Polythiol epoxy resin curing agent


Epoxy adhesive is a common type of adhesive and a widely used structural adhesive. The cured products of epoxy resin adhesives have excellent ability to adhere to various materials and possess several common characteristics, including chemical resistance, heat resistance, durability, aging resistance, good electrical properties, and waterproofing.

With the successive development of various adhesive theories and the in-depth progress of fundamental research on adhesive chemistry, rheology, and adhesive failure mechanisms, the performance, variety, and applications of adhesives have made tremendous advances. Epoxy resins and their curing systems, with their unique and superior properties, as well as the continuous emergence of new types of epoxy resins, curing agents, and additives, have become an important class of adhesives with excellent performance, diverse varieties, and wide adaptability.

The curing agents in epoxy adhesives react chemically with epoxy resins to form a three-dimensional cross-linked polymer. The classification of curing agents includes alkaline, acidic, addition type, catalytic type, apparent type, and latent type. According to the curing temperature, curing agents can be divided into four categories: low-temperature curing agents with a curing temperature below room temperature, room-temperature curing agents with a curing temperature ranging from room temperature to 50°C, medium-temperature curing agents ranging from 50 to 100°C, and high-temperature curing agents with a curing temperature above 100°C. Polythiol, introduced by GreenNew Materials, can be used in low-temperature fast-curing epoxy adhesives.

Green New Materials' polythiol GL1800 is a low-temperature fast-curing agent for epoxy resins. It is a transparent liquid with a viscosity range of 10,000 to 15,000 mPa·s at room temperature (25°C). It has a mercaptan content of ≥12, a color value of ≤20, and can be used for fast curing of epoxy adhesives, electronic adhesives, metal epoxy putty, thermal conductive adhesives, anti-corrosion coatings, photovoltaics, and other applications after catalysis.

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