A flexible and transparent compound may be obtained by combining a hydrogenated HYBRAR™ with polypropylene. A homopolymer or random copolymer polypropylene is more suitable for this application.
These compounds have high tensile strength and excellent impact strength. They may be used for film and sheet applications and make an excellent alternative to flexible PVC. |
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(1)Comparison Data between PP/7125 and Flexible PVC
(2)Polypropylene/Hydrogenated HYBRAR™ Blend
(3)Three Layer (Blown Film)
(4)Mono Layer (Cast Film) |
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(Tested by KURARAY CO., LTD.)
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PP/7125 Blend |
PVC |
Transparency
Weather Resistance
Heat Resistance
Low Temperature Properties
Flexibility
Density
Recyclability
Halogen Free
Plasticizer Free |
Good
Good
Good
Good
Good
Low
Excellent
Yes
Yes |
Good
Good
Good
Poor
Good
High
Poor
No
No |
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| Up to Top |
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(Tested by KURARAY CO., LTD.)
| | 1 | 2 | 3 | 4 |
| Formulation | (Parts by weight) |
| Polypropylene (Homopolymer) |
|
| HYBRAR™ 7125 | |
|
100
0 |
90
10 |
70
30 |
60
40 |
| Optical Properties | (1mm thick film) |
| Haze | % |
| Transmittance | % |
|
60
79 |
50
80 |
30
87 |
23
90 |
| Mechanical Properties | |
| Young's Modulus | MPa |
| Elongation | % |
| Tensile Strength | MPa |
| Hardness | Shore D |
| Impact Strength | |
| Notched Izod
@ -20˚C |
J/m |
|
800
1400
39
69
16 |
680
1430
39
64
16 |
220
1450
29
57
16 |
220
1480
30
50
25 |
|
|
(Tested by KURARAY CO., LTD.)
| | 5 | 6 | 7 | 8 |
| Formulation | (Parts by weight) |
| Polypropylene (Homopolymer) |
|
| HYBRAR™ 7311 | |
|
100
0 |
90
10 |
70
30 |
60
40 |
| Optical Properties | (1mm thick film) |
| Haze | % |
| Transmittance | % |
|
60
79 |
60
81 |
56
81 |
43
84 |
| Mechanical Properties | |
| Young's Modulus | MPa |
| Elongation | % |
| Tensile Strength | MPa |
| Hardness | Shore D |
| Impact Strength | |
| Notched Izod
@ -20˚C |
J/m |
|
800
1400
39
69
16 |
540
1550
39
66
16 |
210
1570
30
56
27 |
130
1520
26
47
31 |
|
| (1MPa=10.20 kgf/cm2)(1J/m=0.102kgf ·cm/cm) |
|
Polypropylene (Homopolymer) (MI=4.0g/10min @ 230˚C, 2.16kg)
Mixing Condition:Twin Screw Extruder@230˚C
Molding Condition:Press Molding@210˚C |
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| Up to Top |
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(Tested by KURARAY CO., LTD.)
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1 |
2 |
3 |
Composition
First Layer
Second Layer
Third Layer |
PP(10μ)
PP/7125=95/5(30μ)
PP(10μ) |
PP(10μ)
PP/7125=90/10(30μ)
PP(10μ) |
PP(15μ)
PP/7125=80/20(20μ)
PP(15μ) |
| Mechanical Properties |
| Tensile Strength | MPa |
| Tensile Modulus | MPa |
| Elongation | % |
|
MD
37.3
260
1120 |
TD
24.5
279
820 |
MD
36.3
205
1020 |
TD
25.5
285
1140 |
MD
23.5
226
740 |
TD
26.5
274
970 |
|
|
1.8 |
1.2 |
1.6 |
|
| Thickness =50 μ |
|
|
| Up to Top |
|
|
|
(Tested by KURARAY CO., LTD.)
| |
1 |
2 |
3 |
4 |
| Formulation |
(Parts by weight) |
| Polypropylene | |
| HYBRAR™ 7125 | |
|
90
10 |
85
15 |
80
20 |
70
30 |
| Mechanical Properties | |
| Tensile Strength | MPa |
| Tensile Modulus | MPa |
| Elongation | % |
|
MD
38.2
235
1090 |
TD
25.3
233
1130 |
MD
35.3
202
1000 |
TD
38.2
220
1195 |
MD
37.3
135
1270 |
TD
36.3
147
1170 |
MD
38.2
114
1150 |
TD
30.4
104
1090 |
| Optical Properties | |
| Haze | % |
|
3.9 |
2.8 |
0.9 |
0.4 |
|
| Thickness =50 μ |
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