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3026 Phenolic Laminated Cotton Sheet PFCC203

This product use cotton impregnated with phenolic resin and formed by hot pressing, it is with strong mechanical and electrical properties.Heat resistance class is E.

 


Description

3026 Phenolic Laminated Cotton Sheet PFCC203

Standard: GB/T 1303.6-2009 / IEC60893-2:2003

This product use cotton impregnated with phenolic resin and formed by hot pressing, it is with strong mechanical and electrical properties.Heat resistance class is E.

Property : Fine cotton,stronger mechanical and electrical performance.

Technical parameters

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