anti-scratch additives for automotive...
TRANSCRIPT
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Anti-scratch additives for Automotive Applications
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Introduction
This presentation outlines some of the results observed using
Croda’s range of anti-scratch additives.
To receive the full presentation containing methodology,
recommended addition levels and quantified results, please contact
us at:
www.crodapolymeradditives.com
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Current anti-scratch products
Product Family Key strength Potential weakness
Traditional amides Low dose rate
Cost effective
Visible bloom
Surface stickiness
Silicones Long lasting High dose rates
Expensive
PE waxes Smoothness
Gloss
Greasy at the surface
Functionalised
polymers
Lowered surface roughness
Change mechanical
properties
Expensive
Difficult to dose
Change mechanical
properties
There are currently a number of anti-scratch additives available on the
market.
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Additives for anti-scratch improvement
Our recommended additives are:
The level of scratch resistance given can be dependant on polymer,
formulation and application
Incroslip SL
Excellent anti-scratch,
long-term stability, low
visible bloom, good
organoleptics
Incroslip G
Excellent anti-scratch in
hPP, good mold release
IncroMold K
Excellent anti-scratch in
cPP, reduced scratch
whiteness
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Incroslip SL
Incroslip SL shows an improvement in scratch
resistance properties along with:
• Excellent oxidative stability
• Low visible bloom
• Long-term slip performance
• Maintains gloss
• Excellent Organoleptic properties
This product is recommended for applications where high stability and
long-term performance is required such as parts which have long-term
exposure to UV light.
e.g. car interiors, dashboards, etc.
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Incroslip SL – Scratch width in cPP
Blank PP – 5 N Incroslip SL – 5 N
Blank PP – 10 N Incroslip SL – 10 N
Incroslip SL reduces scratch width in PP impact copolymer.
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Incroslip SL – Reduced visible bloom
Incroslip SL reduces visible bloom in PP impact copolymer after exposure to UV
light.
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Incroslip G
• Incroslip G demonstrates excellent scratch
resistant properties in hPP
• Excellent mold release
• Recommended in applications where scratch
resistance and mold release are required –
particular in hPP parts
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Incroslip G – Scratch width in cPP
Incroslip G – 5 N
Incroslip G – 10 N
Blank PP – 5 N
Blank PP – 10 N
Incroslip G reduces scratch width in PP impact copolymer
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Incroslip G – Scratch whiteness in hPP
PP homopolymer PDMS Silicone Incroslip G
Incroslip G reduces scratch whiteness in PP homopolymer compared to PDMS
silicone
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Incroslip G - Mold release
100
82 77
0
10
20
30
40
50
60
70
80
90
100
Control PPh 0.25 % Incroslip G 0.50 % Incroslip G
% R
ele
ase F
orc
e
Control PPh 0.25 % Incroslip G 0.50 % Incroslip G
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IncroMold K
• IncroMold K is a new addition to the IncroMold
range
• Excellent anti-scratch properties, especially in
cPP
• Reduced scratch width and scratch whitening
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IncroMold K – Scratch width in cPP
IncroMold K – 5 N
IncroMold K – 10 N
Blank PP – 5 N
Blank PP – 10 N
IncroMold K reduces scratch width in PP impact copolymer
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IncroMold K – Scratch whiteness
Blank PP
IncroMold K
IncroMold K reduces scratch whiteness in PP impact copolymer
Increasing load
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Anti-scratch in PMMA
Blank PMMA
IncroMax PS
In PMMA
IncroMax PS demonstrates excellent anti-scratch performance in PMMA
and has no negative affect on colour or clarity of the polymer.
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Summary
Product Polymer
Incroslip SL Excellent anti-scratch, long-term stability, low visible bloom
Incroslip G Excellent anti-scratch and mold release in hPP
IncroMold K Excellent anti-scratch and reduced scratch whiteness in cPP
Atmer 7650 Excellent anti-scratch and mold release in PC
IncroMax PS Excellent anti-scratch in PMMA and styrenics
However…
• Differences in formulations and overall requirements from the additive
may mean other additives are more suitable
• Croda can help improve processing and appearance of plastics used in
automotive applications
• We are happy to work on customer projects to find the best additive for
you
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For more information on this range of additives or for anti-scratch solutions
in other polymers, please contact us at:
www.crodapolymeradditives.com