2018-05-12 18:04:32

Brief Introduction of Glass Fiber

Fiberglass yarns consist of a continuous multifilaments, which are formed by molten glass raw materials though dies containing many orifices. These filaments

are gathered together, mechanically attenuated, and solidified as they are wound up onto a high speed winder. At the same time, the yarn is lubricated with sizing to assist in

subsequent processing.Usually, there are E glass, ECR glass, C glass, S glass, AR glass for regular applied in the markets. 

Idnentification of glass fiber yarn

ECG 150 1/2 2.8S

E: E glass

C: Continuous filament

G: Fiber diameter:9um  BC=4-4.5um D=5-5.5um DE=6um G=9um  H=10-11um

150:15,000Yd/Lb(Nominal)of basic singles strand, 34gram per kilometers

1/2:2 filament yarn piled one ply

2.8: 2.8 twists per inch

S: S direction twist 

Composition,%ECR glassE glass C glass AR glass S glass
SiO254-6252-5664-6855-7564-66
AL2O39-1612-163-50-524-25
B2O3
5-104-60-8
CaO17-2416-2511-151-100-0.2
MgO0-40-52-4
9-10
ZnO2-5



Na2O+K2O
0-27-1011-210-0.2
TiO2
0-1
0-12
ZrO2
0-0.8
14.5/16.7
Fe2O3

0-0.80-50-0.1
Physical properties
Density, g/cc 2.722.542.522.72.46
Softening point,9008507507701050
Strain point,730615530
760
Tensile strengh,Mpa34453445331032404600
Young's Modulus, GPa8072697387
Elongation, %4.84.84.64.45.3
Chemical properties (weight loss percentage)




H2O @168hrs0.70.92.91.40.7
10% HCL @168hrs7.7437.53.05.0
10% H2SO@168hrs10.4424.95.45.7
10% Na2CO@168hrs1.82.1311.52.1