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What Is Unsaturated Polyester Resin

Jun 09, 2020

Article Summary: Unsaturated polyester resin fiberglass has better process performance and lower price than epoxy resin, so it is more and more widely used in the marine industry. However, due to the unsaturated polyester fiberglass mechanically modified unsaturated Polyester resin Unsaturated polyester fiberglass has better process performance and lower price than epoxy resin, so it is more and more widely used in the marine industry, but due to unsaturated poly...

Unsaturated polyester resin glass fiber reinforced plastic has better process performance and lower price than epoxy resin, so it is more and more widely used in the marine industry. However, due to the unsaturated polyester fiberglass mechanically modified unsaturated polyester resin Unsaturated polyester fiberglass has better process performance and lower price than epoxy resin, so it is more and more widely used in the shipbuilding industry. However, due to the poor mechanical properties of unsaturated polyester fiberglass, its further restrictions Application, so it is necessary to modify it.


Studies have shown that rigid nanomaterials (SiOx, TiO2, etc.) can increase the strength, toughness, stiffness, and heat resistance of unsaturated polyester resins to varying degrees. This is because nanomaterials have unique size effects, local field effects, and quantum effects. Excellent performance. Nanomaterials have a large specific surface area, few surface defects, many unpaired atoms, high surface activity, and many opportunities for physical or chemical bonding with polymer chains, which improves the adhesion between the two, thereby increasing the strength and toughness of the matrix. The nanoparticles are small, the specific surface area is large, and the stress is concentrated, which can induce a large number of small cracks, thereby absorbing a large amount of impact energy and improving the impact strength.

Organic rectorite is also used to modify the unsaturated polyester. Studies have shown that organic rectorite can form a three-dimensional woven network structure with glass fiber and resin, which helps to improve the mechanical properties of FRP, especially interlayer shear strength.

Source:http://www.up-resin.com/

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