Abstract:
In the manufacture of laminates used for the electronic industry, glass fibers are used for reinforcement. Laminates are composed of several plies of glass fabrics encapsulated with a polymeric resin. The most common fabric fiber material used today in laminate manufacture is E-glass, a continuous filament glass yarn with a chemical composition by weight of mostly SiO2, but also containing various amounts of CaO, Al2O3 and other materials. Advantages of E-glass lie in its high tensile strength, water resistance, bond stability with resins, and relatively low cost. The dielectric constant (6.3 at 23 oC and 1 MHz) is high, but acceptable for most low frequency applications...
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