PAN-based carbon fiber precursor oiling agent and preparation method thereof

The invention relates to the technical field of spinning oil agents, in particular to a PAN-based carbon fiber precursor oil agent and a preparation method thereof. The PAN-based carbon fiber precursor oiling agent is prepared from the following components in percentage by mass of 5%-50% of amino and epoxy group modified organic silicon emulsion, 5%-35% of polyether modified organic silicon emulsion, 0.5%-10% of quaternary ammonium salt, 0.1%-5% of a wetting agent and deionized water. During preparation, the amino and epoxy group modified organic silicon emulsion and the polyether modified organic silicon emulsion are added into a variable-speed mixer according to the proportion and stirred uniformly, then the quaternary ammonium salt is added according to the proportion and stirred, finally the wetting agent and the deionized water are slowly added according to the proportion, and the materials are stirred uniformly and sub-packaged. The PAN-based carbon fiber precursor oiling agent is good in quality stabil