Introduction to the Selection of Glass Fiber Cloth for FRP Antenna Radomes


Release time:

2017-08-25

Wuhan University of Technology has established an innovative company specializing in the production of fiberglass antenna radomes. This article provides a brief overview of the glass fiber fabrics our company selects as raw materials for these radomes. In addition to alkali‑free glass fiber roving fabric (GB/T 18370‑2001) and E‑glass fiber fabric for printed circuit boards (GB/T 18373‑2001), the physicochemical properties of other alkali‑free glass fiber fabrics are specified by the JC/T 170‑2002 standard (see Table 1). Tensile breaking strength is listed in Table 2. Table 1: Product Designation, Fabric Structure, Fabric Density (threads/cm), Area Density (g/㎡), Thickness (mm), Typical Applications.

Wuhan University of Technology has pioneered a company specializing in the production of… Fiberglass antenna radome This article provides a brief overview of the glass fiber fabrics used as raw materials for our company’s radomes, focusing on alkali‑free, untwisted roving fabrics (GB/T 18370‑2001) and those employed in printed circuit boards. E Fiberglass cloth ( GB/T18373-2001 ) In addition, the physicochemical properties of other alkali-free glass fiber fabrics are determined by JC/T170-2002 Standard specifications (see the table below) 1 ) Tensile breaking strength (see the table below) 2 ).

Table 1

Product Code

Organization

Type

Fabric density / (root) /cm )

Mass per unit area / ( g/ ㎡)

Thickness / millimeter

Typical applications

Meridional

Zonal

EW25

Plain weave

28± 2

22± 2

17.5± 3

0.025± 0.005

Electrical insulation products

EW30A

Plain weave

18± 1

22± 1

25± 3

0.030± 0.005

Fishing rod

EW30B

Plain weave

24± 1

18± 1

21± 3

0.030± 0.005

Electrical insulation products

EW40

Plain weave

20± 1

18± 1

27± 3

0.040± 0.005

Electrical insulation products

EW60

Plain weave

20± 1

22± 1

52± 5

0.060± 0.006

Electrical insulation products

EW80

Twill

28± 1

12± 1

80± 8

0.080± 0.008

Fishing rod

EW90

Plain weave

18± 1

16± 1

85± 8

0.090± 0.009

Electrical insulation products

EW100

Plain weave

20± 1

20± 1

100± 10

0.100± 0.010

Electrical insulation products, fiberglass-reinforced plastic products

EW110

Plain weave

20± 1

13.5± 1

100± 10

0.110± 0.011

Electrical insulation products, fiberglass-reinforced plastic products

EW130

Twill

20± 1

12± 1

160± 16

0.130± 0.013

Fishing rod

EW140

Plain weave

16± 1

12± 1

135± 14

0.140± 0.014

Electrical insulation products, fiberglass-reinforced plastic products

EW180

Twill

20± 1

10± 1

220± 22

0.180± 0.018

Fishing rod

EW200

Plain weave

16± 1

12± 1

200± 20

0.200± 0.020

Electrical insulation products, fiberglass-reinforced plastic products

EW240

Twill

20± 1

10± 1

290± 29

0.240± 0.024

Fishing rod

 

Table 2

Product Code

Bad bra stretching breaking strength ≥

Scoured fabric and treated tensile breaking strength ≥

Meridional

Zonal

Meridional

Zonal

EW25

118

88

33

31

EW30A

160

120

44

42

EW30B

180

100

50

35

EW40

196

137

71

40

EW60

274

274

76

66

EW80

774

157

250

40

EW90

441

294

122

70

EW100

490

400

137

96

EW110

490

490

137

118

EW130

1078

294

400

70

EW140

650

450

180

140

EW180

1617

245

600

60

EW200

980

735

190

180

EW240

2064

294

700

70

1. Plain weave: In this type of fabric, each warp yarn passes under one weft yarn and over the next. Glass fiber fabrics exhibit the greatest crimp, resulting in lower strength compared to satin or twill weaves. This fabric is stiff and resists deformation, making it well suited for manufacturing fiberglass products with simple surface contours, particularly laminates. Fiberglass 。

2. Twill weave is characterized by diagonal ribs that run across the fabric surface. It offers excellent conformability, making it well suited for hand‑layup applications on fiberglass composites with doubly curved or irregular surfaces, while providing high strength in all directions.

3. Satin weave: In this type of fabric, the surface consists almost entirely of either warp or weft yarns. When a single yarn passes over the surface, it may go over three, seven, or eleven other yarns in the same direction. Glass fiber yarns exhibit minimal crimp, resulting in higher strength. Like twill fabrics, satin weaves offer excellent conformability and are well suited for hand lay-up applications involving complex‑shaped surfaces. Fiberglass Product.

4. Unidirectional fabric is a type of fabric in which a greater number of yarns are used per unit width in one direction—typically the warp—while fewer yarns are used per unit width in the other direction—the weft. Consequently, its tensile strength in the warp direction is significantly higher than that in the weft direction, depending on the material used… Fiberglass Product requirements may include pre‑defining the warp-to-weft strength ratio, for example: 4:1, 7:1 Wait.

For more information, please call the raw materials sales hotline at 027-87290637.


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