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352 Polyester Imine Laminated Glassfiber Sheet

This laminated sheet products made of non alkali glass fiber cloth impregnated with polyurethane resin by baking and hot pressing.

 

E-mail:yolo@ztaero.com


352  Polyester imine laminated glassfiber sheet 

Standards: GB/T 1303.9-2009 / IEC60893-2:2003
 

Description

This laminated sheet products made of non alkali glass fiber cloth impregnated with polyurethane resin by baking and hot pressing. This product has excellent heat resistance, electrical insulation, wave transmission, radiation resistance, flame retardancy, and mechanical properties. Heat resistant grade H is an ideal insulating material for class H electrical equipment.

Technical parameters

No.

Item

Unit

Index

3250

350

352

BMI GC301

BMI GC302

347

PAIGC301

1

Appearance

The surface is smooth, uniform color, no bubbles, wrinkles, neat edge cutting, no delamination in the section

2

Density

g/m³

1.8-1.95

3

Vertical flexural strength (normal)

MPa

≥320

≥300

≥300

≥350

≥380

≥350

≥400

4

Parallel layer impact strength (simple supported beam method)

KJ/m2

≥45

≥42

≥38

≥60

≥60

≥60

≥60

5

Vertical layer electrical strength (90 degrees transformer oil,1mm)

Kv/mm

≥8.0

≥8.0

≥14.0

≥14.0

≥14.0

≥14.0

≥14.0

6

Parallel layer breakdown voltage (90 degrees transformer oil)

kv

≥35

≥35

≥40

≥35

≥40

≥35

≥40

7

 Dielectric constant (50Hz)

≤4.5

≤5.5

≤5.5

≤5.5

≤5.5

≤5.5

≤5.5

8

 Dielectric loss factor (50Hz)

≤0.02

≤0.05

≤0.05

≤0.04

≤0.05

≤0.05

≤0.03

9

Insulation resistance after soaking

Ω

≥1.0*1010

≥1.0*1010

≥1.0*1010

≥1.0*108

≥1.0*108

≥1.0*108

≥1.0*108

10

 Resistance index

(PTI)

≥300

≥280

≥280

≥500

≥500

11

Combustibility

V-0

12

Temperature index

180

180

180

180

180

155

200

13

 Water absorption (thickness 1-20mm )

mg

32~125

64~200

64-193

64~193

64~193

64~193

64~227