Total Solution surface chemistry

Dynamic Contact Drop Sharp Contact

Angle (Phoenix) Surface Tension

(DST)

Cleaness Treatment

system (CTA)

Polymers Plastic Film printing Inks & Coatings Paint & Sealants Pharmaceuticals Paper and paper products Hair and Hair care Fibers and Composites Surfactants Semiconductor,Wafer,FPD Electronic components,Lead frame,EMC.,

Surface Wettability Pendent drop for Surface Tension Static Contact angle Solid Surface Energy Absorption Dynamic Contact angle Sequence Contact angle

Analysis of Adhesion Properties Determination of Surface Homogeneity

Cleanliness of solids Time Based Contact angle Advanced Studies

Phoenix 300(Drop Shape ) Phoenix 150

(Drop Shape )

Phoenix Pico/Nano

(Drop Shape )

Phoenix 600(Drop Shape )

Phoenix- multi syringe

(Drop Shape)

Phoenix HT Up to 1200’c

Phoenix Alpha(Drop Shape )

Phoenix Mini(Drop Shape )

  Phoenix 300Phoenix

150 Phoenix 600

Measurement range      

Contact angle 0 - 180 0 - 180 0 - 180

Surface Tension(dyne/cm) 1 - 500 1 - 500 1 - 500

Frame rate(standard) (Option* )

30fr/sec(90 fr/sec)

30fr/sec (90 fr/sec)

 

30fr/sec (90 fr/sec)

 

Measurement Precision      

Surface tension (dyne/cm) ± 1 ± 1 ± 1

Contact angle ± 0.1 ± 0.1 ± 0.1

Moving control manual * manual  X-,y- control *

Sample size      

Max size ( W x H)(mm) 200x 50 200x 50 400x 50

Drop control Auto/manual Manual Auto/manual

Drop size Avg.5-12ul* Avg.5-12ul* Avg.5-12ul*

Camera CCD * CCD * CCD*

Lens 6.5 Zoom  3 zoom 6.5 Zoom

Phoenix Pico 

0 - 180

1 - 500

30fr/sec (90 fr/sec)

 

 

± 1

± 0.1

Manual* 

 

200x 50

Auto/manual

Up to 70 pico*

CCD*

6.5 Zoom

* : Available the option & depend the needle size

 PhoenixAlpha

PhoenixMini

Measurement range    

Contact angle 0 - 180 0 - 180

Surface Tension(dyne/cm) 1 - 500 1 - 500

 Frame rate (Standard) (Option)

30 fr/sec(90 fr/sec) 

30 fr/sec(90 fr/sec) 

Measurement Precision    

Surface tension (dyne/cm) ± 1 ± 1

Contact angle ± 0.1 ± 0.1

Moving control manual  manual 

Sample size    

Max size ( W x H)(mm) 100x 50 70x 50

Drop control Auto/manual Manual

Drop size Avg.5-12ul* Avg.5-12ul*

Camera CCD * CCD *

Lens 6.5 Zoom  1X zoom* : Available the option & depend the needle size

DST 60 system

DuNouy RingDST 30 system

Measurement Range Method: DuNouy Ring & Wilhelmy

(DST60) DuNouy Ring(DST30)

Surface Tension: 1 – 1000 mN/mSurface Tension: ± 0.2mN/mBalance Precision: 10 mgMax Weight: 200 gMax Diameter: 70 mmLift system: Automatic (DST60) Manual (DST30)

Contact Angle

Contact Angle is the “Angle” measured between the liquid and the solid by drawing a tangent at the point of contact.

It is a measure of the interaction between liquid and solid.

Liquid

Liquid

Solid

VaporContact Angle

Liquid

Liquid

Solid

VaporContact Angle

Young equationSV = SL + LV cos

SV

SL

LV

Develop the image for Contact angle

Old Method(Goniometer )

If Contact Angle is:0 ° - Complete wetting>0 ° but < 90 ° - Partial Wetting>90 ° but < 180 ° - Non- wetting180 ° - Complete non-wetting

S > 0, complete wetting

S < 0,partial wetting

S.C = SV - (LV + SL)

SV

SL

LV

(S.C) = free energy difference between solid, directly in contact with the vapour and a solid covered by a flat, thick liquid layer

What is Spreding Coefficient?What is Spreding Coefficient?

Syringe

Water

Advancing Contact Angle

θLiquid

Solid

Vapor

Solid

the contact angle while fluid is flowing onto the solid

Dynamic Contact Angle?Dynamic Contact Angle?

Advancing Contact Angle;Captive method ?

Receding Contact Angle;

Syringe

Water

Receding Contact Angle

θ

Liquid

Vapor

Solid

Solid

The contact angle while fluid is drawn away from the solid

Dynamic Contact Angle?Dynamic Contact Angle?

r

a

Maximum = advancing C.A

Minimum = receding C.A

Dynamic Contact Angle?Dynamic Contact Angle?Tilt method ?

What is Hysterisis ?What is Hysterisis ?

• Coverage • Roughness • Chemical Contamination• Heterogeneity of solid surface

Hysteresis (H) = Adv C.A - Rec C.A.Heterogeneous Surfaces Based on the Model of Johnson and Dettre

Information of;

Hydro-Philic CA data

ImageXP Software for CAImageXP Software for CA

Hydrophobic CA data

ImageXP Software for CAImageXP Software for CA

Pendent drop for Surface tension

ImageXP Software for CAImageXP Software for CA

Time based Contact angle

ImageXP Software for CAImageXP Software for CA

Reference data

ImageXP Software for CAImageXP Software for CASolid Surface Energy

Methods

ABS

LWSS

2222

222)cos1( lSlSLWl

LWSl

3333

222)cos1( lSlSLWl

LWSl

ImageXP Software for CAImageXP Software for CA

pl

pS

dl

dSl 111

22)cos1(

pl

pS

dl

dSl 222

22)cos1(

pS

dSS

Geometric Method( Two Liquids (Polar/Non-polar)

Lewis-Acid methods(three Liquids)

ImageXP Software for CAImageXP Software for CAWork of Adhesion: Thermodynamic Property of Two-phase system in Molecular interfacial contact

L

S

i

S

AdhesionWork of adhesion:

WA =SV + LV - SL = LV (1 + cos )

S

S

Cohesion

Work of Cohesion:

Wc = 2S

L

S > 0, complete wetting

S < 0,partial wetting

S.C = SV - (LV + SL)

SL

(S.C) = free energy difference between solid, directly in contact with the vapour and a solid covered by a flat, thick liquid layer

LV

ImageXP Software for CAImageXP Software for CA

SV

ImageXP Software for CAImageXP Software for CADynamic Contact angle

Surface Tension Analyzer

F

A

This method involves the determination of the force to detach a ring from the surface of liquid.

RπF

γ2×2

=

= Liquid Surface TensionR= Radius of ring

F = Balance Force

= F/p= Liquid Surface TensionF= balance forcep = Wetted perimeter

How is a SurfaceTension Test performed?

1. Liquid Up2. Liquid Attaches /advancing

Interface3. Back to surface4. Liquid Detaches 5. Read the Surface Tension

The world leader in surface chemistry

Surface Electro Optics

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