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3021 Phenolic PaperLaminated Sheet
Name: 3021 Phenolic PaperLaminated Sheet
Colors Include:-DarkBrown
Type:-Sheet
1.Description
3021 is a laminated paper board formed through drying and heat pressing after the insulation dipping paper dips into the PF resins. This product is used as insulation structure component for electric engine and electric equipment of higher mechanical performance, as well as used in transformer.
2.Technical requirement for surface
The surface shall be tidy and smooth, bubble,impurity are not allowed. But slight scratch and color punctum are allowed.Edge is to be cut straight. The delamination and crackle on the end surface arenot allowed.
3.Technical Data Sheet
A. Performanceindex
| Sr. | Item name | Unit | Test method | Index |
| 1 | Density | g/cm3 | GB/T5130 section 8.1 | (1.30-1.40) |
| 2 | Water absorption | mg | GB/T5130 section 8.2 | Refer to table 2 |
| 3 | Vertical layer direction bending strength | MPa | GB/T5130 section 5.1 | ≧ 120 |
| 4 | Vertical layer compress strength | MPa | GB/T5130 section 5.3 | ≧ (250) |
| 5 | Tensile strength | MPa | GB/T5130 section 5.7 | ≧ (100) |
| 6 | Adhesive strength | N | JB/T8149.1 section 5.9 | ≧ 3200 |
| 7 | Dielectric constant, 1MHz | ____ | GB/T5130 section 6.2 | <= 5.5 |
| 8 | Dielectric loss factor, 1MHz | ____ | GB/T5130 section 6.2 | <= 0.05 |
| 9 | Parallel layer direction insulation resistance, after water dipping | Ω | GB/T5130 section 6.3 | ≧ 1.0 × 107 |
| 10 | Parallel layer direction breakdown voltage at （90±2）℃ transformer oil | kV | GB/T5130 section 6.1 | ≧ 20 |
| 11 | Vertical layer direction breakdown voltage at （90±2）℃ transformer oil | KV/mm | GB/T5130 section 6.1 | Refer to table 3 |
Note:The conversion of withstand voltage value of vertical layer in table is carriedout according to actual thickness and index. Additional technical requirementscan be negotiated by the supplier and the purchaser.
Table2 : Water absorption
| Average thickness mm | Water absorption mg | Average thickness mm | Water absorption mg | Average thickness mm | Water absorption mg |
| 0.4 | <= 160 | 2.0 | <= 190 | 10.0 | <= 320 |
| 0.5 | <= 162 | 2.5 | <= 195 | 12.0 | <= 350 |
| 0.6 | <= 163 | 3.0 | <= 200 | 14.0 | <= 390 |
| 0.8 | <= 167 | 4.0 | <= 220 | 16.0 | <= 420 |
| 1.0 | <= 170 | 5.0 | <= 235 | 20.0 | <= 490 |
| 1.2 | <= 174 | 6.0 | <= 250 | 25.0 | <= 570 |
| 1.6 | <= 182 | 8.0 | <= 285 | Single size processing to 22.5 | <= 684 |
Table3 : Electric strength
| Average thickness mm | Electric strength kV/mm | Average thickness mm | Electric strength kV/mm | Average thickness mm | Electric strengthkV/mm |
| 0.4 | >= 15.7 | 1.0 | >= 12.1 | 2.2 | >= 9.0 |
| 0.5 | >= 14.7 | 1.2 | >= 11.4 | 2.4 | >= 8.8 |
| 0.6 | >= 14.0 | 1.4 | >= 10.7 | 2.6 | >= 8.6 |
| 0.7 | >= 13.4 | 1.6 | >= 10.1 | 2.8 | >= 8.5 |
| 0.8 | >= 12.9 | 1.8 | >= 9.6 | 3.0 | >= 8.4 |
| 0.9 | >= 12.5 | 2.0 | >= 9.3 |
4.Application
Electronicmechanical parts, switches
All kinds of carbon film potentiometer
testingfixtures, etc..
5. Size:
| Phenolic paper laminated sheet | |
| Thickness (mm) | Width/Length (mm) |
| 0.5mm-50mm | 1020mmx2020mm |
| 0.5mm-50mm | 980mmx1980mm |