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3240 phenolic epoxy glass cloth laminate

Product features: 3240 phenolic epoxy glass cloth laminate is made of alkali-free glass fiber cloth impregnated with phenolic epoxy resin as the substrate and hot-pressed. Good electrical properties, high mechanical strength, heat resistance grade B- F grade. Application areas: Suitable for motor, electrical equipment as insulation structure parts, can be used in humid environment and transformer oil. Thickness range: 0.2mm--100mm Main dimensions: 1500mm * 3000mm, 1220mm * 3000mm, 1020mm * 3000mm, 1020mm * 2440mm, 1220mm * 2440mm, 1500mm * 2440mm, 1000mm * 2000mm, 1200mm * 2000mm and other sizes based on the agreement between the supply and demand sides.

Classificationn:

Laminated sheet

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+8619181003973

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Physical, mechanical and electrical properties

Serial Number	Indicator Name	Unit	Index value	Typical value	Test Method
1	Density	g/cm3	1.7～2.0	1.94	GB/T 1303.2-2009
2	Water absorption (T = 3mm)	mg	≤ 22	9.4
3	Vertical layer bending strength (longitudinal)	MPa	≥ 340	578
4	Impact strength (simply supported beam, notched)	kJ/m2	≥30	70
5	Dielectric loss factor 50Hz	-	≤ 5.5	4.48
6	Dielectric constant 50Hz	-	≤ 0.04	0.02
7	Insulation resistance (24h in water)	Ω	≥ 5.0 × 108	4.9 × 109
8	Vertical layer direction electrical strength (90 ℃ ± 2 ℃ in transformer oil, T = 1mm)	KV/mm	≥ 14.2	17.8
9	parallel layer directional breakdown voltage (90 ℃ ± 2 ℃ in transformer oil)	kV	≥ 35	＞60