Flame-retardant adhesive preparation method

The flame-retardant adhesive is prepared by first mixing neoprene, 210-type resin, and triple-grinding ethylene with dioxane methane at room temperature to form reactant A. In a separate process, 2402-type resin, magnesium oxide, and triple-grinding ethylene are combined to create reactant B. These two reactants are then thoroughly mixed, and an antioxidant is added to finalize the product.

The raw material composition is carefully balanced to ensure optimal performance. The formulation includes: grinding rubber (90–120 parts), 210-type resin (14–28 parts), 2402-type resin (5–10 parts), triple-grinding ethylene (400–700 parts), methylene chloride (150–250 parts), magnesium oxide (0.04–0.1 part), and antioxidant (0.5–1.0 part). This precise ratio ensures both stability and effectiveness in bonding applications.

This adhesive is particularly well-suited for bonding cotton canvas, vinylon, nylon, and other materials used in conveyor belts in coal mines, power plants, and other high-risk fire prevention areas. It can also be used for bonding rubber, synthetic fibers, cotton fabrics, leather, bamboo, decorative materials, and certain types of plastics, making it a versatile solution for industrial and commercial use.

Key features of this product include a simple and efficient production process, a long service life, and high bond strength. It achieves a shear strength of up to 210 N/cm² within 20 minutes and reaches a final shear strength of 402 N/cm², along with a peel strength of 252 N/2.5 cm. The adhesive cures quickly, is non-flammable, and offers a safe and reliable bonding solution in environments where fire safety is critical.