What is a coupling agent-Iota

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Service > What is a coupling agent

What is a coupling agent

In plastics compounding, synthetic resin and inorganic filler to improve or enhance a material interface properties of plastics additives. Also known as surface modification agent. It in the plastic processing can reduce synthetic resin melt viscosity and improve the filler dispersion to improve the processing performance, and make the products have good surface quality and mechanical, thermal and electrical properties. The dosage is generally 0.5 to 2% of the amount of filler. Coupling agent generally consists of two parts composition: a part is pro inorganic moieties, and inorganic filler or reinforcement effect; another part is pro organic groups, and synthetic resin.
In reinforced plastics, chemical substances, which can improve the interfacial adhesion between the resin and the reinforcing material, can promote or establish a stronger binding substance on the interface of the resin matrix and the reinforcing material. Note: the coupling agent can be applied to the reinforcing material or in the resin, or both. Coupling agent application field, main function: glass fiber, glass fiber: improve the mechanical strength of composite materials wet state, wet state electrical properties, and improve the glass fiber bundle, protection and processing technology. Adhesives and coatings: improving the adhesion, weathering resistance, improving the dispersion of pigment, improving the wear resistance and resin crosslinking. Casting: improving the strength of resin sand. In order to achieve high, low gas. Rubber: to improve the mechanical strength, wear resistance, wet state electrical properties and rheological properties. Sealant: improving the adhesion of the wet state, improving the dispersion of the filler, the wear resistance of the products. Textiles: make the fabric soft and full, improve its waterproof, and the adhesion of the dye. Printing ink: improving the adhesion of the adhesive force. Filler surface treatment: in the resin to improve the compatibility of filler and resin, wettability, dispersion. Cross linked polyethylene: used in the enhanced strength of cross-linked polyethylene cable and hot water pipe. Durability and service life.

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