Crosslinking agents are chemical compounds that create bonds between polymer chains, enhancing the material's strength and stability. By linking these chains together, crosslinking agents improve properties such as elasticity, thermal resistance, and chemical durability. They are commonly used in various industries, including plastics, rubber, and coatings. These agents can be categorized into two main types: chemical crosslinking agents, which form permanent bonds through chemical reactions, and physical crosslinking agents, which create temporary bonds through physical interactions. The choice of crosslinking agent depends on the desired properties of the final product and the specific application requirements.