Screening method of antioxidant in butylbenzene resin

The invention provides a method for screening antioxidants in butylbenzene resin, which comprises the following steps of: observing the color of a sample added with different antioxidants, performing GPC (Gel Permeation Chromatography) test, and judging whether the antioxidants selected in the sample meet the requirements or not according to the color change time of the sample and the area ratio increase rate of macromolecules in the sample. According to the screening method for the antioxidant in the butylbenzene resin, the antioxidant in the butylbenzene resin is screened, the screening method is short in time consumption, high in speed, high in efficiency and quite accurate in screening result, and a new method is provided for screening the antioxidant in the butylbenzene resin. 本发明提供一种丁苯树脂中抗氧剂的筛选方法，所述筛选方法包括对添加有不同抗氧剂的样品进行颜色观察和进行GPC测试，根据样品颜色发生变化的时间和样品中大分子面积占比增加率来判断该样品中所选用的抗氧剂是否符合要求，进而得到符合要求的样品，完成所述丁苯树脂中抗氧剂的筛选，所述筛选方法耗时短，速度快，效率高，且筛选结果十分准确，为丁苯树脂中抗氧剂的筛选提供了一种新的方法。