https://www.avient.com/sites/default/files/resources/Novel_Thermoplastic_elastomers_for_overmolding_applications.pdf
These include semi
crystalline and amorphous polymers such as polypropylene, high impact polystyrene (HIPS), polycarbonate
(PC), polystyrene (PS), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), polybutylene
terephthalate (PBT), polymethyl methacrylate (PMMA), styrene acrylonitrile (SAN), polyphylene oxide (PPO),
polyoxymethylene (POM) and polyamide (PA).
Surface energy match of various thermoplastic elastomers with rigid thermoplastics
Engineering
Plastics
Polyamide 6,6
ABS
Polycarbonate
Acrylic
Polystyrene
Polypropylene
Polyethylene
Elastomer
COPA
TPU
COPE
S-TPE
TPV
mPE
Surface
Energy (mN/m)
46
43
40
37
34
31
28
Engineering
Plastics
Polyamide 6,6
ABS
Polycarbonate
Acrylic
Polystyrene
Polypropylene
Polyethylene
Elastomer
COPA
TPU
COPE
S-TPE
TPV
mPE
Surface
Energy (mN/m)
46
43
40
37
34
31
28
Figure 2.
F
O m
C
O *C
n
C*
O *m
*z
C C
C N
HH
* x
y
C H 3 O
C H 3
O* O C *n
285-056 Peel adhesion
3.23
3.06 3.063.063.062.89
2.89 2.89
2.72 2.72
3.06
2.38
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
Lexan 141 Cycolac MG38 Cycoloy C2950 Xenoy 5220 Xenoy 1339
Injection speed: 25 mm/sec
l,
Melt temp: 190°C Melt temp: 200°C Melt temp: 220°C
Figure 5: GLS 285-056 adhesion values overmolded onto PC, ABS, PC/ABS and PC/PBT over a wide range of melt
emperatures of the TPE. t
285-056 peel adhesion
2.893.06
2.38
2.55 2.55
3.063.06
25 50 75
Injection velocity, mm/sec
l,
Lexan 141 Cycolac MG38 Cycoloy C2950 Xenoy 5220
Figure 6: GLS 285-056 adhesion values overmolded onto PC, ABS, PC/ABS and PC/PBT over a wide range of injection
peeds. s
285-056 tensile properties: initial & aged after 1 week at 70°C.
2.35
1.60
2.77
2.30
1.66
2.77
Figure 7: Physical property retention of GLS 285-056 after 1week at 70°C.