemical structure and ... viton...vtr-8802/8804, 60% fluorine etp-s,...

Viton® and Vamac families:

Chemical structure and monomer composition

April 13, 2010 DuPont Confidential

2Monomers used in Viton®

F2C=CF-CF3 (76% fluorine)

hexafluoropropylene

HFP

F2C=CF2 (76% fluorine)tetrafluoroethylene

TFE

H2C=CF2 (59% fluorine)vinylidene fluoride

VF2

H2C=CH2ethylene

E

H2C=CH-CH3propylene

P

Carbon

Hydrogen

Fluorine

Oxygen

F2C= CF-O-CF3 (69% fluorine)perfluoromethylvinylether

PMVE


3Viton® Fluoroelastomer Families-Monomer Composition

*Cure Site Monomer (composition depends on polymer)

VF2 HFP TFE PMVE EP CSM*

A

66%F

BF

AL

66-70%F

Standard Viton®

GAL-SGBL-SGF-S

65.5-70%F

GLT-SGBLT-S GFLT-S

64.5-67%F

ETP-S

66%F

TBR-S

60%F

Viton® ExtremeTM

Viton® made with APA

Low Temperature

Specialty Viton®


4

«A» and

«GAL-S» families

66% Fluorine

«B» and

«GBL-S» families

68% Fluorine

«F» and

«GF-S» families

70% Fluorine

Most Fluid Resistant

Families of Viton®

Incre

asin

gF

luo

rin

e

Improving

Chemical Resistance

+

Decre

asin

gH

yd

rog

en

Standard Viton®

«GLT-S» family

64% Fluorine

«GBLT-S » family

66% Fluorine

«GFLT-S» family

67% Fluorine

VTR-8802/8804, 60% fluorine

ETP-S, 67% fluorine

Viton® ExtremeTM

Specialty Viton®

Low Temperature

Note: polymers with names ending with an “S” are based on Advanced Polymer Architecture

(APA) technology

Relative Performance of Viton®Fluoroelastomer Families


6

low

��

��

��

��

65.5%

peroxide

GAL-S

low

��

��

��

��

66%

bisphenol

AL

low

BEST

��

��

��

66%

bisphenol

A

Heat resistance

low

��

��

BESTBESTBESTBEST

��

60%

bisphenol

TBR-S

medium

��

��

��

��

66%

peroxide

GBLT-S

medium

��

BESTBESTBESTBEST

��

��

64.5%

peroxide

GLT-S

medium

��

��

��

��

67%

peroxide

GFLT-S

low

��

��

��

��

70%

peroxide

GF-S ETP-SGBL-SFBViton® product

BESTBESTBESTBEST�� Chemical resistance* *

peroxideperoxidebisphenolbisphenolCuring system

highlowlowlowRelative cost of polymer

�� Compression set resistance

��

Low temperature properties

BESTBESTBESTBEST��Base resistance

66%67.5%70%68.5%Fluorine content

Excellent �� Very good �� Good �� Fair �� PoorBEST

“S” indicates products made with Advanced Polymer Architecture* Consult the Chemical Resistance Guide at www.dupontelastomers.com or contact your Viton® specialist.

Viton® Relative Performance

All Viton® products have outstanding thermal properties


7Viton® Fluoroelastomers Typical Applications

High fluorine for best

chemical resistance

(e.g. steam and acid)

High fluorine for best

chemical resistance

(e.g. steam and acid)

Easy processing

low fluorine

(e.g.standard o-

rings)

Easy processing

low fluorine

(e.g.standard o-

rings)

Best

low temperature

performance

(e.g. fuel injector

o-rings)

Best

low temperature

performance

(e.g. fuel injector

o-rings)

High fluorine with low

temperature functionality

(e.g. fuel systems)

High fluorine with low

temperature functionality

(e.g. fuel systems)

-35

-30

-25

-20

-15

-10

-5

0

0 5 10 15 20 25 30 35

Volume swell upon immersion in M15 / 7 d / room-temperature (%)

Lo

w t

em

pera

ture

fle

xib

ilit

yT

R-1

0

(°C

)

ALALGALGAL--SS

BB

GFLTGFLT--SS

GLTGLT--SS

GBLTGBLT--SS

Best compression set and processing

Best fluid resistance

GBLGBL--SS AA

GFGF--SS

(F)(F)

Broadest fluid

resistance

(e.g. down

hole)

Broadest fluid

resistance

(e.g. down

hole)

ETPETP--SS

red for Viton® made with APA (« -S » for APA technology); « G » for peroxide curing vs. bisphenol curing, « LT » for low temperature

Vamac®

Ethylene Acrylic Elastomer (AEM)

General Introduction

February 2010


9

Vamac® on the Elastomer’s Map

Classification by ASTM D-2000

HeatRes.70 hrs

Oil Resistance% Swell in IRM 903 Oil

No Req 170 120 100 80 60 40 20 10

Butyl

70

100

125

200

225

250

Styrene Butadiene

Natural Rubber

Neoprene

CSM

Vamac®

Viton®

Silicone

EPDM

Fluorosilicone

Polyacrylate (ACM)

HNBR

Epichlorohydrin

Nitrile

NBR/PVC

CPE

V Solutions SpaceSealing & Hose Applications

HiTemp-ACM

150

175

165

Applications with

min. temperature requirements of

165 degrees

Applications with reduced

swell


10

AEM G -Type Terpolymer

(CH2-CH2)x – (CH-CH2)y – (R)z

| |

O=C C=O

| |

OCH3 OH

Ethylene, Methyl Acrylate, Acidic Cure Site

Chemical Structure

(A) Monomers Choice and Ratio

(B) Molecular Weight

Distribution Optimization.

New products

Starting from Vamac® G, new products can be obtained by (A), (B) or (C) to meet customers required performances.

(C) Adjustments at Finishing step.


11

Vamac® - Grade Selection

AEM G -TYPE Terpolymer AEM D -TYPE Dipolymer

(CH2-CH2)x – (CH -CH2)y – (R)z (CH2-CH2)x – (CH -CH2)y

| | |

C =O C=O C = O

| | |

OCH3 OH OCH3

Diamine Cure Peroxide Cure

VAMAC® GRADES


12

Vamac® Product Line and DevelopmentsLower oil swell

Best Low T properties

Better properties,faster cure

Higher viscosity

Best Dynamic Flex Fatigue

(Turbo Hoses)

Peroxide Cure

Limited Post-Cure

Vamac® DP

Vamac® G Vamac® GLS

Vamac® GXF

Vamac® HVG

VMX-3038 (developmental)

Vamac® Ultra LT

Vamac® Ultra IP (VMX-3040)

VMX-3110 (developmental)

Best Processing and Compression Set

Properties

High ViscosityGrades

VMX-3121(low swell version,

experimental)


13

High Viscosity Grades

Best Compression

Set, Fast Cure, Low

Oil swell

Molded parts with best fluid and

lubricant resistance

Best Dynamic

Fatigue Resistance;

High Temperature Turbo Charger

Hoses

Best Compression

Set, Fast Cure

Low HardnessMolded parts, Seals

& Gaskets, High

pressure hoses

Major Features;

Main Application(s)

Vamac® VMX-311030 MU, -25 °C

Vamac® VMX-303830 MU, -32 °C

Vamac® Ultra IP29 MU, -31 °C

High Viscosity Grade

ML (1+4) 100°C, Tg

Vamac® GLS18.5 MU, -24 °C

Vamac® GXF17.5 MU, -31 °C

Vamac® G16.5 MU, -30 °CStandard Grade

ML (1+4) 100°C, Tg

Vamac® VMX-3121

31-33 MU, -26 °CHigh MA version of

VMX-3038

Vamac® - Standard and High Viscosity Grades


14

Vamac® Grade Description

Best HT properties

30.0Talilored MW and Monomer contentVMX-3038

16.5Standard GradeG

Low T resistance11.0New copolymerUltra LT

Target

Performances

Polymer

22.0 +/-3

16.5

29.0

18.5

26.0

18.5

ML 1’+4’(100°C)

Better processTailored MW distributionUltra IP

Fatigue resistance

Modified cross-link densityGXF

No post-cure

Polymer Modification

Green strength

Improved Fluid resistance

Covalent precrosslinkHVG

DiPolymer, No acidic cure siteDP

Specific Finishing ProcessMR

Increased MA %for higher polarityGLS

FeaturesGrade

Dia

min

ecu

rep

ero

xid

e

Vamac® grades tailored on a target performance to meet customers needs.

On-line Tools


16Wall Chart for Viton®, a Selection Guide

Viton®

Product

Name

Nominal

Viscosity

(ML 1 +

10 @

121°C)

Specific

Gravity

Polymer

fluorine

content,

%

Compression

set, %

70 hr @

200°C

Temperature

Retraction

(TR-10), °C

Volume

Increase,

CM-15

Fuel @

23°C com

pre

ss

ion

Tra

ns

fer

Inje

cti

on

me

tal

bo

nd

ing

Ex

tru

sio

n

Ca

len

de

rin

g

Co

ati

ng

s /

Ma

sti

cs

A and AL types: Standard FKM - excellent compression set and heat resistanceCurative Containing Precompounds ("C" at end of product name)

A331C 30 1.81 66 20 -17 30% X X X X X

A361C 30 1.81 66 17 -17 30% X X X X X X

VTR-9180 30 1.81 66 18 -17 30% X X X X

A401C 40 1.81 66 15 -17 30% X X X X

A601C 60 1.81 66 10 -17 30% X X X X

VTR-9192 32 1.76 66 25 -19 32% X X X

Gum Polymers

A100 10 1.82 66 21(2)

-17 30% X X X X X

A200 20 1.82 66 16(2)

-17 30% X X X X X X

A500 50 1.82 66 14(2)

-17 30% X X X X X

A700 70 1.82 66 11(2)

-17 30% X X X X X

AHV 160 (1)

1.82 66 10(2)

-17 30% X X X

AL300 30 1.77 66 15(2)

-19 32% X X X X X X

AL600 60 1.77 66 -19 32% X X X X X X

Molding Others

Product name

Mooney viscosity

Specific gravity & % fluorine

Comp set & TR-10

Vol. swell, M-15

Processing info

Viton® wall chart is available at www.dupontelastomers.com


17

Base resistance: Best resistance to aggressive amine based anti-corrosion additives ?

Base resistance: Best resistance to aggressive amine based anti-corrosion additives ?

Hydrocarbon resistance (automotive fuels, etc.)?

Hydrocarbon resistance (automotive fuels, etc.)?

High resistance to oxygenated-fuels(MeOH, MTBE), steam, acids?

High resistance to oxygenated-fuels(MeOH, MTBE), steam, acids?

Low temperature flexibility better

than -20°C?


than -20°C?

yes

yes yes

yes yes

no

nono

no

ETP-S

GFLT-S

TBR-S

GFLT-S

GBLT-S GF-S

F GLT-SAL

GBL-S

A


than -20°C?


than -20°C?

no

B

Selection Based on Application Needs

black for standard Viton® ; red for Viton® made with APA (« -S » for APA technology)


18On-line Viton® Selection Guide


19On-line Chemical Resistance Guide

The CRG is a resource to help you choose the best elastomer for your application.Access to our on-line Chemical Resistance Guide (CRG) is available through the DuPont Performance Elastomers web site at www.dupontelastomers.com,where detailed information about our product line may also be found.


20Example 1: Water and Steam

Water Steam under 150°C Steam over 150°C


21Example 2: Fuel C/Methanol (90%/10%)


22

On-line Application Guide for Viton® Made With APA


23On-line Application Guide for Viton® Made With APA


24

ThankThank youyou for for youryour attention attention

The information set forth herein is furnished free of charge and is based on technical data that DuPont believes to be reliable and falls within the normal range of properties. It is intended for use by persons having technical skill, at their owndiscretion and risk. This data should not be used to establish specification limits nor used alone as the basis of design. Handling precaution information is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Since conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any product, evaluation under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on patents.Caution: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your DuPont customer service representative and read Medical Caution Statement H-50103-3.

Copyright© 2010 DuPont™. The DuPont Oval logo, DuPont™, The miracles of science™, Viton®, Vamac®, are registered

trademarks of E.I. du Pont de Nemours or its affiliates. All rights reserved.

viton® and vamac families: chemical structure and ... viton...vtr-8802/8804, 60% fluorine etp-s,...

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