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> Table of Tuftec™ Grades and
Properties >Tuftec™H1221 |
May
26, 2010 |
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Tuftec™
H1221
SEBS: Hydrogenated styrenic thermoplastic elastomer |
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| Essentials |
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Specially designed as a modifier and
compatibilizer for polypropylene (PP). Ultrafine dispersion
in PP, due to outstanding compatibility, enabling production
of transparent sheets and films with excellent flexibility
and resistance to hazing or whitening under bending
or folding. It is supplied in pellet form.
Contact
us for information on handling and use. |
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| Applications |
Excellent substitute
for PVC, due to unique combination of transparency and
flexibility of PP/H1221 blends. Transparent apparel packaging
and carrying cases. Folders and toys, enabled by flexibility
and absence of hazing and whitening at folds and bends.
Soft, comfortable surface feel, enabling excellent elastic
films for bag liners, tarpaulins, signboards, other products.
Compatibilizer. Base polymer for SEBS molding compounds.
Adhesives and sealants component.
Substrates of
fastening tapes for protective sheets, Logos, lines on
sportswear, sports shoes, Transparent tote bags, Waterproof
bag linings, Tarpaulins, Work aprons, Diaper backing sheets |
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The flexibility of polypropylene is improved substantially by adding Tuftec™ H1221. The transparency and flexibility can be obtained by selecting appropriate polypropylene. |
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Tuftec™ H1221 shows nanometer-order
dispersion in PP, imparting excellent flexibility to the production of polypropylene moldings. |
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PP/H1221 (80/20), Young’s mod.: 340MPa |
PP/H1052 (80/20), Young’s mod.: 700MPa |
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Typical characteristics of PP/H1221,
in comparison with PP/H1052*
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Property |
Test
method |
H1221 |
H1052 |
| Extruded
sheet |
Young’s
modulus (MPa)
MD/TD |
ISO 527-3 |
340/380 |
700/550 |
Tensile
yield strength (MPa)
MD/TD |
5/5 |
7/6 |
Tensile
strength (MPa)
MD/TD |
13/13 |
18/18 |
Elongation
(%)
MD/TD |
70/71 |
72/66 |
Total
light transmission (%)
70 µm thick |
JIS K 7105 |
92.4 |
91.5 |
Haze
(%)
70 µm thick |
4.2 |
17.8 |
Whitening
(%)
 T
|
Asahi
Kasei
Method |
3.2 |
33.3 |
| Injection
sheet |
Flexural
modulus(MPa)
2 mm/min flexure |
ISO
527-1
ISO 527-2 |
710 |
1,100 |
Tensile
yield strength (MPa)
50 mm/min tension |
23 |
29 |
Tensile
strength (MPa)
50 mm/min tension |
28 |
21 |
Elongation
(%)
50 mm/min tension |
530 |
730 |
| Brittle
temp. (°C) |
ASTM
D 746 |
-21.4 |
<-30 |
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* Formulations: h-PP/Tuftec™,
80/20.
Elastomers: Tuftec™ H1221, Tuftec™ H1052.
Test conditions
Young’s modulus: Test piece 20 mm 
100 mm
70 µm, rate of tension 2 mm/min.
| Whitening: |
Difference of total light
transmission before and after DuPont impact test;
test piece 0.4 mm sheet; missile 1/2 in., 1 kg, 50 cm
drop height. |
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| Please note that
all data and values are given as typical results obtained
with the indicated test methods for purposes of basic reference
in grade selection only, and not as any product specification
or warranty of any nature, and are subject to change without
notice. |
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By blending Tuftec™ H1221 and H1062, transparent PP compound with excellent low-temperature brittleness resistance can be obtained. |
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Tuftec™ H1221 shows strong adhesion property to PMMA plate, and can be co-extruded with PP. |
Adhesion property of Tuftec™ H1221
Evaluation process; |
Adherend: PET film with 50μm thickness |
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Adhesive layer: Approx. 10μm thickness
( Dried after solution coating. ) |
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Adhesion temp.:180 deg. C, Peeling temp.: 23 deg. C |
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Sample: 20mm width, Peeling speed: 300mm/min |
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The viscosity change of PP can be moderated by adding Tuftec™ H1221. |
Viscoelasticity of PP/Tuftec™ H1221
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