Q
polyester resin structure
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Polyester resins are a group of synthetic resins formed by the reaction of dibasic organic acids and polyhydric alcohols. Their structure is characterized by the ester functional group (R-COO-R'), which originates from the acid and alcohol components. These resins are widely used in the composites industry, particularly in the production of fiberglass reinforcements and casting. The versatility of polyester resin comes from its ability to be modified with various additives and reinforcements, allowing for a range of properties from high strength to flexibility and durability. The molecular structure can be tweaked to alter characteristics like curing time, mechanical strength, and chemical resistance, making polyester resins adaptable to a wide array of applications, from automotive parts to marine and construction materials. Despite their many benefits, it's important to note that polyester resins have environmental implications, as they are derived from petrochemicals and are not biodegradable.
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