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DF3248 Benzoxazine Glass Cloth Laminate

Product features: DF3248 benzoxazine glass cloth laminate is made by impregnating alkali-free glass cloth treated with KH560 with benzoxazine resin and hot pressing. Excellent mechanical properties at high temperatures, a certain degree of flame retardancy, good electrical properties. Application areas: DF3248 benzoxazine glass cloth laminate is suitable for insulating structural parts in Class F motors and electrical equipment. 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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Physical, mechanical and electrical properties

Serial Number	Indicator Name		Unit	DF3248		Test Method
Serial Number	Indicator Name		Unit	Index value	Typical value	Test Method
1	Water absorption (T = 3mm)		mg	≤ 22	7.3	GB/T 1303.2-2009
2	Vertical layer bending strength (longitudinal)	Normal	MPa	≥ 340	580
2	Vertical layer bending strength (longitudinal)	150 ℃ ± 3 ℃	MPa	≥ 170	245
3	Parallel layer impact strength (simply supported beam, notch)		kJ/m2	≥ 33	98
4	Vertical Lamina Compressive Strength		MPa	≥ 350	570
5	Vertical layer direction electrical strength (90 ℃ ± 2 ℃ in transformer oil)(T = 1mm)		kV/mm	≥ 14.2	26
6	parallel layer directional breakdown voltage (90 ℃ ± 2 ℃ in transformer oil)		kV	≥ 35	＞70
7	Dielectric Loss Factor (1MHz)		-	≤ 0.04	0.02
8	Dielectric constant (1MHz)		-	≤ 5.5	4.7
9	Insulation resistance (after immersion for 24h)		Ω	≥ 5.0 × 1010	2.7 × 1012
10	Combustibility		Level	-	V-1