Glue invention patent - an acrylic structural adhesive with good impact resistance
The invention belongs to the technical field of adhesives, in particular relates to an acrylate structural adhesive with good impact resistance, which contains rigid functional groups provided by hydrogenated bisphenol A and methacrylate functional groups, and can increase the curing drawing strength and impact resistance; The impact resistance can be greatly improved by adding toughening resin. The high curing agent content in component B can ensure the rapid reaction curing of the whole system. Curing at room temperature 3-5 min, hot pressing at 70℃ only 60s; Good impact resistance, can pass the disk tool test, cut a little can also maintain a strong adhesive; The forward drawing strength is high. After the forward drawing force test, the drawing force of the copper nail is generally required to be greater than 20Kg or the copper nail falls off. High temperature and humidity resistance is good, under the condition of 60℃ and 90% humidity, the strength does not decrease significantly in 7 days.
