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ALBERDINGK BOLEY GmbH
www.alberdingk-boley.com.alberdingk-boley.com
Düsseldorfer Str. 5347829 Krefeld, Germany Phone +49 2151 528-0 Fax +49 2151 573643
ALBERDINGK RESINS (SHENZHEN)Co., Ltd.(West) 1st/2nd Floor, Building D, Huanyu Industrial Park, Xuefu Road, Xingwei , Huangtian, Xixiang, Bao’an District, Shenzhen
Alberdingk Boley
Waterborne plastic coatingsWaterborne plastic coatings
by Magdalena Bodi
178 years History178 years History
1828 Production of oils (linseed and castor)
1970 Start with WB binders: Acrylic dispersions
1985 Polyurethane dispersions1998 Production of adhesives2000 Alberdingk Boley Inc., NC, USA2004 Production in Greensborough,
USA2006 Alberdingk Boley in China
Alberdingk Boley
Contents
• Company introduction
• Binder types, characteristics, film formation
• Application field plastic coatings
Required properties
Product recommendation
Alberdingk Boley
Nature of AB dispersionsWhat are really this binders??
• Waterabased dispersion?
• Waterbased emulsions?
• Latexes?• Solutions in water?
• Small solid polimer particles dispersed in water = DISPERSIONS
m.w.>100000• Dilutable with water
in liquid fase• Non soluble in water
as a dried film
Alberdingk Boley
Optical appearance of the dispersion
Particle size:
> 1µm:
milky white
1µm – 0,1µm
brownish white appearance
0,1µm - 0,05 µm
semi-transparent
< 0,05 µm
almost transparent
Alberdingk Boley
Acrylic PUD PUD
Film forming mechanism
Stage I Evaporation of water
Stage II Particle deformation, T > MFFT
Stage III Coalescence
Stage IV Interdiffusion of polymer chains
Aqueous polymer dispersion(Solid Content: 30-60%)
Arrangement of particles, close contact
Deformation of the polymer particles
Surfaces of polymer particles are disappearing: polymer chains intermix
Polymer interdiffusion, leading to a mechanical stable polymer film
Alberdingk Boley
MFFT reduction with different coalescing agents for AS 2615
0
10
20
30
40
50
60
70
0 5 10 15
BG BDG
DPnB DPM
FSB EDG
Cosolvent %
MF
FT
°C
Alberdingk Boley
Curing mechanisms of w/b coatings
1. 1-Component (drying only)optional: self cross-linking binders
2. 2-Component cross-linking
3. UV cross-linking
4. Dual curing (UV and isocyanate)
Alberdingk Boley
Alberdingk binder for plastic coatings
• 1KStyrene Acrylics:AS 2615; AS 2606,AS 26090Pure Acrylic:AC 2508AC-PU hybridsAPU 10610APU 10351Polyurethane:U 610, U 5200, U 3251
• 2 KOH-fuctional acrylics:AC 2598; AC 2597AC-PU hybrids:APU 10610; APU 10120;APU 10351Polyurethane:U 610, U 5200, U 3251 for
flexible substratesU 9160; U 9800 for hard
substrates
Alberdingk Boley
Application fields
• Hifi , TV-Sets , Mobile phones,
Computers, etc.• Car interior : different plastic
parts, softfeel and non-
softfeel• Car exterior:
Basecoats
Wheel cover
Alberdingk Boley
Requirements
Very good adhesionAlu-pigment orientationAlcohol- und fat resistanceScratch resistance
Substrates : ABS , PS ABS-PC, PC
Alberdingk Boley
Mobile phones Recommended products:
Styrene-Acrylic dispersions:AS 2615, AS 2606 good chemical resistance, hardness Polyurethane dispersions:U 9160 or U 9800 as 2K systems for excellent chemical resistance and hardness
Computer-, TV, HIFI casesProduct recommendation
Styrene-Acrylics:
AS 2615; AS 2606, basecoat, monolayer
OH-functional acrylics:
AC 2598; AS 2799 as 2K-PU
PU binder:
U 9160, U9800 as 2K-PU
Alberdingk Boley
Finish possibilities
1K paints and lacquersAS 2606, AS 2615 as basecoat or multilayerGood chemical resistance, hardness 2K paints and lacquersU 9800, U9160, PU binder as base- and
topcoats, excellent chemical resistance, hardness
AC 2598, AS 2799, AC binders as base-and topcoats, very good chemical resistance,
excellent hardness
Alberdingk Boley
Aluminium pigmented formulation based on AS 2615, AS 2606
Paint components:
• Binder• Cosolvents• Water• Defoamer• Alu pigment • Substrate wetting additive• Rheological additives
Recommended parameters:
Solid content: Basecoats: 15-25% Monolayer: 25-35% Chromeffect: 5-10% Cosolvents: AS types: ca. 20%
cosolvent on total formulation
Alu-Pigment: Alu pigment
concentrate!
Alberdingk Boley
Type of Aluminium Pigments (Shape)
Cornflake
Silverdollar
Stronger light scattering, more edgesLess metalic effect, more gray colour,Corneflakes, smaller particle size, wide particle size distribution
Stronger light reflexion, more brilliant colour
Silverdollar, rounder shapes
Narrow particle size distribution
Alberdingk Boley
Possible surface treatments :
Phosphororganic, pigment preparation only with water, excellent binder compatibility
Water + Solvent: Pigment preparation+ BG and PM fair good gasing stabiliy
Chromate , excellent continuous gasing stability, condens water stability, intercoat adhesion
Anorganic SiO2-Treatment, Sol-Gel Process, higher whiteness, v.good orientation, shearing stress and excellent gasing stability,intercoat adhesion, circular pipe line stability
Type of Alu Pigments (Surface treatment)Alberdingk Boley
•Good pigment orientation
•High gloss, brilliance
•High hiding power
•Bad pigment orientation
"Salt-and-Pepper” Effekt
Pigment orientation
Recommended rheological additives for good pigment orientation:
Acrylic thickener: Viscalex HV 30(Ciba), Latekol D (Basf)
Antisettling additives: Byk-420 (Byk), Disperlon Q-607, etc.
Alberdingk Boley
Alu Pigment preparation
Premix Aluminium Pigment concentrate with:Water/BG(1:1) + Additive Possible Additives:Dis-190 for organic traeted-Dis-180 or TegoWet 655 for inorganic treated
pigments
Dosage: 5-8% on Alu-Solid content
Important to avoid high shearforcess!
Alberdingk Boley
Car interior coatings
Substrates mainly: PA 6 , ABS-PC, PP Requirements : Very good adhesion Scratch resistance Alcohol and Fat
resistance Feel between velvet and
rubber for softfeel coatings
Alberdingk Boley
Car interior coatings
Product recommendation
Softfeel:
Polyurethane dispersions :U 610 , U 2101 ,
CUR 21
Acrylic dispersions: AC 2592, AC 2597
and their combinations!
Hard plastic:
Acrylic dispersion: AS 26090!!
Bodi
Alberdingk Boley
NEW!
Car interior coating; Softfeel paints
For good chemical and mechanical resistance softeel paints should be 2K systems!
• Recommended Hardeners:• Hydrophylic Isocyanates :• Bayhydur 2306; Bayhydur 3100• Bayhydur 2336• Basonat HW 100; Basonat HW 180PC• Rhodocoat WT 2102, Rhodocoat 803
Alberdingk Boley
Car outside / Basecoats
Requirements:
Excellent adhesion Recoatability Clarity , brilliance Good Alu pigment orientation
Car outside/ Basecoats Product recommendation:
Polyurethane dispersions : U 3251 , U 610 ( 1 and 2 K
systems)Polyurethane-Acrylic dispersion : APU 10120 (1 and 2 K systems)For 2K systems crosslinking with
hydrophilic isocyanates
Bodi
Alberdingk Boley
2-Komponent wb lacquer
1-K: OH functional acrylicsCrosslinkable groups containing PU binders
2-K:Hydrophilic, aliphatic isocyanatesCommercial Types from BASF, Bayer, RhodiaSilanesCarbodiimides
Alberdingk Boley
2-Component w/b lacquer
Benefit of crosslinking:similar to s/b systems:improved chemical propertiesbetter adhesionincreased abrasion resistance
Disadvantage : short pot life limited storage needs more attention
Alberdingk Boley
PVC- Window frames
Requirements:
Excellent adhesion Water resistanceVery good blocking resistanceGood pigment wetting
Alberdingk Boley
PVC- Window frames
Product recommendation : PU- AC dispersion : APU 10610
Combination with AC 2508 for blocking resistance improvement possible
Alberdingk Boley
Adhesion on difficult substrates
Alberdingk Boley
Adhesion on difficult substrates
Possibilities to work with adhesion promoters:
1. Use adhesion promoters as a separat primer
2. Add adhesion promoters directly to the primer as a paint component – more convenient-
e.g. in formulations based on AS 26090 we can add: 10-20% CPO 347W(Eastmann)
Alberdingk Boley
Targets for the futureTargets for the future
Low solvent containing and solvent free binders
Generally lowering of VOC Chemical resistance improvement Increasing of adhesion and scratch
resistance Easy to formulate binders
Alberdingk Boley
Thank you for your attention
Alberdingk Boley