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- material properties
- Fiber material properties
|
| Item | Test method | Unit | Fiber |
|---|---|---|---|
| Tensile strength | JIS C2315 | MPa | Vertical：80-140 Side：40-80 |
| Spreading rate (during breaking) | JIS C2111 | ％ | Vertical：5-20 Side：8-25 |
| Compression strength | JIS K6911 | MPa | 160-260 |
| Bending strength | JIS K6911 | MPa | Vertical：140-200 Side： 90-130 |
| Impact strength | JIS K6911 | J/m | Vertical：340-450 Side：240-300 |
| Modulus of elasticity | JIS K6911 | N/mm2 | 3,000-5,000 |
| Insulation resistance | JIS K6911 | MΩ | 3×103-1×104 |
| Dielectric breakdown strength | JIS K6911 | kV/mm | 6-20 |
| Specific volume resistance | JIS K6911 | MΩ･cm | 2×103-8×103 |
| Surface resistance | JIS K6911 | MΩ | 3×102-6×102 |
| Permittivity(1KHz) | JIS K6911 | - | 4-7 |
| Power factor(60Hz) | - | - | 0.03-0.08 |
| Density | JIS 2315 |  /cm3 |
1.0-1.5 |
| Specific heat | - | KJ(k･k) |
1.67 |
| Linear expansion coefficient | - | (×10-5)K-1 | 2.5-2.8 |
| Thermal conductivity | - | W/(m・K) | 0.24-0.30 |
| Thermal shrinkage Normal state (23℃･50％RH)→105℃, 5 hrs. |
JIS C2315 | ％ | Vertical：0.5-1.2 Side：1.3-2.5 Thickness：2.5-5.5 |
| Rapid increase rate in moisture absorption Normal state →40℃, 90% RH－72 hrs. |
- | ％ | Vertical：0.3-1.0 Side：1.5-3.5 Thickness：3.0-7.0 |
| Water absorption rate(In 23°C pure water) | ASTM D619 | ％ | 2h：15-70 24h：35-80 |
| Water content | JIS C2315 | ％ | 5-8 |
| Ash content | JIS C2315 | ％ | N＜1,R＜4 |
| Chlorine content | JIS C2315 | ％ | ＜0.02 |
| Sulfuric acid content | ASTM D619 | ％ | ＜0.02 |
| Silicon content | ASTM D619 | ％ | ＜0.2 |
| Heat resistance category | Electrical Appliances and Materials Safety Act | - | A type |
| Heat resistance(40,000 hrs.) | Electrical Appliances and Materials Safety Act | ℃ | 105 |
| Heat resistance(2Time) | JIS K6911 | ℃ | 190 |
| Flame retardance(≥0.8 mm) | UL94 | - | HB |