DELPET (Asahi Kasei)
Asahi Kasei acrylic resin（PMMA) DELPET™ has an exellent transparency , surface hardness and weatherability. Main applications of DELPET™ are outer/inner parts for automobile , optical goods , industrial and general parts/goods. We also have High-performance grade such as highly heat resistant PMMA grades and BIMODAL grades.
DELPET Grade Line up
| Grade | |
|---|---|
| Standard Grades | 720V, 70FR, 560F, 70NH, 60N, 80NH, 80N, 80NR, 80NR-S, 80HD, LP-1, 80NB |
| Bimodal Grades | 80NE, 80EB |
| Special Grades for Light Guiding Plates | 70FR, 70NH, 80NH |
| Heat-resistant Grades | 980N, 981J, 982J, PM120N, PM130N |
| High Impact Grades | SR6200, SR6350, SR6500, SR8200, SR8350, SR8500, SRB100, SRG095, SRG097, SRB215, SRB235, SRE255, SRJ259 |
| Filter Grades | FILA72, FILA82, FILB72, FILB82 |
| PB Series (Piano Black) | PB01, PB21, PB22 |
About Bimodal
ASAHI KASEI CHEMICALS have developed brand-new PMMA which surpassed conventional PMMA by original technology.
- DELPET 80NE has superior high flow ability in injection molding.
① The flow distance is about 20% longer than that of 80N.
(It is equal to that of conventional PMMA which MFR is about 4g/10min..)
② Molding cycle time is expected to shorten for large-sized or thick-walled parts.
③ This resin makes possible to mold more complicated shape or thin-walled parts in
comparison with conventional PMMA.
- DELPET 80NE has the same mechanical strength, heat resistance and solvent resistance as 80N.
- DELPET 80NE has higher swelling ratio than conventional PMMA, so improvement of the jetting problem is expected.
* Swelling ： Swelling of molten resin after the passage through a injection gate.
* Jetting ：Flow of molten resin in contact with a mold surface deficiently, after the passage through a injection gate.
A line-shaped mark occurs in the vicinity of a gate.
- DELPET 80NE has high transparency, high gloss surface and other typical properties as the
same as conventional PMMA.
DELPET General purpose
| Classification | Evaluation method | Unit | 560F | 60N | 80N | LP-1 |
|---|---|---|---|---|---|---|
| Melting index | ISO 1133 cond13 | g/10min | 13.0 | 8.0 | 2.0 | 1.1 |
| Modulus of elasticity | ISO 527-2/ 1A/1 | MPa | 3200 | 3200 | 3300 | 3300 |
| Tensile stress | ISO 527-2/ 1A/5 | MPa | 69 | 72 | 75 | 75 |
| Charpy Sample impact force | ISO 179/1eA | KJ/㎡ | 1.3 | 1.3 | 1.4 | 1.4 |
| Load deviation temperature |
ISO 75-1 ISO 75-2 | °C | 84 | 91 | 100 | 97 |
| Vicat Softening temperature |
ISO 306 B 50 | °C | 94 | 98 | 109 | 104 |
| density | ISO 1183 | g/㎤ | 1.19 | 1.19 | 1.19 | 1.19 |
| Index of refraction | ISO 489 | - | 1.49 | 1.49 | 1.49 | 1.49 |
| Visual transmittance | ISO 13468-1 | % | 92 | 92 | 92 | 92 |
| Bending modulus | ISO 178 | MPa | 3200 | 3300 | 3300 | 3300 |
| Bending stress | ISO 178 | MPa | 120 | 120 | 130 | 130 |
| Rockwell Lightness | ISO 2039-2 | (M-Scale) | 92 | 95 | 100 | 95 |
| Mold dimension shrinking |
Asahi Method | cm/cm | 0.002-0.006 | 0.002-0.006 | 0.002-0.006 | 0.002-0.006 |
| Characteristics | High mobility. | Fluidly,The most standard Grade. | High thermal resistance. |
High resistance to organic crack solvents. |
||
| Application case | General | General | Standard | Extrusion sheet | ||
| POPL | - | - | - | - | ||
| UL | 94HB | 94HB | 94HB | 94HB | ||
| FDA | Match | Match | Match | Match | ||
DELPET Light guide panel
| Property | Test Method | Unit | 80NH | 70NHX | 70FH |
|---|---|---|---|---|---|
| Specific gravity | ASTM D 792 | - | 1.19 | 1.19 | 1.19 |
| Shrinkage from mold dimensions |
Asahi Method | cm/cm | 0.002-0.006 | 0.002-0.006 | 0.002-0.006 |
| Melt Flow Rate | ASTM D 1238 (230°C.3.8kg, CONDITION-I) |
g/10min | 5.5 | 6.5 | 13.0 |
| Total luminous transmittance |
ASTM D 1003 | % | 93 | 93 | 93 |
| Index of refraction | ASTM D 542 | - | 1.49 | 1.49 | 1.49 |
| Tensile Yield Strength | ASTM D 638 | MPa | 73 | 73 | 70 |
| Flexural strength | ASTM D 790 | MPa | 118 | 118 | 118 |
| Flexural modulus | ASTM D 790 | MPa | 3300 | 3300 | 3300 |
| Izod impact strength of notched specimens | ASTM D 256 | KJ/㎡ | 1.6 | 1.6 | 1.6 |
| Coefficient of linear thermal expansion |
ASTM D 696 | 10-5.cm / cm.°C |
6 | 6 | 6 |
| Vicat softening temperature |
ASTM D 1525 | °C | 120 | 114 | 107 |
| Features | Heat resistance, good flow ability, mold release. |
Good flow ability | Excellent flow ability, mold release. |
||
| Application examples | Optical purpose. Light-conducting plates. |
Optical purpose. Light-conducting plates. |
Optical purpose. Light-conducting plates. |
||
| POPL | - | - | - | ||
| UL | 94HB | 94HB | 94HB | ||
| FDA | - | - | - | ||
DELPET ®FIL(filter)
GRADED charateristics
DELPET FIL has the function of the filter itself
- Aspherical LENS, FILTER can be freely designed.
- The beautiful appearance of acrylic resin can be saved.
- Integrated molding with peripheral part is also possible and the
process is simplified.
Property of ＦＩＬGrade
ＦＩＬ Ａis equivalent to６０Ｎ、ＦＩＬ Ｂis equivalent to８０Ｎ.
Delpet ®SR Shock resistance
application
- Telephone button
- automobile side visor
DELPET 80NR(For Lens)
| TEST Method(ISO) | Unit | 80N | 80NR | 80NH | |
|---|---|---|---|---|---|
| Melt flow rate(230℃, 37, 3N) | 1133 cond | g/min | 2.0 | 2.1 | 5.5 |
| Spiral flow length | ASAHI KASEI METHOD |
Cm | 27 | 27 | 34 |
| DTUL(℃) After annealing | 75-1 75-2 |
℃ | 100 | 100 | 100 |
| VST(℃) | 306 B 50 | ℃ | 109 | 108 | 109 |
| Tensile modulus | 527-2/1A/1 | Mpa | 3300 | 3300 | 3330 |
| Tensile strength at break | 527-2/1A/5 | Mpa | 77 | 77 | 75 |
| Tensile strain at break | 527-2/1A/5 | Mpa | 6 | 6 | 5 |
| Charpy impact strength(unnotched) | 179/1eU | KJ/㎡ | 22 | 22 | 20 |
| Charpy impact strength(notched) | ASTM D256 | KJ/㎡ | 1.4 | 1.4 | 1.3 |
| Flammability | UL94 | - | HB | HB | HB |
| Visible particles | ASAHI Method |
Value | <1 | <1 | <1 |
Molding Condition
| Delpet 80N | Delpet 80NR | Delpet 80NH | |
|---|---|---|---|
| Pre-drying | 90℃, 2~6hr | 90℃, 2~5hr | 90℃, 2~5hr |
| Cylinder temp-nozzle | 220~260℃ | 220~260℃ | 210~250℃ |
| Cylinder temp-hopper | 220~240℃ | 20~240℃ | 210~230℃ |
| Injection pressure | 50~150MPa | ||
| Mold temperature | 50~90℃ | ||
| Annealing Temp | |||