2. IntroductionIntroduction andand PurposePurpose
Information and practical tips about
Thermoplastic Elastomers and processing guide.
Smart processing and smart choice
of polimeric compounds is possible with ;
Understanding the raw material.
Good analysis of the process
Design of the final product
3. What is TPE?
Thermoplastic Elastomers(TPEs) are the products which contains plastic
and elastromeric properties. TPEs are fast and economic proccesible materials as
plastics, beside of their plastic behiavour advantages, TPEs contain also common-
known properties of rubber such as physical and performanse behaviours.
Elastomeric Phase,
Elasticity,
Soft touch
Flexibility,
Compression Set
Minimum processing temperature
Hard Phase
Recycle,
Hardness, Rigidity,
Processability
Elastromeric Phase
Hard Phase
19. NEDEN SBC TERMOPLASTIK ELASTOMER’DIR?
-Hard segment(Polystyrene Domain )
Strong and rigid
-Soft segment( Polybutadiene matrix)
C C x
Ethylene-ButylenePS(S) PS(S)
C C
m
C
C
C
C
n
C C
z
21. General Properties
TPE-S TPV
Hardness Range 10 shore A 60 shore D 25 shore A 60 shore D
Density Values 0.90 - 1.20 0.98
Maximum Working Temp. 120°C 135°C
Enviromental Resistance Excellent UV resistance Excellent UV resistance
Görünüş Shiny and transparent or mat
surface
Mat surface, Transparent or
shiny surface is not possible
22. General Properties
TPE-S TPV
Compression Set Good up to 100°C Good over 100°C
Compatibility Compatible with
Engineering Plastics.
Limited compatiblty with
Engineering Plastics.
Abrasion Resistance Good Good
Scent None Some
Fogging Good Good
Oil and Gasoline
Resistance
Limited Limited
23. General Properties
TPE-S TPV
Colorable Easy to color and shiny
surface
Easy to color
Paint Applicable Applicable
Pre-processing No need for drying Should be dried , 2 hours –
80C
Foaming Classic Extrusion Underwater Extrusion
Manufacturing Compounding process Vulcanization process
24. Compression Set
0
20
40
60
80
100
22 hrs at
23°C
22 hrs at
70°C
22 hrs at
100°C
70 hrs at
125°C
%
TPE-S 60 ShA TPV 60 ShA
Nota : TPE-S with improved compression set properties
26. PVCPVC ((softsoft)) SBS/SEBSSBS/SEBS
MainMain ComponentComponent Chloric hydrocarbon Hydrocarbon
PropertiesProperties Injection or Extrusion Injection or Extrusion
Not completely re-cyclable Completely Re-cycable
Over scent during processing No scent during processing
Hydrochloric acid ve dioxin gasses
released during burning
Water and Carbondioxide gasses
relaesed during burning
phathalates
ProcessingProcessing
TemperaturesTemperatures
-10 – 80 c -50- 120 c
DensityDensity 1.3 – 1.4 0.9 – 1.3
HardnessHardness 40A – 98A 10A – 60D
OtherOther Prohibited in European Market
CCompressionompression TPETPE withwith SoftSoft PVCPVC :
28. Criterias of material choice in TPE
• Application Area
–Automotive, Industrial, Consumer goods etc.
• Right Questions ;
–Processing Methods ;(Injection, Extrusion, Blow Moulding, 2K, etc.)
–Enviromental Effects (Çalışma Ortamı, Sıcaklık, Kimyasallar vb)
–Special Requirements ( RoHS, WEEE, FDA vb.)
• Special Formulation for each and every costumers.
- Costumer Needs
- Hardness
- Colour
-MFI
-Etc.
