3241 Semiconductor Laminated Glassfiber Sheet

Semiconductor laminated glassfiber sheet 3241 It adopts electrical non-alkali glassfiber cloth impregnated with epoxy resin and adds conductive ingredients and then is formed by baking. It is with high mechanical and semiconductor properties, good heat resistance, suitable for large motor slot wedge Anti-corona material. Heat resistance class is B.
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

Note: Due to continuous product improvement, the dimensions provided in this sample are for reference only. If necessary, our company can design and produce according to user requirements. Please contact the company in time.