Analysis and mechanism of adsorption of naphthenic mineral oil, water, formic acid, carbon dioxide, and methane on meta-aramid insulation paper

摘要: Based on surface science, adsorption of mineral oil, water, gas products (typified by CO2 and CH4), acids formic acid) meta-aramid insulation paper has been investigated molecular dynamics simulations. When the process finishes, free volume fraction in crystalline region is very small owing to stable arrangement fiber. In addition, number pores fiber pore size are small, configuration hydrogen bonds plays an important role, so it difficult for oil aging enter region. The irregular molecules amorphous means that easier than region, influence these substances greater order strengths four types acid > water > CO2 > CH4. Therefore, necessary monitor acid water contents transformers with as solid material.