General Purpose Glass-Reinforced Resins

Figure 4.41 Flexural modulus vs. temperature for Celanese Celanex general purpose glass fiber reinforced PBT resins [3].

The combination of an adhesive and adherend is a laminate. Commercial laminates are produced on a large scale with wood as the adherend and phenolic, urea, epoxy, resorcinol, or polyester resins as the adhesives. Many wood laminates are called plywood. Laminates of paper or textile include items under the trade names of Formica and Micarta. Laminates of phenolic, nylon, or silicone resins with cotton, asbestos, paper, or glass textile are used as mechanical, electrical, and general purpose structural materials. Composites of fibrous glass, mat or sheet, and epoxy or polyester resins are widely employed as reinforced plastic (FRP) structures. 

Poly(phenylene oxide) resins are available in general-purpose, flame-retardant, glass-reinforced extrudable, foamable, and specialty grades. In addition to their apphcations as apphance, electrical, and... 

Figure 4.90 Stress vs. strain at various temperatures for DuPont Rynite 545—general purpose, 45% glass fiber reinforced PET resin [7].

Figure 6.171 Stress vs. strain for DuPont Zytel 77G33L NC010—general purpose, lubricated, 33% short glass fiber reinforced Nylon 612 resin (DAM).

B-staged epoxies and polyesters in glass cloth are used to bind and tie armatures, transformers and coils together. This reinforced material replaces previously used steel bonding, which had to be carefully insulated to eliminate shorting other electrical components. Acrylic resins on glass cloth or Nomex is used in hermetic and general purpose motors because of their resistance to DuPont s Freons, solvents, and oils. 

Electronic baseboards are used for mounting the chips, transistors and other elements of electronic circuitry. They are generally made of either phenolic resin reinforced with cellulose (paper), or epoxy resin reinforced with glass fibre.Their principal purpose is to give physical support to the circuit elements while insulating them from... 

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