Polycarbonate Resin Panlite® Sheet & Film
Introduction and Features
Polycarbonate resin "Panlite®" sheets and films, which have excellent characteristics such as heat resistance, impact resistance, and high transmittance, are used for automobile parts, electrical and electronic parts, printing nameplates, etc.
Features
Abounding in Line up
Panlite® sheet/film have various lineups from thin films to thick sheets, including improved pencil hardness and hard coating.
Main grades
| PC-1151 PC-2151 *1 |
PC-710A PC-813A *2 |
PC-D101 | PC-HA51 | PC-JA53 | |
|---|---|---|---|---|---|
| Composition |
|
|
|
|
|
| Pencil hardness （load 750g） |
2B | HB/2B | 2H/2B | 4H/HB | 2H/HB |
| Characteristic | General grade Good workability
|
Coating on both side Scratch resistance
|
High hardness Good workability |
Coating on both sides Pencil hardness |
Coating on PC side Scratch resistance |
Grade Lists
Standard grades
| Grade | Form | Thickness (mm) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.125 | 0.18 | 0.2 | 0.25 | 0.3 | 0.4 | 0.5 | 0.7 | 0.8 | 1 | 1.2 | 1.5 | 2 | |||
| PC-2151 | Clear | Roll | ○ | ○ | ○ | ○ | ○ | ||||||||
| Sheet | ○ | ○ | |||||||||||||
| PC-1151 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||
- *Contact us for thickness more than 2.0mm.
Propeties of standard grades
| Property | Unit | Measurement method | Measurement condition | typical value |
|---|---|---|---|---|
| Total light transmittance | % | ISO 13468-1 | 0.3mm (thickness) |
90 |
| Refractive index | - | ASTM D542 | - | 1.585 |
| Density | kg/m3 | ISO 1183 | - | 1,200 |
| Load deflection temperature | ℃ | ISO 75-1 and ISO 75-2 |
1.80MPa | 129 |
| 0.45MPa | 142 | |||
| Continuous heat resistance temperature | ℃ | - | - | 120 |
| Thermal conductivity | w/mK | laser flash method | - | 0.2 |
| Specific heat | cal/℃・g（RT） | - | - | 0.3 |
| Tensile modulus | MPa | ISO 527-1 and ISO 527-2 |
1mm/min | 2,400 |
| Tensile yield stress | MPa | 50mm/min | 61 | |
| Tensile yield distortion | % | 50mm/min | 6 | |
| Tensile fracture designatlon distortion | % | 50mm/min | >50 | |
| Water absorption rate | % | ISO 62 | after immersion in water at 23℃ for 24 hours | 0.2 |
| Flexural modulus | MPa | ISO 178 | 2mm/min | 2300 |
| Flexural strength | MPa | 2mm/min | 91 | |
| Charpy impact strength | kJ/m2 | ISO 179 | Notched | 76 |
| Vlcat softening temperature | ℃ | ISO 306 | 50℃/h 50N | 149 |
| Coefficient of linear expansion | ×10-4/℃ | ISO 11359-2 | - | 0.7 |
| Specific Inductive capacity | - | IEC 60250 | 100Hz | 3.1 |
| 1MHz | 3 | |||
| Dielectric loss tangent | 100Hz | 10 | ||
| 1MHz | 90 | |||
| Volume resistivity | Ω･m | IEC 60093 | - | >1×1013 |
| Surface resistivity | Ω | - | >1×1015 | |
| Withstand voltage | MV/m | IEC 60243-1 | Short time test | 30 |
| Tracking resistance | - | IEC 60112 | - | 250 |
Sunshine weathering test total light transmittance of PC-1151 1.0mm
Engineering Service
Secondary Processing
Machining
- Cutting
Electric circular power saws can be used, however, air bubbles may arise on the cut surface due to frictional heat when the sheet is thick. To avoid air bubbles, slower cutting speed or cooling process are required. Thinner sheets at 3 mm or less can be cut by shearings, and extremely thin sheets at 1 mm or less can be cut with scribers or scissors. See the following table for the compatibilities between cutting tools and sheet thicknesses.
| Tool | Scissors | Hand cutting | Shearing | Jigsaw | Scriber | |
|---|---|---|---|---|---|---|
| Thickness (mm) |
1 or less | ○ | ○ | ○ | △ | ○ |
| 2 | × | △ | ○ | ○ | ○ | |
| 3 | × | × | △ | ○ | △ | |
| 4 or over | ○ | ○ | ○ | △ | ○ | |
○= Suitable △= Allowable but the surface would be tough ×= Unsuitable
- Lathing
Standard tools for steel cutting can be used. Adjust revolution rates depending on required surface conditions and heaing states.
- NotePut on protectors since fragments might fly during processing.
Forming
- Forming method
Panlite® sheet can be used vacuum molding, high pressure molding and press molding.
Optimum temperatures are between 180 and 190℃, however, air bubbles might be generated when sheets are moistened. In such a case, predrying is required.
Predrying must be carried out at a temperature between 120 and 125℃ and the time ranges for predrying are shown in the following table.
| Sheet thickness | Time |
|---|---|
| 1mm | 2 hrs or longer |
| 2mm | 4 hrs or longer |
| 3mm | 7 hrs or longer |
| 4mm | 10 hrs or longer |
| 5mm | 13 hrs or longer |
| 6mm | 15 hrs or longer |
Form the sheets as soon as you put them out from the dryer. When Panlite® sheet is left in the air after drying, they will absorb moisture again in about an hour, which may cause air bubbles during forming. Optimum temperatures for forming are between 90 to 110 ℃. Draft angle must be 3% or more.
Painting and printing
Acrylic, vinyl chloride-vinyl acetate copolymer-type, phenolic, and chlorinated rubber-type inks are generally applicable to both painting and printing.
Bonding Panlite® sheet / Adhesive agents
suitable for Panlite®
Use inks or solvents specified by their
manufacturers for polycarbonate. Also, conduct preliminary tests before use.
Bonding
Panlite® sheet can be bonded by adhesive agents, solvents, supersonic waves, etc.
- Bonding by adhesive agents or solvents
As pretreatment, clean the bonding surface by neutral detergents or alcohol then roughen the surface by surface-roughing materials such as sandpapers. The table below shows bonding examples with commonly used adhesive agents and solvents. Most adhesive agents have low critical stress levels; When much strain remains, anneal the sheets before bonding.
| Type | Adhesive agent | Manufactuer | Tensile shear strength (MPa) |
Critical stress 23℃×24h (MPa) |
Remarks |
|---|---|---|---|---|---|
| Epoxy-type | Cemedine 1500 | Cemedine | 4.4 | 61.8 over | Cure agent : Polyamid Pot life : 60min(20℃) |
| Bond E Set M | Konishi | 3.4 | 61.8 over | Cure agent : Modified Polyamid Pot life : 60min(20℃) |
|
| Bond Quick Set | Konishi | 2.0 | 61.8 over | Cure agent : Modified Polyamid Pot life : 4min(20℃) |
|
| Urethane-type | Bond KU-661/KU-662 | Konishi | 3.9 | 21.6 | KU-661 : Polyester polyol KU-662 : polyisocyanate |
| α-cyanoacrylate-type (Instant adhesive) |
Aron alpha #201 | Toagosei | 10.8 | 6.9 | Viscosity : 2~6 (CPS) |
| Three Bond 1770 | Threebond | 9.8 | 6.9 | Viscosity : 2~5 (CPS) | |
| Cemedine 3000 | Cemedine | 8.3 | 6.9 | Viscosity : 2~5 (CPS) | |
| Loctite 495 | Japan Loctite | 10.8 | 6.9 | Viscosity : 40 (CPS) | |
| Solvent-type | Bond VP-2000 | konishi | 10.3 | 7.8 | Main component : Acrylics, Solvent : MEK |
| Solvent | Methylene chloride | - | 10.8 | - |