Japan's Maruzen Petrochemical Group's Maruzen Petrochemicals has developed a new curing catalyst for epoxy resins to meet environmental requirements. At present, the epoxy resin curing catalysts used in the industry are mostly nonyl phenols, but nonylphenol is an endocrine disrupting substance. Against this backdrop, the industry is eager to produce new curing catalysts that can replace them.
Epoxy resins cure at room temperature and generally use primary amines as curing agents and phenol-based compounds as curing catalysts. After establishing a new idea, the company started research on P-ethyi phenol and pt-butyl phenol (PTBP) and entrusted Kansai University with further discussion. The university experimented with a mixture of C2 PEP and C12 Dodecyl phenol at a ratio of 3 to 7, and the results showed that the catalytic effect was equal to that of nonylphenol, and the tensile strength increased by 30 to 40% in the plastic effect. From these, a new environment-type alkylphenol is available as an epoxy curing catalyst.
It is reported that the new product has been listed in Japan in late July and is expected to enter the Chinese market around September.
Epoxy resins cure at room temperature and generally use primary amines as curing agents and phenol-based compounds as curing catalysts. After establishing a new idea, the company started research on P-ethyi phenol and pt-butyl phenol (PTBP) and entrusted Kansai University with further discussion. The university experimented with a mixture of C2 PEP and C12 Dodecyl phenol at a ratio of 3 to 7, and the results showed that the catalytic effect was equal to that of nonylphenol, and the tensile strength increased by 30 to 40% in the plastic effect. From these, a new environment-type alkylphenol is available as an epoxy curing catalyst.
It is reported that the new product has been listed in Japan in late July and is expected to enter the Chinese market around September.