ALBERDINGK® AC 2403 - twanfong.com primers , DTM finishes , Stain blocking coatings, adhesion...

ALBERDINGK® AC 2403

– A super hydrophobic Acrylic resin which provides very dense film

formation for applications with high barrier properties required, like anti

corrosion primers , DTM finishes , Stain blocking coatings, adhesion

primers

Customer Seminar,

Shunde, 23rd, Sept., 2014

Shanghai, 25th, Sept., 2014

Chart

Table of contents

1. Introduction for super-hydrophobic binder ALBERDINGK AC2403

• Product data

• Polymerization of ALBERDINGK® AC2403

• Benefits of two phase acrylic dispersions

• Morphology of ALBERDINGK® AC 2403

2 . Application examples for ALBERDINGK® AC 2403

• Anti-corrosive applicaiton

• Semi-gloss pigmented white top coats for furniture coatings

• Stain locking primers

• Base coats for pigmented outdoor wood coatings

• Adhesion coats on glass, aluminum as oven stoving paints

3. Summary

2 © Alberdingk Resins (Shenzhen) Co., Ltd. | AC 2403 - A super hydrophobic acrylic resin

Chart

ALBERDINGK® AC 2403 product data

self-crosslinking and adhesion promoted two phase acrylic dispersion

Solids-content: 46 - 48 %

pH-value: 7.0 – 8.0

Viscosity: 700 - 3000 mPas

MFFT: approx. 16°C


Chart

Polymerization of hydrophobic ALBERDINGK® AC2403

A type of Hydrophobic Emulsion Polymer

Select:

• Hydrophobic monomers

• Reduce emulsifier content, use as less as possible

• Reduce polymerization initiator content

• super water resistance

• super intercoat layer adhesion

• Very high barrier properties (almost no water absorption and

water vapour transmission)

© Alberdingk Resins (Shenzhen) Co., Ltd. | AC 2403 - A super hydrophobic acrylic resin 4

Chart

Benefits of two phase acrylic dispersions

• Low MFFT combined with high surface hardness

• Less VOC demand in formulations

• Fast drying and high blocking resistance

• High level of elasticity

• Fast sandability


Chart

Morphology of ALBERDINGK® AC 2403

ALBERDINGK® AC 2403 – approx. 5 nm Conventional „CS “ Acrylic – approx. 50 nm

coarse structure fine (dense) structure


Chart

1. ALBERDINGK® AC 2403 anti-corrosive applicaiton —— concept

Advantage of fine film structures

Fine film structure leads to:

• Better film formation

• Dense film

better barrier properties!

• Almost no migration of water/water vapour through.

• No water or oxygen can permeate onto the metal substrate.

• No corrosion on the surface!


Chart

Competitor 62

1. ALBERDINGK® AC 2403 anti-corrosive applicaiton / DTM – 432 h neutral salt spraying test (NSST)


Competitor 100

Strong corrosion & blisters

AC 2403

Corrosion only at cut

Chart 9

1. ALBERDINGK® AC 2403 anti-corrosive applicaiton / DTM – 1442h NSST

Ca. 45um DFT, Gardobond OC

panel

Ca. 140um DFT, sand

blasted steel

Ca. 90um DFT,

Gardobond OC panel

FP 2403-25 anti-corrosion coatings, PVC approx. 21.8%, also suitable for sandblasted steel

FP 2403-28 anti-corrosion coatings, PVC approx. 11%, solids approx. 50%


Chart

1. ALBERDINGK® AC 2403 anti-corrosive applicaiton / formulation guidelines

Grinding / dispersing

• don’t grind in the dispersion.

• add dispersion in the let-down phase.

PVC levels

• hard polymer phase of the particle acts like a filler / extender in your formulation

• limit the maximum PVC levels of ALBERDINGKR AC 2403 (≤25% PVC.)


Chart


Choice of pigments / extenders / functional anti-corrosive

• use talc or mica based (lamellar fillers) for best water barrier

• Bariumsulfate (e.g. Blanc fixe micro) will not compromise gloss levels.

• no additional benefit by using anticorrosive pigments like zinc phosphates

• anticorrosive pigments are labelled as “hazardous to the environment” (N)

• they may harm the stabilisation system of polymer dispersions

(due to e.g. Ca2+ , Zn2+, Ba2+ or Sr2+ Ions)

• Will decrease the gloss of the corresponding coating films.

• Anticorrosive pigments can be a handicap for cost efficient corrosion protection.


Chart


Dispersants choice

• choice of dispersant not only affects

gloss and corrosion resistance but

also adhesion properties and film

hardness.

• Our standard recommendation is

Orotan 165 or Edaplan 490

(Münzing Chemie)


Chart


Pigment pastes

• For colours like black , the choice of dispersants is even more critical

• high amount of (hydrophilic) dispersants

• The following types are recommended for full colour black or tinting :

- Monolite black XBE-HD (Heubach pigments)

- Colanyl N 500 (Clariant)

- Colormatch 50-990-20966 (Plasticolor Inc.)

- UCD 1625 E (Plasticolor Inc.)

Coalescent types / levels

• 2-5% co-solvent on the total formulation

• Butylcellosolve and Texanol Liquid anti-corrosion additives

Liquid anti-corrosion additives

ASCONIUM® additives are able to improve the long term corrosion resistance since they improve

the adhesion property at the scribe.


Chart

1. ALBERDINGK® AC 2403 anti-corrosive applicaiton / FP2403-28 anti-corrosion white pigmented lacquer


Chart

2. Semi-gloss pigmented white top coats for furniture coatings/ stain resistance

Challenge: stain resistance against

• Green tea

• Coffee

• Red wine

• Cola

• vinegar


Chart


AC2714 40% + AC 2403 9.2%

coffee | green tea | cola | vinegar | red wine

1 h 16 h


Test of chemical resistance

Drying: 3 days at 40 degrees C, test after 1h and 16h

Chart



Summary of chemical resistances:

semi-gloss white pigmented coatings

25% ammonia

Chart

Remark: SMQ is Shenzhen Academy of Metrology and quality inspection

Pos. Raw Material Amount Product Supplier

1 Alberdingk® AC2714 40 Acrylate dispersion Alberdingk Boley

2 Alberdingk® AC2403 9.2 Acrylate dispersion Alberdingk Boley

3 Tego Foamex 825 0.6 defoamer Tego

4 DPnB 5 Co-solvent Commercial

5 PG 1 Anti-freezer Commercial

6 water 18.3

7 TegoViscoPlus3010 0.4 Thickener Tego

8 Ceraflour929 2 Matting wax BYK

9 R706 dispersion paste* 23 TiO2 paste

10 Tego wet 270 0.1 Wetting agent tego

11 Tego ViscoPlus3030 0.4 Thickener Tego

Total 100.00

2. Semi-gloss pigmented white top coats for furniture coatings/FP2714-sz3 based on AC2714/AC2403


Chart


Pos.

Raw Material Amount Product Supplier

1 water 12.7

2 Tego Dispers735w 7.5 Dispersing agent Tego

3 Tego foamex 825 0.4 Defoamer Tego

4 R706 75 TiO2 Dupont

5 water 4.2

6 BYK420 0.2 anti-settling BYK

Total 100.00

* attached：R706 dispersion paste



Chart




60 °Gloss

hardness

Vinegar

Green tea

qualified

qualified

qualified

normal

normal

Specification Test results conclusion

Inspection results in SMQ according with GB/T23999-2009:

Chart

3. stain locking primers /For tropical wood


Tropical wood contains rich water soluble tannin, and high content oil

Alberdingk® AC2403 showed:

• better immediate and long term non-discoloration of white top coat by efficientlytannin stain locking

• excellent long term intercoat adhesion, even on high oil contained substrate

with AC 2403 (FP 2403-10) VS. with standard acrylic

Chart

3. stain locking primers /For MDF

Beside of rich hydrophilic tannin stain inside, MDF is also easily get swelled up and grain rising on surface after applying with w/b paints.

Alberdingk® AC2403 showed:

• Best non-discolouration of white top coat.

• very good smooth surface after applying topcaot due to minimal grain rising

Substrate： MDF

Clear primers:

100g/m2×2layers by brush,

AC2782 white topcoat:

100g/m2×1layer by spray.

Dry condition: 70°C x 24h

Comp.1 Comp.4 Comp.3 AC2403 Comp.2


Chart

3. stain locking primers /For the scab part of pine wood

Substrate： scab part of pine wood

primer lacquers:

100g/m2×2layers by spraying


100g/m2×1layer by spraying

Dry condition: 70°C×7days

Pine wood scab contains rich hydrophobic pine resin, what is easily to migrate out of the film, especially stocking at high temperature.

Stain locking results after 70°C x 7days:

All have got yellowing, and AC2403 ≈ AC2742 ≥ AC31 ≈ AC25222

1k, AC2403 1k, AC2742

1k, AC31 1k, AC25222


Chart

Compare locking ability of 2K system based on AC2598,AC2742,AC31,AC2403 separately on pine wood scab

Stain locking results for these 2k clear primers after 70°C x 30 days:

AC2598 is the best, still no yellowing. Other three are: AC2403 ≥ AC2742 ≈ AC31

3. stain locking primers /For the scab part of pine wood

2k, AC2742 +

6% Bayhydur305

2K, AC2598 + Bayhydur305

(NCO/OH=1.2)

2k, AC31 + Bayhydur305

(NCO/OH=1.2)

2K, AC2403 + 6%

Bayhydur305

Substrate： scab part of pine wood

primer lacquers:

100g/m2×2layers by spraying


100g/m2×1layer by spraying

Dry condition: 70°C×30 days


Chart

4. Base coats for pigmented outdoor wood coatings /For enhanced exterior durability

Weathering Resistance (EN927): 2016h QUV, on oak

Panels have same primer and same top coat!

Commercial intermediate coat Intermediate coat based on AC 2403 (TF 07)


Chart

4. Base coats for pigmented outdoor wood coatings /For enhanced exterior durability

Weathering Resetance (EN927): 2016h QUV, on oak

Panels have same primer and same top coat!

Commercial intermediate coat Intermediate coat based on AC 2403 (TF 02)


Chart

5. Adhesion coats on glass, aluminum as oven stoving paints /2K baking lacquers with MFR

• 2-components baking system

Cross-linking with water-soluble melamine formaldehyde resin (MFR), such

as MF921 from INEOS

• curing condition

Temperature: depending on MFR,

e.g. 110~160°C

Curing time: 20~30min


Chart

5. Adhesion coats on glass, aluminum as oven stoving paints/Part A of FP 2403-sz1


FP 2403 –sz1 2k baking clear gloss lacquer, for aluminum, glass

Part A :

Pos. 4~10: pre-mixing.

Chart

5. Adhesion coats on glass, aluminum as oven stoving paints / Part B of FP 2403-sz1


FP 2403 –sz1 2k baking clear gloss lacquer, for aluminum, glass

Part B :

Pos.3: to adjust PH to 7.5 ~8.0

Applying ratio: Part A / Part B = 100 / 13.6

Pot life: above 24 hours

Curing condition: 120~130°C x 30min

Pencil Hardness on glass: HB~F

MFR INEOS

Chart

FP 2403-sz1 2k baking clear gloss lacquer Adhesion (0 is best, 5 is worst):

5. Adhesion coats on glass, aluminum as oven stoving paints


0

1

2

3

4

5

Chart

5. Adhesion coats on glass, aluminum as oven stoving paints


FP 2403–sz1 2k baking clear gloss lacquer + 1% BioWet60G (adhesion promoter, from ADD APT) Adhesion (0 is best, 5 is worst):

0

1

2

3

4

5

Chart

5. Adhesion coats on glass, aluminum as oven stoving paints /Full color or tinting color system

Good compatibility with :

• Colanyl® color pastes,

• Hydrolan® metallic pastes, etc.


Chart

Summary for Alberdingk® AC2403

Waterborne super-hydrophobic acrylic dispersions have super barrier properties which

sets

• The benchmark for corrosion resistance (1K acrylics, for DTM)

...which improve

• Chemical resistance (as top coats)

• Stain resistance (as top coats)

• Weathering resistance ( as base coats)

• Adhesion on oily substrates

• Adhesion on mutil-substrates, such as glass, and aluminum

… which reduce

• Grain raising (as primer)

… and which

• lock stains , e.g. Tannin (as primer), without negative side aspects of Zn2+ ions.


Thank you for your attention!

For more details, please contact with us

Fred Zhong 钟良福

Senior Engineer

15919879362

[email protected]

mailto:[email protected]

ALBERDINGK® AC 2403 - twanfong.com primers , DTM finishes , Stain blocking coatings, adhesion...

Documents

Transcript of ALBERDINGK® AC 2403 - twanfong.com primers , DTM finishes , Stain blocking coatings, adhesion...