Plastic pipe reinforced-thermosetting-resin

In the context of corrosion, composites refer to glass or other fiber or flake-reinforced thermosetting resins. Composite products use for their anticorrosion properties are fiberglass-reinforced pipe and storage tanks, fiber-reinforced plastic grating, handrails, I-beams, and other shapes equal to these that are made of steel. 

The use and acceptance of buried large-diameter glass fiber, plastic reinforced, filament-wound pipe has increased steadily since the 1950s. Such RP was selected for its superior corrosion-resistance characteristics and installation-cost savings. ASTM standards use the term Reinforced Thermoset Resin Pipe (RTRP). Filament-wound pipe with a double helical angle of continuous-glass reinforcement (discussed later) is but one of several types of RTR pipe constructions. 

Corrosion Resistant Fiber-Reinforced Plastic (FRP), Fiber glass reinforcement bonded with furfuryl alcohol thermosetting resins provides plastics with unique properties. Excellent resistance to corrosion and heat distortion coupled with low flame spread and low smoke emission are characteristics that make them valuable as laminating resins with fiber glass (75,76). Another valuable property of furan FRP is its strength at elevated temperature. Hand-layup, spray-up, and filament-winding techniques are employed to produce an array of corrosion-resistant equipment, pipes, tanks, vats, ducts, scrubbers, stacks, and reaction vessels for industrial applications throughout the world. 

Chem. Descrip. Bisphenol A fumarate polyester resin Uses Polyester for reinforced thermoset plastic equip, incl. filament wound and hand lay-up tanks, pipes, pumps, flooring, stacks, scrubber, equip, handling corrosives, and in fiberglass linings, coatings, and monolithic toppings... 

Uses Thermoset resin for reinforced plastics, automotive parts, protective coatings, ducts, housings, flues, laminates, pipes, terrazzo tiles, cultured marble sinks, spas vehicle for pigment grinding binder in industrial flooring/coatings in food-contact coatings... 

EN 1115 Parts 1-7 Plastics piping systems for underground drainage and sewerage under pressure - glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resin (UP). 

Indirect Contact. Direct contact was more popular in the past, when none of the common construction metals was resistant to chlorine. Typical materials of construction were thermosets (such as a phenolic resin reinforced with asbestos) for vessels and stoneware or glass for piping. This situation changed with improvements in fiber-reinforced plastic fabrication and the commercial advent of titanium. The indirect-contact approach has now become a standard. The typical chlorine cooler today is a single-pass vertical shell-and-tube exchanger with titanium tubes and tube sheets and a carbon steel shell (or perhaps FRF in smaller units). Construction of tube sheets may be of solid titanium, or they may be clad or explosion-bonded with titanium. The inlet channel to the primary cooler also may be of titanium the other channels usually are of FRR... 

Fiberglass-Reinforced Plastics. To obtain high-quality pipe connections, the surfaces to be joined must be roughened and the pipes carefully tapered. Polyester adhesives or thermosetting epoxy resin adhesives are best suited for bonding. A pressure of 50 -100 N/cm is applied to the joined surfaces. 

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