Transcript ALBERDINGK BOLEY GmbH

Alberdingk Boley
ALBERDINGK BOLEY
GmbH
Düsseldorfer Str. 53
47829 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
www.alberdingk-boley.com
Waterborne plastic coatings
by Magdalena Bodi
178 years History
Alberdingk Boley
1828 Production of oils (linseed and
castor)
1970 Start with WB binders:
Acrylic dispersions
1985 Polyurethane dispersions
1998 Production of adhesives
2000 Alberdingk Boley Inc., NC, USA
2004 Production in Greensborough,
USA
2006 Alberdingk Boley in China
Alberdingk Boley
Contents
• Company introduction
• Binder types, characteristics, film
formation
• Application field plastic coatings
Required properties
Product recommendation
Nature of AB dispersions
What are really this binders??
Alberdingk Boley
• 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
Optical appearance of the
dispersion
Alberdingk Boley
Particle size:
Acrylic
PUD
PUD
> 1µm:
milky white
1µm – 0,1µm
brownish white
appearance
0,1µm - 0,05 µm
semi-transparent
< 0,05 µm
almost transparent
Film forming mechanism
Alberdingk Boley
 Aqueous polymer dispersion
(Solid Content: 30-60%)
Stage I
Evaporation of water
 Arrangement of particles, close
contact
 Deformation of the polymer
particles
Stage II
Stage III
Stage IV
Particle deformation, T > MFFT
 Surfaces of polymer particles
are disappearing: polymer
chains intermix
Coalescence
 Polymer interdiffusion, leading
to a mechanical stable polymer
film
Interdiffusion of polymer chains
MFFT °C
Alberdingk Boley
MFFT reduction with different
coalescing agents for AS 2615
70
BG
BDG
60
DPnB
DPM
50
FSB
EDG
40
30
20
10
0
0
5
10
15
Cosolvent %
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 binder for plastic
coatings
• 2K
• 1K
Alberdingk Boley
Styrene Acrylics:
AS 2615; AS 2606,
AS 26090
Pure Acrylic:
AC 2508
AC-PU hybrids
APU 10610
APU 10351
Polyurethane:
U 610, U 5200, U 3251
OH-fuctional acrylics:
AC 2598; AC 2597
AC-PU hybrids:
APU 10610; APU 10120;
APU 10351
Polyurethane:
U 610, U 5200, U 3251 for
flexible substrates
U 9160; U 9800 for hard
substrates
Alberdingk Boley
Application fields
• Hifi , TV-Sets , Mobile phones,
Computers, etc.
• Car interior : different plastic
parts, softfeel and nonsoftfeel
• Car exterior:
Basecoats
Wheel cover
Alberdingk Boley
Requirements
Very good adhesion
Alu-pigment
orientation
Alcohol- und fat
resistance
Scratch resistance
Substrates : ABS , PS
ABS-PC, PC
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
Alberdingk Boley
Computer-, TV, HIFI cases
Product 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 lacquers
AS 2606, AS 2615 as basecoat or multilayer
Good chemical resistance, hardness
2K paints and lacquers
U 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
Stronger light scattering, more edges
Less metalic effect, more gray colour,
Corneflakes, smaller particle size, wide
particle size distribution
Stronger light reflexion, more brilliant
colour
Silverdollar
Silverdollar, rounder shapes
Narrow particle size distribution
Alberdingk Boley
Type of Alu Pigments
(Surface treatment)
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
Pigment orientation
Alberdingk Boley
•Good pigment orientation
•High gloss, brilliance
•Bad pigment orientation
"Salt-and-Pepper” Effekt
•High hiding power
Recommended rheological additives for good
pigment orientation:
Acrylic thickener: Viscalex HV 30(Ciba), Latekol D
(Basf)
Antisettling additives: Byk-420 (Byk), Disperlon Q607, etc.
Alberdingk Boley
Alu Pigment preparation
Premix Aluminium Pigment concentrate with:
Water/BG(1:1) + Additive
Possible Additives:
Dis-190 for organic traetedDis-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:
NEW!
Acrylic dispersion: AS 26090!!
Bodi
Alberdingk Boley
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
Car outside / Basecoats
Requirements:
Excellent adhesion
Recoatability
Clarity , brilliance
Good Alu pigment orientation
Alberdingk Boley
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 acrylics
Crosslinkable groups containing PU binders
2-K:
Hydrophilic, aliphatic isocyanates
Commercial Types from BASF, Bayer, Rhodia
Silanes
Carbodiimides
Alberdingk Boley
2-Component w/b lacquer
Benefit of crosslinking:
similar to s/b systems:
improved chemical properties
better adhesion
increased abrasion resistance
 Disadvantage :
short pot life
limited storage
needs more attention
Alberdingk Boley
PVC- Window frames
Requirements:
Excellent adhesion
Water resistance
Very good blocking
resistance
Good 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
conveniente.g. in formulations based on AS 26090 we can
add: 10-20% CPO 347W(Eastmann)
Alberdingk Boley
Targets 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