New waxes for powder and wood coatings containing ...abrafati2019.com.br/2013/Dados/PDF/Paper_151.pdf · 26 Public, New waxes for powder and wood coating containing sustainable raw

Public

Tobias Niederleitner

BU Additives BL Waxes

Technical Marketing

Formulators/Coatings&Inks/ Adhesives

17.09.2013

New waxes for powder and wood coatings containing sustainable raw materials

ABRAFATI 2013

SAO PAULO

Tobias Niederleitner, BU Additives BL Waxes, Technical Marketing Formulators/Coatings&Inks/ Adhesives, 17.09.2013

Content

– Metallocene Polypropylene wax for powder coatings

– Sustainable wax additive for powder coatings

– Comparison Metallocene PP and sustainable source

– Polysaccharide additive for wood coatings

Public, New waxes for powder and wood coating containing sustainable raw materials2

Public



Technical Marketing


17.09.2013

Polypropylene and sustainable material for degassing in powder coatings



Metallocene Polypropylene

The micronized, Metallocene based PP wax has a mean particle size diameter of 8.0µm.

The Metallocene process enables narrow molecular weight distribution with advantageous

physical properties when molten like for powder coating applications.

Technical Data

Drop Point ºC ~ 140 °C

Acid Number 0 mg KOH/g

Density at 20ºC 0,90 g/cm3

Particle Size µm d50 ~ 8.0d90 ~ 15

Description


Properties of micronized Metallocene PP


88 % of the particles have a Circularity > 0,9

Circularity of 0,9

CircularityCE Diameter [µm]


Benefits of Metallocene PP


The unique combination in properties is offering a wide spectrum of effects like:

• anti slip properties

• adhesion improvement

• degassing effects

• increased matting

In various powder coating systems.



Anti slip properties of Metallocene PPin Powder Coatings

0,7

0,8

0,9

Without wax 0,5% Metallocene PP 1,0% Metallocene PP 2,0% Metallocene PP

coefficient of friction

Conditions: 15D laboratory twin-screw extruder;

mass temperature at exit approx. 118 °C; torque approx. 60 %; hybrid system (70/30)

Increasing COF with addingPP material

Possibility to create anti slip surfaces

Measurement based on Internal method


Adhesion improvement with Metallocene PP


• without wax: Silicon based sealant was easy to peel of adhesion failure

• 0,5% PP: only a small piece of the sealant remainedadhesion failure

• 1,0% PP: Sealant was partly destroyedadhesion and cohesion failure

• 2,0% PP: Sealant was unable to remove cohesion failure


Metallocene PP degassing effect


Microscopic pictures show the reduction of pinholes by increasing dosage of PP

100µm

1,0% 2,0%0,5 %

pinhole

100µm 100µm


Metallocene PP influence on gloss


0

20

40

60

80

100

Without wax 0.5% 1,0% 2,0%

gloss level 20°

Metallocene PP

FT wax

Conditions: 15D laboratory twin-screw extruder;

mass temperature at exit approx. 118 °C; torque approx. 60 %; hybrid system (70/30)


Metallocene PP


Benefits

• increased antislip properties

• acts as a degassing agent in powder coatings

• improved adhesion of sealants

• increased matting

Target Markets

Powder coatingsCohesion break of silicone sealant



Sustainable sourceDescription

The sustainable source consists of sugar molecule combined with fatty acids. This

composition behaves like wax and can be micronized. The mean particle size diameter is

about 6.0µm. The low melt viscosity wax shows outstandingly effective properties in

powder coating applications.

Technical Data

Drop Point ºC ~ 130 °C

Acid Number ca. 8 mg KOH/g

Particle Size µm d50 ~ 6.0

d90 ~ 15


Sustainable source


The combination in properties is offering a wide spectrum of effects like:

• High gloss

• Excellent degassing effect

• High water repellence effect

In various powder coating systems.


Sustainable source`s influence on gloss


50

60

70

80

90

Without wax PP wax FT wax Amide wax PE wax Sustainablesource

gloss level 20°

Conditions: 15D laboratory twin-screw extruder;mass temperature at exit approx. 118 °C; torque approx. 60 %; hybrid system (70/30); wax content 2,0 %


Sustainable source


Benefits

• High gloss

• acts as a degassing agent in powder coatings

• High water repellence effect

Target Markets

Powder coatings

Pinholes without using

degassing agents

No pinholes with

2% sustainable material


Waxes for degassing effect


matting gloss

Polypropylene wax Sustainable sourcevs


Surface properties Metallocene PP and Sustainable source


Determination of surface energy with sessile drop method- Measurement of contact angle- OWRK* analysis to evaluate polar and disperse fraction

Conditions:

hybrid system (70/30); wax content 2 %

Liquids for determination

Thiodiglycol

Diiodomethane

Ethylenglycol

Water

* Owens, Wendt, Rabel and Kaelble method




0

5

10

15

20

25

30

35

40

Without Wax Amide wax Sustainable source Metallocene PP Silicone

Sur

face

Ene

rgy

[mN

/m]

Surface Energy, Polar and Disperse Fractions

Surface Energy

Polar

Disperse

Metallocene PP lowers the surface energyPolar and disperse fractions are similar to silicone sealant`s distribution

=> good adhesion




High contact angle means high water repellence

Sustainable source showed the best water repellence

0

20

40

60

80

100

120

Without Wax Ceridust 3910 Ceridust 6050 M Ceridust 7820 TP

cont

act a

ngle

[°]

Contact Angle of Water

Conditions:

hybrid system (70/30)

wax content 2,0%

Sustainable additive

Metallocene PPAmide wax


Metallocene PP vs Sustainable source


Sustainable source• Excellent degassing effect• For high gloss applications• Increased anti-stick properties• Lower coefficient of friction• Based on renewableraw materials

Metallocene PP• Excellent degassing effect• For matt surface applications• Increased adhesion on the surface• Increased coefficient of friction• PP based

Public



Technical Marketing


17.09.2013

Polysaccharide additive for wood coatings


What is a Polysaccharide?


Polysaccharide consist of many monosaccharide. These monosaccharide are linked with so called glycosidic linkages. There are plenty of different possibilities and combinations. The pictures show just examples of the most common monosaccharide and the 1,4 glycosidic linkage of glucose.

Further common monosaccharide (hexose): rhamnose, mannose, galactose, altrose, …

Glucose PolysaccharideFructose


Polysaccharide additive

The micronized Poysaccharide is an additive for wood coatings with a mean

particle size diameter of approximately 30µm and no melting point. The nature of

this micronized Polysaccharide creates a smooth and soft touch surface like

untreated wood. With this additive there is no compromise between wood touch

and protection by a coating. By adding this Polysaccharide you can increase the

coefficient of friction combined with outstanding scratch resistance performance

especially in water based formulations.



Performance of Polysaccharide additive


Increased coefficient of friction in

comparison to standard waxes in a

water based Polyurethane lacquer

Even with an increased coefficient of friction

compared to standard waxes the Polysaccharide

showed an absolutely strong scratch resistance

performance in a water based PUR system

0,0

0,2

0,4

0,6

0,8

withoutwax

FT Wax PE Wax MontanWax

ModifiedPE Wax

Ceridust8090 TP

Scratch resistance performance [N]

0,4

0,5

0,6

0,7

0,8

withoutwax

FT Wax PE Wax MontanWax

ModifiedPE Wax

Ceridust8090 TP

Coefficient Of Friction (COF)

Poly-saccharide

Poly-saccharide

Measurement based on Internal method


Polysaccharide additive


Benefits

- natural wood touch surface

- increased coefficient of friction

- outstanding scratch resistance performance

- structured surfaces possible

- 100% sustainable raw material

- suitable especially for water based formulations


For additional information please contact us


Questions ? Antonio Carlos FerracioliSales Coordinator LATAMClariant [email protected]

Tobias NiederleitnerTechnical Marketing WaxesClariant Produkte (Deutschland) GmbH [email protected]

Documents

New waxes for powder and wood coatings containing ...abrafati2019.com.br/2013/Dados/PDF/Paper_151.pdf · 26 Public, New waxes for powder and wood coating containing sustainable raw