Phenolic Sheet, Bakelite Sheet, Cotton Sheet, Insulation Sheet for High Voltage Application (3A6011)

Phenolic Sheet, Bakelite Sheet, Cotton Sheet, Insulation Sheet for High Voltage Application (3A6011)

 

Description: the phenolic sheet, bakelite sheet are made by applying heat and pressure to layers of paper or glass cloth impregnated with phenolic resin with good electrical properties, good mechanical properties, no water absorption, high heat resistance, good surface hardness, abrasion resistance, good insulation. These layers of laminations are usually of cellulose paper, cotton fabrics, synthetic yarn fabrics, glass fabrics or unwoven fabrics. When heat and pressure are applied to the layers, a chemical reaction (polymerization) transforms the layers into a high-pressure thermosetting industrial laminated plastic. Apply to PCB fixture, ICT fixture, pads of drilling machine, gear, motor, generator, transformer, fixture inverter, switch, electric insulation part, generator, transformer, fixture, inverter, motor and electric insulation component.

 

Specification: 

materuial: phenolic resin + cotton fabric or paper

color: brown, beige, yellow, red

surface: smooth

tensile strength: 78Mpa

flexural strength: 90-110Mpa

compression strength: 138Mpa

breakdown voltage: 10KV

density: 1.25-1.40g/cm³

heat-resistant: B class 130

standard size: 1-80mm x 1m x 2m

OEM & customized size are agreed

packing in cartons, pallets or crates

***When you enquiry, pls confirm color, size and quantity***

Bakelite is called phenolic paper laminated sheet.  A hard, dense material made by applying heat and pressure to layers of paper or glass cloth impregnated with phenolic resin. These layers of laminations are usually of cellulose paper, cotton fabrics, synthetic yarn fabrics, glass fabrics or unwoven fabrics. When heat and pressure are applied to the layers, a chemical reaction (polymerization) transforms the layers into a high-pressure thermosetting industrial laminated plastic.
 
Color: orange red / Black 
 
Good electrical properties
Good mechanical properties
No water absorption
High heat resistance
Good surface hardness 
Abrasion resistance
Good insulation


 Application 
PCB fixture, ICT fixture, pads of drilling machine
Gear, motor, generator, transformer, fixture inverter
Switch, electric insulation part
Generator, transformer, fixture, inverter, motor and electric insulation component.
 

Properties				Grade
				Phenolic Cotton Cloth laminated Rod
Properties	Units			3723	3725	3726
Density		Dia(mm)	g/cm3	1.25-1.40	1.25-1.40	1.25-1.40
Water absorption rate (D-24/23)	≤	6	%	1.7	1.2	1
		13		1.3	(Φ13mm)	(Φ13mm)
		25		1
	>	25~51		1.2
Flexural strength	≥		MPa	90	110	95
Tensile strengh	≥		MPa	78	\	\
Compression strength (Axial)	≥		MPa	138	138	138
Insulation resistance parallel to laminations					\	\
A: Under normal condition	≥		W	1.0×108
D-24/23: Immersion in water	≥		W	\	\	\
Breakdown voltage parallel to laminations (in transformer oil)	≥		KV	10	10	10
				(20±5°C)	(20±5°C)	(20±5°C)
Flammability			-	-	-	-
Color			-	Natural	Natural	Natural
Reference standard			-	Enterprise Standard