高效胺类抗氧剂的性能研究

Study on Properties of High Efficient Aromatic Amine Type Antioxidant

以二苯胺、苯基-α萘胺为原料,在催化剂作用下和C8烯烃进行烷基化反应,得到一种液态的烷基化芳胺类抗氧剂。对所得产品进行了理化指标和热稳定性分析,同时采用旋转氧弹法(RBOT)、粘度增长试验(VIT)、航空润滑油腐蚀和氧化安定性测定法、薄层氧化试验(TFOUT)、加压差热扫描试验(PDSC)、高温沉积物评定试验(TEOST)进行产品在基础油、航空润滑油、内燃机油中的性能评价。结果表明所得产品具有较好油溶性和流动性,又具有较好的抗氧化性能。

Taking the diphenylamine （DPA） and phenyl-α-naphthylamine （PANA） as the raw material, the high efficient liquid aromatic amine type antioxidant was synthesized by the alkylation of the raw material with C8 - olefins under the catalyst. The thermal stability, physical and chemical index of this additive were investigated. And the antioxidant performances in base oils, aircraft oils and engine oils were evaluated by various test methods such as RBOT, VIT, TFOUT, PDSC, TEOST. The result showed that the product is good not only at oil solubility and fluidity, but also at oxidation resistance.