Nowadays, many outdoor furniture, including outdoor leisure chairs, outdoor leisure tables, even tables and chairs, outdoor leisure facilities, etc. are all made of FRP. It is a glass fiber reinforced material. It is a new type of composite material developed in the early 20th century. It has quality. Light, high strength, anti-corrosion, insulation, insulation, sound insulation and many other advantages.
The earliest composite material was FRP, but it has nothing to do with steel. FRP does not contain iron at all and is not a composite of glass and steel. In fact, FRP is fiberglass and
A material obtained by compounding one or several thermosetting or thermoplastic resins such as phenol resin, epoxy resin, polyester resin, polyimide resin, and the like.
The first type of FRP is a composite of glass fiber and phenolic resin. The glass fiber is impregnated with a liquid raw material of a phenolic resin, and then preformed by a molding method, and then the phenol resin is cured to form a glass fiber reinforced plastic.
Corrosion resistant and long life. FRP is a high quality composite. It has special anti-corrosion function for various corrosive media such as acid, alkali, salt and oil, and will not cause rust. Ordinary PVC has a life of 15 years and FRP has a life of 50 years.
FRP has the advantage of high strength. The reason is that ordinary glass is a brittle material with low strength. If the molten glass is drawn into very fine glass fibers, its performance changes greatly. Glass fibers are very soft and can even be woven into cloth. At the same time, the finer the glass fiber, the higher its strength. The strength of FRP can be compared to reinforced concrete. In reinforced concrete, the external force is mainly steel, but concrete is indispensable. It bonds the steel into a whole, which not only gives the building members a certain shape, but also increases the strength. In FRP, the glass fiber acts like a steel bar, while the phenolic resin acts as a concrete, and the combination of the two makes the FRP have an amazing strength.
FRP has high strength and excellent corrosion resistance, making it an important corrosion-resistant material. Lead used to be a corrosion-resistant metal material that is resistant to the corrosive sulfuric acid. The reason is that lead and concentrated sulfuric acid react to form insoluble lead sulfate, which becomes a dense protective film covering the surface of metal lead. Therefore, the reaction vessel and pipeline of the chemical plant are often lined with lead, and enamel lining can also be used. If FRP is used instead, the corrosion resistance is satisfactory. FRP is also used in valves, pumps, and fans. It is suitable for car tankers and train tankers that transport corrosive liquids. It is used in chemical plants to store corrosive liquid storage tanks, waste acid waste liquid pools and large-area anti-corrosion grounds. . The corrosiveness of petroleum is also very strong. FRP can be used to replace steel pipes to manufacture oil pipes and oil trucks, which greatly saves steel.
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