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“ Recent Discoveries - PPT Presentation

in FEVE Fluoropolymer Resin Technology Performance Beyond Weatherability Bob Parker AGC Chemicals October 29 2014 Recent Discoveries in FEVE Technology Outline Explanation of FEVE ID: 709542

technology feve resin discoveries feve technology discoveries resin test testing coating water exposure coatings polyol mils solvent resistance resins gloss film epoxy

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Slide1

“Recent Discoveries in FEVE Fluoropolymer Resin Technology – Performance Beyond Weatherability”

Bob Parker

AGC Chemicals

October

29, 2014Slide2

Recent Discoveries in FEVE Technology Outline:Explanation of FEVE polyol technology

Summary of FEVE resins and their properties

Exposure testing of FEVE resin formulations

Corrosion resistance testing Chemical Resistance TestingMoisture Permeability TestingSummary

1Slide3

Recent Discoveries in FEVE Technology Fluoroethylene Vinyl Ether (FEVE) Resins

2

FLUORINATED SEGMENTS: Weatherability, chemical resistance

VINYL ETHER SEGMENTS: Gloss, solubility, crosslinkingSlide4

Recent Discoveries in FEVE Technology Characteristics of FEVE

Fluoropolymer

Resins

:Ambient CureAllows field applications at ambient temperaturesOH Functionality

-

Crosslinkable

with hardeners

Solvent Soluble

Conventional application techniques

Wide range of gloss

Fluoropolymer

Segments

UV ResistanceCorrosion resistanceChemical and solvent resistance

3Slide5

Recent Discoveries in FEVE Technology Markets for FEVE resin-containing coatings:

Architectural Coatings for commercial buildings

Industrial Maintenance Coatings for water towers, bridges, and assorted metal and concrete structures

Aerospace coatings Applications in Marine environments 4Slide6

Recent Discoveries in FEVE Technology Commercial Types of “FEVE” Polyol Resins:

Solvent soluble resins

uses organic solvents for viscosity reduction; predominantly cured with isocyanates; available as resin solutions or as 100% solid resins2) Water-based dispersion – carboxyl modification of FEVE resin to obtain stable dispersion in water

5Slide7

Recent Discoveries in FEVE Technology Commercial Types of “FEVE” Polyol Resins:

3) Water-based emulsion –

use vinyl ether

macromonomers containing polyoxyethylene (EO) units to create stable emulsion 6Slide8

Recent Discoveries in FEVE Technology

7

QUV-B

Weatherometer

Exposure Testing Slide9

Recent Discoveries in FEVE Technology 8

QUV-A

Weatherometer

Exposure TestingSlide10

Recent Discoveries in FEVE Technology

9

Sunshine Weatherometer Exposure Testing (Carbon Arc)Slide11

Recent Discoveries in FEVE Technology 10

EMMAQUA Testing (Outside Test Fence – Arizona)Slide12

Recent Discoveries in FEVE Technology 11

South Florida Test Fence ExposureSlide13

Recent Discoveries in FEVE Technology Corrosion Resistance Test of FEVE Coatings:

LOCATION:

Suruga Bay Marine Test Station (offshore)

LENGTH OF TEST: 16 yearsCOATINGS SYSTEMS ON TEST: 1) Zinc-rich primer / Epoxy Midcoat / Acrylic Urethane Topcoat 2) Zinc-rich primer / Epoxy Midcoat / Fluorourethane TopcoatTHICKNESS OF COATING: PRIMER = 3 mils /

MIDCOAT = 6 mils

/

TOPCOAT = 1 mil(25 microns)

12Slide14

Recent Discoveries in FEVE Technology

ACRYLIC URETHANE TOPCOAT

FLUOROURETHANE TOPCOAT

INITIAL MEASUREMENT (microns)

25

25

FINAL MEASUREMENT (microns)

0

(after 13 years)

21

13

Measurement of Total Erosion of the Topcoat Slide15

Recent Discoveries in FEVE Technology 14

SEM Scan of cross section

Of Coating System

(after 16 year exposure)EDX (Energy Dispersive X-Ray Microanalysis)BLUE: ChlorideGREEN:

Coating System

RED:

MetalSlide16

Recent Discoveries in FEVE Technology 15

SEM Scan of Zinc-rich Primer

INITIAL

AFTER 15 YEARSSlide17

Recent Discoveries in FEVE Technology 16

2K Polyurethane

on the left (1 Coat)

2K Fluoro-urethane on the right (1 Coat)2000 Hours of B117 Salt Spray testing(Panels primed with

3 mils of 2K Epoxy)Slide18

Recent Discoveries in FEVE Technology 17

2000 Hours of B117

Salt Spray

testing(Panels primed with 3 mils of 2K Epoxy)2K Polysiloxane

on the

left (1 Coat)

2K

Fluoro

-urethane

on the

right (1 Coat)Slide19

Recent Discoveries in FEVE Technology Chemical Resistance Testing The following testing is immersion testing.

The coated test panels are fully immersed

in the chemical/solvent and observedfor any changes in their appearance 18Slide20

Recent Discoveries in FEVE Technology CHEMICAL

EXPOSURE

(Acid or Base)

FEVE Resin with medium crosslink density (Days to Failure*)

FEVE Resin with high crosslink density

(Days to failure*)

10%

HCl

(Hydrochloric Acid)

>30

>30

10%H2SO4 (

Sulphuric

Acid)

>30

>30

5% CH3COOH (Acetic Acid))

17

>30

1% H2SO3

(

Sulphur

Dioxide

)

3

3

10% NaOH (Sodium Hydroxide)

>30

>30

12% NaOCl (Sodium Hypochlorite)

>30

>30

19

*

Failure

is defined

as one of these changes in the dry film:

The

appearance of

blisters

Gloss reduction

Total

paint film degradation

The

test coating

is a gloss white 2-pack

fluorourethane

.Slide21

Recent Discoveries in FEVE Technology SOLVENT EXPOSURE

FEVE Resin with medium crosslink density

(Days to Failure*)

FEVE Resin with high crosslink density

(Days to failure*)

Aqueous Formaldehyde

>30

>30

Benzene

>30

>30

Xylene

10

>30

Acetone

20

20

Isopropanol

20

20

20

*

Failure

is defined

as one of these changes in the dry film:

The

appearance of

blisters

Gloss reduction

Total

paint film degradation

The

test coating

is a gloss white 2-pack

fluorourethane

.Slide22

Recent Discoveries in FEVE Technology 21

4 Hour Spot Test – 98%

Sulphuric

AcidPanel #1 – 3-4 mils of Epoxy Primer

Coating dissolved immediately

Panel #2 –

3-4 mils of Epoxy primer

5-6 mils of FEVE-based

clear coating

Coating remained intactSlide23

Recent Discoveries in FEVE Technology Moisture Permeability TestingFollowing ASTM Test Method E96 or D1653

Measuring the amount of water vapor transmitted through the film of the cured coating

Unit of measurement is grams of water vapor per cm² per hour

There is a correlation between the amount of moisture permeability of the coating and the degree of corrosion of the substrate22Slide24

Recent Discoveries in FEVE Technology

Resin Type

Cured

with Hardener

Film Thickness (microns)

Total Moisture Permeation**

FEVE

polyol

*

No

20

1.09

x 10ˉ³

Acrylic

Polyol

No

20

4.5

x 10ˉ³

FEVE

Polyol

*

Yes

21

0.45

x 10ˉ³

Acrylic

polyol

Yes

14

1.55

x 10ˉ³

23

*medium crosslink density resin

**grams

of water vapor per cm² per hourSlide25

Recent Discoveries in FEVE Technology SummaryFEVE resin technology is an alternative choice for exterior coatings, both pigmented coatings and

clearcoats

.

They possess some interesting properties that expand the list of formulating tools which can be used in the pursuit of high-performance industrial maintenance coatings.FEVE resin technology can be easily incorporated into many standard solvent-based and water-based formulations. 24