The essential difference between crosslinking agents and coupling agents

Crosslinking agents generally refer to a class of chemicals that participate in resin cross-linking reactions, connecting active functional groups in the resin to form a network structure. Crosslinking agents can mainly improve the viscosity and elasticity of the working fluid, and should also have certain temperature and salt resistance characteristics according to the geological characteristics of the reservoir. In addition, some additives can be added to improve the overall performance of the working fluid.

Coupling agents generally refer to small molecules containing 3 or more hydrolyzable carbon functional groupsLearning materials, using small amounts can improve the adhesion of organic and inorganic materials, the reactivity of hydrolyzable functional groups, and the organic properties of carbon groupsThe surface can be fixed, which means it can form a bridge between the resin and the interface, increasing the adhesion of the coating and adhesive with minimal usage.

The difference between these two is not significant, coupling agents are a type of substance with two different functional groups. Some functional groups in their molecules can react with adsorbed water or hydroxyl groups on inorganic surfaces, while others can react with organic molecules to form bonds or couplings. There is not much difference between crosslinking agents and bridging agents, as both can crosslink linear molecules into a network structure.

Crosslinking agents are mainly used in polymer materials because the molecular structure of polymer materials is like long lines. Without crosslinking, the strength is low, it is easy to break, and there is no elasticity. The function of crosslinking agents is to create chemical bonds between linear molecules, connecting them together to form a network structure, thus improving the strength and elasticity of rubber. The crosslinking agent used in rubber is mainly sulfur, and accelerators need to be added.