Phenoilc Cotton Cloth Board/Bakelite Hylam Sheet/Tufnol Sheet

Product Description
Product Video
Product Parameter

No.

Project

Unit

3021

3025

3025—A

3026

3027

3241

1

Appearance

-

Smooth surface, uniform color, no bubbles, no wrinkles, edge cutting neat, no stratification.

2

Density

g/m³

1.25~1.4

1.3~1.4

1.75-1.90

3

Vertical layer bending strength(normality)

MPa

≥120

≥100

≥90

≥110

≥125

≥300

4

Tensile strength

MPa

≥100

≥80

 

5

Parallel impact strength

(Simply supported beam)

KJ/m2

-

≥7.8

≥50

6

Parallel layer shear strength

MPa

≥10

≥25

≥25

≥20

≥25

≥30

7

Adhesive strength

N

≥3600

-

8

Electrical strength

Vertical layer(in 90℃transformer oil )( thickness 1mm )

Kv/mm

≥15.8

≥5.1

≥5.1

≥5.1

≥5.1

≥8.0

Parallel layer breakdown voltage(in 90℃transformer oil )

kv

≥35

≥20

≥35

9

Insulation resistance after water immersion

Ω

-

≥5*107

≥1.0*108

10

Dielectric constant(1MHz)

-

≤5.5

11

PTI

-

≥100

-

12

Water absorbing ( thickness 1-20mm)

mg

180~970

206~406

136~277

64-193

 

Name

IEC name

Property

3025

PFCC201

Course cotton,Mechanical, electrical performance in general.

3025-A

PFCC202

Media-fine cotton,strong mechanical and electrical performance .

3026

PFCC203

Fine cotton,stronger mechanical and electrical performance.

3027

PFCC305

Electrical use fine cotton,higher mechanical electric and dielectric performance.

More Information

3027 Phenolic Laminated Cotton Sheet
Standard: GB/T 1303.6-2009 / IEC60893-2:2003
This product use cotton impregnated with phenolic resin and formed by hot pressing, It has strong mechanical and electrical properties.Heat resistance class is E.