Performance Additives for Thermoplastic Evonik …...2 TEGOMER® and TEGOPREN® Additives for...

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Performance Additives for Thermoplastic

Elastomers

Evonik Nutrition & Care

Interface & Performance

Technical Service Polymers

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TEGOMER® and TEGOPREN® Additives for Thermoplastic Elastomers

Scratch resistance

TEGOMER® 6264▪ 2-3% used for

TPE, TPO, or TPES▪ Pellet form

TEGOMER® AntiScratch L▪ 2% use level especially

for TPES▪ Liquid, can be premixed

with oil used in TPES

Melt flow enhancer

TEGOMER® M-Si 2650▪ 2% use level for TPE,

TPO and TPES▪ Liquide

TEGOMER H-Si 6441P▪ 2% used for all elastomers

even TPEE, TPEA and prevents degradation ofTPU

▪ Pellet form

Flame resistance

TEGOMER® V-Si 4042▪ 1-2% used in HFFR

compounds, e.g. in cablecompounds or membranesbased on PE/TPO orPE/EVA

▪ Liquid

TEGOPREN® 6875▪ 1% calculated on

inorganic/organic FR ▪ Used in FR applications of

various elastomers▪ liquid

COF reduction + improved

TEGOMER® M-Si 2650▪ 1-2% used in TPES,

TPEV, TPEO, TPEE▪ Liquide

haptics

TEGOMER® H-Si 6441P▪ 0.5-2% used in TPEO,

TPEV, TPEE, TPU▪ Pellet form

Demolding

TEGOMER® H-Si 6441P▪ 0.25-0.50% used in

various elastomers asinternal release agent

▪ No influence on coatability or abrasion

▪ Pellet form

Malodor absorber

TEGO® Sorb P.Y. 88▪ 1-2% used in TPE-V and

for recycling approch ofvarious elastomers

▪ Pellet form

| Performance Additives for Thermoplastic Elastomers

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Our Core Technology –Organo Modified Siloxanes (OMS)

Organic grafts

provide compatibility

with matrix

Siloxane backbone

provides high

surface activity

Organo modified siloxanes overcome the disadvantage of PDMS by the introduction of organic groups on the

siloxane backbone generating a permanent implementation in thermoplastic and elastomeric polymers.


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EPDM

Ethylene Propylene Diene Monomer

PP

Polypropylene

TPE-V and TPE-O grades are mixtures of

thermoplastic PP with rubber-like EPDM areas.

The meltability of the thermoplastic enables

an easy processing by standard extrusion and

molding techniques. The rubber, on the other

hand, provides elasticity and softness.

Compounded TPE-V and TPE-O Grades


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extrusion head

pressure [bar]

torsional

moment [A%]

2% Additiv

MFI (190°C/10 kg)

[g/10 Min]

Evonik additives allow a significant increase of the MFI and thus an improved melt flow during moulding

operations. The MFI of a TPE-V cannot directly be correlated to melt flow spiral length.

10

15

20

25

30

35

TEGOPREN®

6846

66

TEGOMER®

M-Si 2650

43

TEGOMER®

V-Si 4042

45

TEGOMER®

H-Si 6441P

65

without

Additive

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OMS for improved ProcessingTPE-V Automotive Application

TPE-V grade for molding

bar

/ A

%


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OMS for improved ProcessingMelt Flow Index vs. Mold Filling

OMS orientate to internal surfaces working as an internal lubricant in high shear operations improving mold filling

even at high pressure and injection speed.

MF

I [1

90

°C/5

kg] / M

FL [cm

]

0

5

10

15

20

25

30

35

40

45

No Additive 2 % TEGOMER®H-Si 6441P

4 % TEGOMER®H-Si 6441P

2 % TEGOMER®AntiScratch L

2 % TEGOMER®AntiScratch 100

2 % TEGOMER®M-Si 2650

TPE-V Grade for injection molding with 50 Shore A

MFI [190°C/5kg]

Melt Flow Length 20Bar [cm]

Melt Flow Length 40Bar [cm]

+ 1

7%

3.6

cm

+ 1

0%

3.6

cm

MF

I +

34

units


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TEGOMER® M-Si 2650 is already very suitable with 0.5%.

TEGOPREN® 6875 and TEGOPREN® 6846 have to be used with 2.0%.

0.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

0.20

without

Additive

H-Si 6441P M-Si 2650 TP 6846 TP 6875

TPE-V grade for extrusionReduction of COF on Glass

[cN

/g]

0.5% Additive

2.0% Additive


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TEGOMER® in TPE-VAdditive with Long Lasting Effect and no Migration

+ 0.5% fatty

acid amide

+ 3% high molecular

amide PP-MAA based

+ 1.5% TEGOMER®

AntiScratch Lwithout Additive

Q-Sun Xe-1-B

The PV 1306 test method of

VW/Germany is used to analyze

interior automotive parts based on

TPE compounds regarding their

tackiness and migration after UV

irradiation (5 x 96 h).

TEGOMER® AntiScratch L does not show any migration and tackiness in the PV 1306 test but remains in the bulk

phase of the plastic part providing a long lasting scratch resistance.


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Additives to Improve Haptics of TPEScreening by Evonik

▪ Subjective rating by manual

surface screening of injection

molded plaques.

▪ Best results can be achieved

by TEGOMER® M-Si 2650.

▪ Biggest differences can be

seen by modifying TPE-V,

lowest differences at PMMA.

▪ Female test persons are more

sensitive, especially at grained

surfaces.

-10

0

10

20

30

40

50

60

70

H-Si 6440P

M-Si 2650 PP-Si 401 TP 5885 DA 800 STO V

Male Female

TPE-V screening results

10% additive content

1. just 5% additive content, because 10% were not moldable 2. surface defects due to incompatibility → yellowness, flowlines 3. inhomogeneous additive distribution → some flowlines

PolymerWith-

out

TEGOMER®

H-Si 6441P

TEGOMER®

M-Si 2650

(PP-Si

401)

TEGOPREN®

5885

TEGOMER®

DA 800

TEGO®

STO V

TPE-V - + ++ + + - +

PMMA O + O+ O O

PP O + ++1 + -2 -3 +1


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SEBS the most used TPE-S

Styrene Ethylene Butylene Styrene CopolymerSome remarks on SEBS

▪ Moderate chemical and thermal resistance

▪ Good weathering resistance

▪ Only used in form of a blend with extender like PP and mineral

oils

▪ Excellent adhesion to

surfaces

▪ Widely used for in the

automotive industries for

direct molded sealing and

consumer goods with lower

mechanical demands

▪ Good cushioning properties

Soft sectionsHard sections


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0

0,5

1

1,5

2

2,5

3

3,5

4

NoAdditive

TAS L M-Si2650

DA 646 H-Si6441P

TP 6875

Influence of 2% TEGOMER®

Scratch 5N GMW 14689 [delta L Value] COF [cN/g]TEGOMER® M-Si 2650

Without Additive

TEGOMER® AntiScratch L

Formulation %bw

SEBS 46

OIL 50

TEGOMER® / TEGOPREN® 2

COLOUR MASTERBATCH 1.3

ANTIOXIDANTS 0.7

TEGOMER® in SEBSInfluence on Scratch Resistance and COF


12

0

20

40

60

80

100

120

140

NoAdditive

TAS L M-Si 2650 DA 646 H-Si6441P

TP 6875

Influence of 2% TEGOMER®

Hardness [Shore A] Abrasion Resistance [mm³]

TEGOMER® in SEBSInfluence on Abrasion Resistance vs. Hardness

Abrasion Tester, Gibrite


13

0

20

40

60

80

100

120

No Additive TAS L M-Si 2650 DA 646 H-Si 6441P TP 6875

MF

I g

/10 m

in

MFI at 200°C, 5 kg

0

200

400

600

800

1000

1200


E@

B [

%]

Elongation at Break ASTM D412

7,6

7,8

8

8,2

8,4

8,6

8,8

9

9,2


Tensile

Str

ength

[M

Pa]

Tensile Strength ASTM D412

TEGOMER® in SEBSInfluence on MFI, E@B and Tensile Strength

Property 1st Choice 2nd Choice 3rd Choice

Hardness and E@BNo significant

influence

MFITEGOPREN®

6875

TEGOMER®

M-Si 2650

TEGOMER®

H-Si 6441P

Tensile StrengthTEGOMER® DA

646

TEGOMER® M-Si

2650

Scratch ResistanceTEGOMER®

M-Si 2650

TEGOPREN®

6875

TEGOMER®

AntiScratch L

Abrasion

ResistanceTEGOMER®

AntiScratch L

TEGOMER®

M-Si 2650

TEGOPREN®

6875

COF TEGOMER® H-Si 6441P


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TPU a very special TPE Type

Multi phase block copolymer (polyester or polyether based) out of

▪ A polyol or long chain diol

▪ A chain extender

▪ A diisocyanate16

Special Properties of TPU‘s

▪ Highest strength among the TPE‘s

▪ High resistance against cut propagation

▪ High abrasion resistance and cushioning effect

▪ Good adhesion on solid surfaces

▪ Good UV stability


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Product PEO TPE-V TPU TPE-S TPOSoft

PVC

Improvement

of Melt Flow

TEGOMER® H-Si 6441P X X X X X X

TEGOMER® M-Si 2650 X X X

TEGO® Sorb PY 88 TQ X

Flame

Resistance

TEGOMER® V-Si 4042 X X X X X

TEGOMER® FR 100 X X X X

COF /

Abrasion

Reduction

TEGOMER® M-Si 2650 X X X


TEGOMER® H-Si 2315 X

Scratch

Resistance

TEGOMER® AntiScratch 100 X X X

TEGOMER® AntiScratch L X X X


TEGOMER® 6264 X

The Right TEGOMER® grades for Different Application


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TEGO® Sorb PY 88 T.Q.Giving the world a clean smelling back

TEGO® Sorb PY 88 T.Q. helps to meet critical organoleptic and olfactory demands.

Non reversible absorption of Sulphur and Nitrogen containing impurities creating malodor.

Suitable for preventing emission from recycled polymers, pigments, TPE’s, PA …

Dosage: 0.5-2.0%

One Example

▪ Recycled grade of PA6 containing Mercapto

Sulphur components which generate odor

▪ Addition of 1 % TEGO® Sorb PY 88 leads to

reduction of these smelling components by

25–to 50 %

▪ characterization of VOC by thermo-

desorption (GC-MS 90°C) VDA-Norm 278


Performance Additives for Thermoplastic Evonik …...2 TEGOMER® and TEGOPREN® Additives for...

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