Description
- TRIPET is the registered trademark of polyethylene terephthalate resin manufactured by Samyang Corporation. Polyethylene terephthalate resins contain uniformly dispersed glass fibers or mineral/glass fiber combinations in polyethylene terephthalate (PET) resin that has been specially formulated for rapid crystallization during injection molding process.
- TRIPET NP2559GN30 BK is a halogen and antimony free flame retarded, glass reinforced grade, which offers a unique combination of properties high strength, modulus, heat resistance and excellent dimensional stability. TRIPET NP2559GN30 BK shows good processability with no corrosive emission during processing and superior flame retardancy at 1/32 inch in the UL94 test.
Characteristics
- Flame retardancy
- Halogen & Antimony free
- Excellent heat resistance
- Minimal moisture absorption
- Exceptional dimensional stability
- Resistance to a wide range of chemicals, oils, grease and solvents
- Excellent electrical properties
- Fast injection-molding cycles
Applications
- TRIPET NP2559GN30 BK resin is used in a wide range of various automotive, electrical and electronic applications.
TYPICAL DATA OF TRIPET® NP2559GN30 GRADE
| PROPERTY | UNIT | ASTM METHOD | TYPICAL DATA |
|---|---|---|---|
| Physical | |||
| Specific Gravity | - | D792 | 1.58 |
| Water Absorption (24 hours at 23℃) | % | D570 | 0.1 |
| Melt Flow Rate (265℃, 5kg) | g/10min | D1238 | > 40 |
| MECHANICAL | |||
| Tensile Elongation at break | % | D638 | 1,200 |
| Flexural Strength at yield | kgf/㎠ | D790 | 1,700 |
| Flexural Modulus | kgf/㎠ | D790 | 120,000 |
| Izod Impact Strength, notched, 23℃ (1/8”) | kgf∙㎝/㎝ | D256 | 5.6 |
| Rockwell Hardness | R scale | D785 | 118 |
| THERMAL | |||
| HDT, 18.6 ㎏f/㎠ | ℃ | D648 | 230 |
| ELECTRICAL | |||
| Volume Resistivity | Ω∙㎝ | D257 | 10¹⁴ |
| Dielectric Strength | kV/㎜ | D149 | 20 |
| Dielectric Constant | - | D150 | 3.8 |
| OTHERS | |||
| UL-94 Flammability (1/8”, 1/16”,, 1/32” thickness) | - | (UL 94) | V-0 |
| Mold Shrinkage (3mm thickness) | % | D955 | 0.1 ~ 0.3 |
※The figures listed in this table are typical values obtained under the standard test methods and may not be applicable for products that are under different application condition.
PROCESSING GUIDE FOR TRIPET® NP2559GN30 GRADE
General processing conditions for TRIPET® NP2559GN30 are shown below.
Drying prior to processing is essential to ensure desired appearance and property performance.
| SPECIFICATION | UNIT | CONDITIONS |
|---|---|---|
| Drying Temperature | ℃ | 120 |
| Drying Time | hr | 3 ~ 5 |
| Moisture Content, Max | % | 0.02 |
| Melt Temperature | ℃ | 255 ~ 265 |
| Nozzle Temperature | ℃ | 265 ~ 270 |
| Front Temperature | ℃ | 255 ~ 265 |
| Middle Temperature | ℃ | 255 ~ 265 |
| Rear Temperature | ℃ | 250 ~ 260 |
| Mold Temperature | ℃ | > 120 |
| Back Pressure | MPa | < 70 |
| Screw Speed | rpm | < 60 |
| Injection Pressure | MPa | < 70 |
| Injection Speed | % | < 60 |
| Hold Pressure | MPa | < 50 |
| Injection Cushion | mm | 3 ~ 6 |