Phenolic cotton Laminated sheet

1>Mechanical applications,with poor electrical properties.
2>Mixed mode backing material.can substitute for some cotton cloth

 

3026

Mechanical properties(fine weave), poor electrical properties, good machining performance. Similar to IEC PFCC203.

3027

Mechanical and electrical applications(coarse weave), better electrical properties than other phenolic cotton cloth laminates.

3028

Mechanical and electrical applications(fine weave),  better  electrical properties than other phenolic cotton cloth laminates. Recommended for small parts.

 

3025B 3025C

l Temperature grade: E glass (120°C)

l Color: nature (light brown) 

l Thickness: 1.6-100mm

l Size: 1020x2040mm 1220x2470mm

 

3025CS

 Temperature grade: E glass (120°C)

 Color: black 

 Thickness: 1.6-100mm

 Size: 1020x1220mm 1020x2040mm 1220x2470mm

 

3025D

 Temperature grade: E glass (120°C)

 Color: nature 

 Thickness: 0.5-100mm

 Size: 1020x1220mm 1020x2040mm 1220x2470mm

 

3026

 Temperature grade: E glass (120°C)

 Color: nature (light brown)

 Thickness: 0.8-100mm

 Size: 1020x1220mm 1020x2040mm 1220x2470mm

 

3027

 Temperature grade: E glass (120°C)

 Color: nature (light brown)

 Thickness: 0.8-100mm

 Size: 1020x1220mm 1020x2040mm 1220x2470mm

 

 3028

 Temperature grade: E glass (120°C)

 Color: nature (light brown)

 Thickness: 0.8-100mm

 Size: 1020x1220mm 1020x2040mm 1220x2470mm

Properties		Unit	Grade
			3025CS	3026	3027	3028
Flexural strength perpendicular to laminations	≥	MPa	70	110	90	100
Impact strength parallel to laminations (Charpy)	≥		5.0	7.0	7.8	6.0
Bonding strength (≥10mm in thickness)	≥	N	5500	—	—	—
Dielectric strength perpendicular to lamination (in 90±2°C transformer oil, 1mm in thickness)	≥	kV/mm	—	0.82	5.1	6.3
Breakdown voltage parallel to laminations (in 90±2°C Transformer oil)	≥	kV	—	1	18	20
Permittivity (48-62Hz)	≤	—	—	—	5.5	5.5
Insulation resistance after Impregnated in water(D-24/23)	≥	Ω	—	1×106	5×107	5×107
Density			(1.30-1.40)
Water absorption (D-24/23, 1.6mm in thickness)	≤		—	220	145	145
Color			Black	Natural
Reference standard			Q/TXXFR001-2009

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