An adhesion promoting composition for enhancing adhesion between an elastomeric substrate and a metal surface which, when applied at least in substantial contact with the metal surface, produces an elastomer-metal adhesive bond that withstands high temperature fluid and corrosive material environments and that can be applied without extensive pretreatment of the metal surface. The adhesion promoting composition comprises a phenolic resin derived from a first phenolic component, a second phenolic component, and a formaldehyde source, wherein the first phenolic component is a monohydroxy aromatic compound, a dihydroxy aromatic compound or a combination thereof, and the second phenolic component is a trihydroxy aromatic compound. A two-part adhesive composition containing a primer component and an overcoat component is also disclosed. The primer component contains the adhesion promoting composition and a first halogenated polyolefin while the overcoat component contains a second halogenated polyolefin and a nitroso compound.
一种用于增强弹性体基材与
金属表面之间粘合力的增粘组合物,当使用时至少与
金属表面有实质性接触,可产生弹性体-
金属粘合剂粘结,该粘合剂可耐受高温流体和腐蚀性材料环境,且无需对
金属表面进行大量预处理即可使用。增粘组合物包括由第一
酚醛成分、第二
酚醛成分和
甲醛源衍生的
酚醛
树脂,其中第一
酚醛成分是单羟基芳香族化合物、二羟基芳香族化合物或其组合,第二
酚醛成分是三羟基芳香族化合物。还公开了一种双组分粘合剂组合物,其中包含底漆组分和罩面漆组分。底漆组分包含增粘组合物和第一卤化聚烯烃,而罩面漆组分包含第二卤化聚烯烃和亚
硝基化合物。