What is Polyester Resins?

Polyester resin has many advantages, such as low cost, resistance to water and some chemicals, and reasonable temperature resistance. In Indonesia, there are many industries, especially in the marine industry. both ships and boats use this composite. Because it has low shrinkage properties, polyester is also used for 3D printing.

Polyester was invented around the 1940s. In the early era, polyester was often used in the textile industry. Due to its elastic and strong properties, the fabric is not easily torn. In addition to fabrics, polyester fibers are also used for ropes, carpets, and much more in the automotive interior world.

Polyester resin is an unsaturated thermoset resin produced by the reaction between several organic acids and polyhydric alcohols. Unsaturated polymer resins are formed from the action of condensation, and hence, they are also known as condensation polymers. In such reactions, the by-products are liquids, including water or methanol. For the manufacture of polyester resins, two sets of reactants are mainly used, namely, polyols, which include glycols (for example: ethylene glycol), and acid sets, including acids such as phthalic acid or maleic acid.

Unsaturated polymer resins are formed by the action of condensation. and by-products in the form of liquids, including water and methanol. For the manufacture of liquid polyester resins, two sets of reactants are mainly used, namely, polyols, which include glycols (for example: ethylene glycol), and acid sets, including acids such as phthalic acid or maleic acid. Liquid polyester is made so that polyester is easily formed into solid polymer.

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