Two-component acrylic structural adhesive for metal oily surface adhesion

• Main Author: TONG LINGJIE
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2021
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; USE OF MATERIALS AS ADHESIVES

The invention relates to a two-component acrylic structural adhesive for metal oily surface adhesion, which comprises a component (A) and a component (B), wherein the component (A) comprises 35-70 parts by weight of a polymerizable acrylate monomer, 1-10 parts by weight of an acidic polymerizable acrylate monomer, 0.2-2.0 parts by weight of a tertiary amine reducing agent, 5-10 parts by weight of a non-reactive toughening agent and 15-35 parts by weight of a reactive toughening polymer, the polymerizable acrylate monomer does not comprise methyl methacrylate and/or cyanoacrylate; and the component (B) comprises 20-35 parts by weight of an epoxy resin, 20-35 parts by weight of a diacyl peroxide, 15-30 parts by weight of an inorganic filler, and 10-30 parts by weight of an inert liquid carrier. By utilizing the adhesive disclosed by the invention, not only can the metal oily surface be directly bonded, but also the metal oily surface can be bonded with high bonding strength (higher than 5N/mm), and meanwhile, t