A New, Short Chain Fluorosurfactant Christina Marlier Northwest
Coatings Fest October 9, 2014
Slide 2
Packing improves the surface tension of short chain
fluorosurfactants 18 mN/m 23-25 mN/m C2F5C2F5 n Branched
surfactants Perfluorooxetane Concepts to Meet Legal and Customer
Requirements Branched short chain fluorosurfactant 16-25 mN/m 21-23
mN/m 30-34 mN/m Hydrophilic moiety Simply cutting the perfluoro
chain worsens the performance! REDUCTION OF BIOACCUMULATION
C2F5C2F5 C2F5C2F5 C2F5C2F5 2Short Chain Fluorosurfactants | C.
Marlier | September 2014
Slide 3
The Concept Branched short chain fluorosurfactant
Perfluorinated part Possible higher fluorine packing density of
branched short chain fluorosurfactants Branched surfactant
structures should have advantages regarding static and dynamic
surface tension. RfRf RfRf RfRf Hydrophilic part Ionic or Nonionic
chemistry 3Short Chain Fluorosurfactants | C. Marlier | September
2014
Slide 4
Toxicity Profile Short Chain Fluorosurfactants | C. Marlier |
September 20144 No bioaccumulationNo skin or eye irritationNo oral
toxicityNo mutagenicityNo inhalation toxicity Inhalation and
Bioaccumulation key factors when comparing to other FS
Slide 5
Static Surface Tension Results in Water Branched FS (C2F5)
5Short Chain Fluorosurfactants | C. Marlier | September 2014
Slide 6
Dynamic Surface Tension Results in Water Branched FS
(C2F5)Branched FS (C3F7) Gemini Hydrocarbon Linear FS (C6F13)
Silicone surfactant 6Short Chain Fluorosurfactants | C. Marlier |
September 2014
Slide 7
Leveling with and without C2 Branched Flow and Leveling Short
Chain Fluorosurfactants | C. Marlier | September 20147
Slide 8
Foaming Tendency Aqueous Acrylic Floor Polish 0,1% branched
fluorosurfactant 60 sec 0,1% C 8 F 17 -ref anionic 0 sec 0,1% C 8 F
17 -ref anionic 120 sec 0,1% C 8 F 17 -ref anionic 60 sec 0,1%
branched fluorosurfactant 0 sec 0,1% branched fluorosurfactant 120
sec 8Short Chain Fluorosurfactants | C. Marlier | September
2014
Slide 9
De-wetting Resistance No surfactant ethoxylated, acetylenic
diol (non- fluorinated) Branched, C2- perfluorinated
Fluorosurfactant C6-based Fluorosurfactant System: White Aqueous
Low VOC Alkyd Enamel Application: images of variable thickness draw
downs (between 100 to 0 microns thickness) of samples inoculated
with the various test additives. Aqueous Alkyd Enamel Layer
thickness 9Short Chain Fluorosurfactants | C. Marlier | September
2014
Slide 10
Visual Evaluation Acid Cure Wood Coating Ranking Most Effective
to Least Effective Branched C3 Fluorosurfactant Linear C4F9 A
Linear C4F9 B Branched C2 Fluorosurfactant No Fluorosurfactant
Linear C6F14 Branched C3 top in both gloss and visual C4 shows good
gloss but creates pin holes 10Short Chain Fluorosurfactants | C.
Marlier | September 2014
Slide 11
Improvement of Gloss Longwave Scan Result Comparison of C4-
linear C2- branched Fluorosurfactant => C2-branched structure
creates smother coating Acid Cure Wood Coating 11Short Chain
Fluorosurfactants | C. Marlier | September 2014
Slide 12
Block Resistance Acid Cure Branched FS Linear C4 12Short Chain
Fluorosurfactants | C. Marlier | September 2014 Least force
required to separate face to face Branched FS Both welding and
stick slip behavior Linear C4s
Slide 13
Gloss vs. Concentration UV-Curing Enamel Silicone Linear FS,
C6F13 Superwetter Branched FS, C2F5 Branched FS, C3F7 13Short Chain
Fluorosurfactants | C. Marlier | September 2014
Slide 14
Visual Evaluation UV- Curing Enamel Ranking Best to Worst
Branched C2 Fluorosurfactant Branched C3 Fluorosurfactant Silicone
Linear C6F13 Superwetter None Branched Fluorosurfactants top in
both gloss and visual 14Short Chain Fluorosurfactants | C. Marlier
| September 2014
Slide 15
Branched short-chain fluorosurfactant VERY FAST acting
excellent dynamic surface tensionGood static surface tension
reductionProven good surface wetting & leveling effectsNo
bioaccumulation or inhalation toxicityVery small perfluorinated
chains (C2F5 components) Major advantages 15Short Chain
Fluorosurfactants | C. Marlier | September 2014
Slide 16
Critical Surfaces PolymerAbbreviation Surface free energy (SFE)
at 20 C [mN/m] Polyethylene terephthalatePET42
PolymethylmethacrylatePMMA41 PolyvinylalcoholPVA37 PolystyrenePS34
PolyethylenePE30 PolypropylenePP30 Fluorinated PE/PPFEP20
PolytetrafluoroethylenePTFE19 Upcoming Molecules Short Chain
Fluorosurfactants | C. Marlier | September 201416
Slide 17
Infinite Wetting Branched short-chain fluorosurfactants 17Short
Chain Fluorosurfactants | C. Marlier | September 2014
Slide 18
CMC Concentration Non-ionic Surfactant 18Short Chain
Fluorosurfactants | C. Marlier | September 2014