硫化胶中防老剂的定性和定量分析  

Qualitative and Quantitative Analysis of Antioxidants in Vulcanizates

作　　者：李晨晨 刘丽 黄义钢 郭丽丽 高学腾 刘树峰 LI Chenchen;LIU Li;HUANG Yigang;GUO Lili;GAO Xueteng;LIU Shufeng(Qingdao Doublestar Tire Industry Co.,Ltd,Qingdao 266400,China)

机构地区：[1]青岛双星轮胎工业有限公司,山东青岛266400

出　　处：《轮胎工业》2022年第3期184-187,共4页Tire Industry

摘　　要：采用气相色谱-质谱(GC-MS)联用仪和提取特征离子的方法对硫化胶中的防老剂进行定性和定量分析。使用高效液相色谱仪对防老剂RD中二聚体和三聚体含量进行测定;采用手动剪样的制样方法,通过超声提取硫化胶中的防老剂,防老剂RD和防老剂4020的提取率分别为73.3%和76.1%,防老剂定量标准曲线的线性关系良好,线性相关因数均大于0.999,防老剂RD和防老剂4020的定量测定相对标准偏差分别为0.58%和1.70%,方法重复性良好;使用已知样品对防老剂定性和定量方法进行验证,结果表明该方法可以进行硫化胶中防老剂的定性和定量分析。The antioxidants in vulcanizates were analyzed qualitatively and quantitatively by gas chromatography-mass spectrometry(GC-MS)combined instrument and the method of extracting characteristic ions.The content of dimer and trimer in antioxidant RD was determined by high performance liquid chromatography.The antioxidant in vulcanizate was extracted by ultrasonic using the manually cut sample.The extraction rates of antioxidant RD and antioxidant 4020 were 73.3%and 76.1%,respectively.The quantitative standard curve of antioxidants had a good linear relationship,and the linear correlation factors were all greater than 0.999.The relative standard deviations of the quantitative determination of antioxidant RD and antioxidant 4020 were 0.58%and 1.70%,respectively,showing good repeatability.The method was also verified by using known samples.

关 键 词：硫化胶 防老剂RD 防老剂4020 二聚体 定性分析 定量分析 GC-MS联用仪 

分 类 号：TQ330.382[化学工程—橡胶工业]