phenolic cotton laminate sheet from China manufacturer

Product Detail

Model No.: 3025

Production Capacity: 20000kgs each month

Delivery Date: 20 days

Means of Transport: Ocean

Packing: case and pallet

Dielectric strength min 4MV/m: Impact strength min25 KJ/m2

3025 phenolic cotton cloth laminate sheet is made of good cotton cloth and phenolic resin.

1,Dielectric strength perpendicular to laminations(in 90±5℃ transformer oil, 1 mm in thickness) min 4MV/m

2,Impact strength parallel to laminations (Charpy) min25 KJ/m2

3,Bonding strength (≥10mm in thickness) min 5500N

General Properties
Test Item	Unit		TypicalValue
			Grade
			3025	3025B
Flexural strength perpendicular to laminations	≥	MPa	91	107
Bonding strength(≥10mm in thickness)	≥	N	5500	5390
Insulation resistance after immersion in water(D-24/23)	≥	MW
Dielectricstrengthperpendiculartolaminations	≥	MV/m	4	4
(in90±5℃transformeroil,1mminthickness)			4	4
Breakdown voltage parallel to laminations	≥	KV
	≥	KV	(in90±2℃transformeroil)
Permittivity(50Hz)	≤	—
Permittivity(1MHz)	≤	—
Dissipationfactor(50Hz)	≤	—
Dissipationfactor(1MHz)	≤	—
Tensilestrength	≥	MPa	55	68
Impact strength parallel to laminations(Charpy)	≥	KJ/m2	25	25
Density		g/cm3	(1.30-1.40)	(1.30-1.45)
Water absorption(D-24/23,1.6mm in tickness)	≤	mg	220	-
Color		—	Natural
Reference standard		—	JB/T8149.2-2000	Enterprise Standard