High mechanical performance, oil resistance and poor dielectric property with thermal grade E glass.
Thickness: 0.5,0.8, 1
Phenolic cloth laminated sheet
Type: 3025, 3026 series
High mechanical performance, oil resistance and poor dielectric property with thermal grade E glass.
Thickness: 0.5,0.8, 1, 1.5, 2, 3,4,..., mm.
Specification: 1020*2020mm, 1220*2470mm
Phenolic Cotton Cloth Laminated Sheet
1 .Definition and purpose
This product is formed into laminated board through drying and heat pressing after cotton cloth dips into PF resins. It is suitable as the structural components with a certain mechanical performance and electric performance for machinery, electric engine and electric equipment.
2 .Technical requirement
2.1 Outside appearance:The surface of laminated board should be flat and smooth, no bubble, no wrinkle or crackle, and properly free from other defects such as scrape, impress, dirt spot and uneven color, but a little color sports is allowed.2.2 Main performance index
Table 1 : Performance index
Sr. | Performance | Unit | Test method | Index value | 1 | Vertical layer direction bending strength | MPa | GB/T5130 section 5.1 | ≥ 50 | 2 | Parallel layer direction compact strength(Simple strut-beam,notch specimen) | KJ/m2 | GB/T5130 section 5.5 | ≥ 8 | 3 | Parallel layer direction compact strength(Suspended arm beam,notch specimen) | KJ/m2 | GB/T5130 section 5.5 | ≥ 4 | 4 | Parallel layer shearing strength | MPa | GB/T5130 section 5.6 | ≥ 25 | 5 | Vertical layer direction electric strength at (90±2)°c oil. | MV/m | GB/T5130 section 6.1 | Refer to table 2 | 6 | Parallel layer direction breakdown voltage at (90±2)°c oil. | kV | GB/T5130 section 6.1 | ≥ 2 | 7 | Insulation resistance after water dipping | Ω | GB/T5130 section 6.3 | ≥ 1 × 107 | 8 | Density | g/cm3 | GB/T5130 section 8.1 | 1.3-1.6 | 9 | water absorption | mg | GB/T5130 section 8.2 | Refer to table 3 |
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Table 2 : Vertical layer direction electric strength | |
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Average thickness mm | Electric strength MV/m | Average thickness mm | Electric strength MV/m | 0.8 | ≥ 0.89 | 2.0 | ≥ 0.65 | 0.9 | ≥ 0.84 | 2.2 | ≥ 0.61 | 1.0 | ≥ 0.82 | 2.4 | ≥ 0.58 | 1.2 | ≥ 0.80 | 2.6 | ≥ 0.56 | 1.4 | ≥ 0.76 | 2.8 | ≥ 0.53 | 1.6 | ≥ 0.7 | 3.0 | ≥ 0.50 | 1.8 | ≥ 0.69 | | |
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Phenolic Cloth Laminated Sheet
