RadTech Europe 2017 · RadTech 2017 Page 19 BYK, Petra Lenz New Development Sophisticated Structure...
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Sophisticated Structures in Additive Developments RadTech Europe 2017 Petra Lenz, BYK-Chemie, Technical Support Manager Paint Additives
Transcript of RadTech Europe 2017 · RadTech 2017 Page 19 BYK, Petra Lenz New Development Sophisticated Structure...
Sophisticated Structures in Additive Developments
RadTech Europe 2017
Petra Lenz, BYK-Chemie, Technical Support Manager Paint Additives
Sophisticated Structures in
Additive Developments
RadTech 2017
Page 2
BYK, Petra Lenz
Sophisticated structuresBenefits for Radiation Curing systems
Solvent-free additives /
low viscosity
High efficiency /
compatibility
Branched structures /
high functionality
Sophisticated Structures in
Additive Developments
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BYK, Petra Lenz
Hyper-branched Wetting & Dispersing AdditivesLow viscosity, solvent-free
Conventional linear structure*:
Viscosity: ∞Hyper-branched structure*:
Viscosity: 13.000 mPa.s
*Mn: ~ 20.000 g/mol
Hyper-branched structure
Linear structure
Sophisticated Structures in
Additive Developments
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BYK, Petra Lenz
Linear Structure:
1. Random linear co-polymer
with „free“ aminic groups
Hyper-branched structures:
2. Spherical polymer with
„sterically hindered“ aminic groups
3. Core-shell-structured polymer
with „encapsulated“ aminic coreR2N NR2
NR2R2N
NR2 NR2 NR2 NR2 NR2NR2NR2
NR2
NR2
R2N
NR2
Hyper-branched Wetting & Dispersing AdditivesImproved Pigment stabilization
Sophisticated Structures in
Additive Developments
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BYK, Petra Lenz
Sophisticated structuresGloss reduction of Radiation Curing systems
Biopolymerwax
Silica matting agent
Silica + additive
Sophisticated Structures in
Additive Developments
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BYK, Petra Lenz
Biopolymer versus Silica Matting AgentsGloss reduction / Transparency
BiopolymerWax *
* Biopolymer based on renewable resources, improved matting efficiency and haptic without increased viscosity
Silica mattingagent
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Additive Developments
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Biopolymer versus Silica Matting AgentsViscosity in UV systems
0
500
1000
1500
2000
2500
3000
3500
Biopolymer Silica Biopolymer / Silica, 1:1
Viscosity, mPas
5% 7,50%
Viscositymeasurement:
RHEOPLUS/32
V3.62;CP25-1; 10 s-1
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Additive Developments
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BYK, Petra Lenz
Wetting & Dispersing Additives and Silica Matting AgentsViscosity reduction / Orientation
Silica matting agentSilica matting agent +
W&D additive
Sophisticated Structures in
Additive Developments
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BYK, Petra Lenz
Sophisticated structuresGloss reduction of Radiation Curing systems
Wetting & Dispersing Additives
• specifically developed to disperse silica-based matting agents in
• high solid coatings systems
• solvent-free coatings systems
• significantly reduction of viscosity which simplifies
• incorporation of even high amounts of silica-based matting agents,
• handling,
• final application of matt coatings
• orientation
• uniform matting
• smoother surface
Sophisticated Structures in
Additive Developments
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BYK, Petra Lenz
Sophisticated structuresGloss reduction of Radiation Curing systems
Viscosity reduction / Orientation
Block CopolymerCPT
Specialist for untreated
Silica
Specialist for non treated
Silica
Hyper-branched Copolymer
Sophisticated Structures in
Additive Developments
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BYK, Petra Lenz
Sophisticated structuresSpecialist for surface-treated Silica
pigment affinic groups
binder compatibility
modification to improve stabilization of silica
Silica
Silica
* Controlled Polymerization Technology,
Solvent-free acrylic copolymer, 60% active substance in PPG, Amine value in mg KOH/g: 66
Modified Block copolymer
by CPT *
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Additive Developments
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BYK, Petra Lenz
Sophisticated structuresSpecialist for non-treated Silica
Hyper-branched
Copolymer *
* Hyper-branched core shell structure, 60% in DPGDA, Amine value: 13 mg KOH/g
Hyper-branched core
interaction with matting agent surface
Functional groups
additional affinity to silica particles
Functional groups
improved anti-settling properties
SilicaSilica
Silica
New development:
perfectly tailored for highest affinity
to silica-based matting agents
Sophisticated Structures in
Additive Developments
RadTech 2017
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BYK, Petra Lenz
New Development Sophisticated Structure
Specialist for deep matt systems
• core and additional functional groups create a dense additive shell around the particles
- outstanding viscosity reduction and highest matting agent load possible
• outer functional groups associate with each other via hydrogen bonding
- leading to a microscopic structure formation in order to improve anti-settling properties
Hyper-branched core provides excellent
interaction with matting agent surface
Additional functional groups attached to
the core improve affinity to silica particles
Functional groups at the shell lead to improved
anti-settling properties
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Additive Developments
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BYK, Petra Lenz
New sophisticated StructureKey Benefits
• Excellent dispersion and stabilization of treated or untreated silica-based matting agents
• Excellent viscosity reduction with minimal thixotropic flow properties (Newtonian flow behavior)
• Possible to add large quantities of matting agents perfectly suited to producing deep matt coatings with a good processing viscosity
• Significantly improved matting
• Extremely good compatibility with all common oligomers and monomers
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Additive Developments
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BYK, Petra Lenz
New DevelopmentExcellent Stabilization / Orientation of untreated silica matting agents
Control New DevelopmentStandard
Gloss, 60°: 15 10 8
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Additive Developments
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New DevelopmentImproved Leveling due to Superb Viscosity Reduction
Control New developmentStandard
Leveling: very poor poor excellent
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Additive Developments
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BYK, Petra Lenz
New DevelopmentStrong Viscosity Reduction, UV system + 12% untreated Silica
Test system:
Solvent-free UV-system, Polyesteracrylate / DPGDA
12% untreated Silica matting agent, particle size d50: 10.0 µm, oil absorption: 360 g/100g
Additive dosage: 10% solids on matting agent
0
300
600
900
1.200
1.500
1.800
0,1 1 10 100 1000
Viscosity [Pa∙s]
Shear rate [s-1]
Standard 1
Standard 2
New Development 2158
0
2
4
6
0,1 1 10 100 1000
Viscosity
Shear rate [s-1]
New Development 2158
Viscosity [Pa∙s]
Viscositymeasurement:
RHEOPLUS/32
V3.62;CP25-1; 0.1 – 1,000 s-1
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BYK, Petra Lenz
New Development Outstanding Efficiency at Low Additive Dosage, UV system + 15% Silica
0
5
10
15
20
Viscosity [Pa∙s] Standard 1 Standard 2 New Development 2158
Test system:
Solvent-free UV-system, Polyesteracrylate / DPGDA
15% untreated Silica matting agent, particle size d50: 14.5 µm, oil absorption 260 g/100g
* Additive dosage: 2,5-10% solids on matting agent
10%* 5%* 2.5%* 10%* 5%* 2.5%* 10%* 5%* 2.5%*
Gloss, 60°: 9-12
25µm draw down
Viscosity measurement:
RHEOPLUS/32
V3.62;CP25-1; 0.1 – 1,000 s-1
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Additive Developments
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BYK, Petra Lenz
New Development Sophisticated Structure
Specialist for deep matt systems
• provides excellent dispersion and stabilization of
• untreated and
• treated silica-based matting agents
• shows excellent viscosity reduction with minimized thixotropicflow properties (Newtonian flow behaviour) at high matting agent load
• improves the matting properties of solvent-free UV-curing systems
• offers broad compatibility in commonly used oligomers and monomers
Tailor-made solution for 100% UV-curing systems
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Additive Developments
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BYK, Petra Lenz
Thank You for Your Attention. Have a chat with us at our booth!
Sophisticated Structure
Silica matting agent
Silica + Additive
Sophisticated Structures in
Additive Developments
RadTech 2017
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BYK, Petra Lenz
ACTAL®, ADD-MAX®, ADD-VANCE®, ADJUST®, ADVITROL®, ANTI-TERRA®, AQUACER®, AQUAMAT®,
AQUATIX®, BENTOLITE®, BYK®, BYK®-DYNWET®, BYK®-SILCLEAN®, BYKANOL®, BYKETOL®,
BYKJET®, BYKO2BLOCK®, BYKOPLAST®, BYKUMEN®, CARBOBYK®, CERACOL®, CERAFAK®,
CERAFLOUR®, CERAMAT®, CERATIX®, CLAYTONE®, CLOISITE®, DISPERBYK®, DISPERPLAST®,
FULACOLOR®, FULCAT®, GARAMITE®, GELWHITE®, HORDAMER®, LACTIMON®, LAPONITE®,
MINERAL COLLOID®, MINERPOL®, NANOBYK®, OPTIBENT®, OPTIFLO®, OPTIGEL®, PAPERBYK®,
PERMONT®, PRIEX®, PURE THIX®, RHEOCIN®, RHEOTIX®, SCONA®, SILBYK®, TIXOGEL®,
VISCOBYK® and Y 25® are registered trademarks of the BYK group.
The information herein is based on our present knowledge and experience. The information merely
describes the properties of our products but no guarantee of properties in the legal sense shall be
implied. We recommend testing our products as to their suitability for your envisaged purpose prior to use.
No warranties of any kind, either express or implied, including warranties of merchantability or fitness for a
particular purpose, are made regarding any products mentioned herein and data or information set forth, or
that such products, data or information may be used without infringing intellectual property rights of third
parties. We reserve the right to make any changes according to technological progress or further
developments.
