Coating Rheology - Werner

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PIGMENT PARTICLES Dispersed 26
cm 100 10 1 0.1 0.01 PIGMENT SETTLING 24 hours Pigment 3.0 g/cm 3 0.001 0.1 1 10 PARTICLE SIZE, micron POISE 1 10 100 27
Page 1 and 2: You are now at www.wernerblank.com
Page 3 and 4: Coating Rheology - Outline Rheolog
Page 5 and 6: d What is Rheology ? Science of Def
Page 7 and 8: Yield Stress Non-Newtonian Viscosit
Page 9 and 10: Viscosity η RHEOLOGY PROFILE pigme
Page 11 and 12: Rotational Rheometers Parallel Plat
Page 13 and 14: Viscosity: Units The units of Visco
Page 15 and 16: log (Viscosity) Limitation in Singl
Page 17 and 18: Impact of Rheology on Flow Pattern
Page 19 and 20: Type of Viscosity Shear Rate (γ )
Page 21 and 22: GRINDING & DISPERSION 21
Page 23 and 24: SAND MILL DISPERSER 2000 ft/min 400
Page 25: PIGMENT PARTICLES Flocculation
Page 29 and 30: Brush Application Shear thinning-ea
Page 31 and 32: d Viscosity - Definition A - Area V
Page 33 and 34: Application Spray Formation of drop
Page 35 and 36: Spray Rheology Primary Mode of Def
Page 38 and 39: ELONGATIONAL VISCOSITY Vacuum 38
Page 40 and 41: ROLLER COATING Direct Roller Coatin
Page 44 and 45: Higher Viscosity Hinders Flow and L
Page 46 and 47: SECONDS 60 50 40 30 20 10 0 α γ L
Page 48 and 49: SAGGING χ η = Poise ρ = g/cm 3
Page 50 and 51: Effect of Coating Variables on Rheo
Page 52 and 53: log η T =13 - WLF Equation 17.44(T
Page 54 and 55: VISCOSITY , LOG POISE, 25°C 5 3 1
Page 56 and 57: “Viscosity” Effect of Dispersed
Page 58 and 59: VISCOSITY, POISE 100 10 VISCOSITY D
Page 60 and 61: VISCOSITY, CPS 1E5 1E4 1E3 VISCOSIT
Page 62 and 63: ATTAPULGITE SMECTITE ORGANO CLAY
Page 64 and 65: Inorganic Rheology Modifiers (Thick
Page 66 and 67: Viscosity Thixotropy Viscosity Time
Page 68 and 69: Thixotropes - Incorporation Organo
Page 70 and 71: Oil Modified Urethane Silica Flatti
Page 72 and 73: Brush Applications 72
Page 74 and 75: Extensional Viscosities of Waterbor
Page 76 and 77:
Effect of Molecular Weight on Thick
Page 78 and 79:
Cellulosics - Thickening Mechanisms
Page 80 and 81:
Associative Thickeners Several Diff
Page 82 and 83:
Associative Thickeners - HASE Type
Page 84 and 85:
Sensitivity of Associative Thickene
Page 86 and 87:
ACRYLIC EMULSION Leafing Aluminum F
Page 88:
REFERENCES: Paint Flow and Pigment
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Coating Rheology - Werner

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