闪蒸气相色谱-质谱联用法鉴定硫化胶中的常用促进剂种类  

Identification of Accelerator in Vulcanizates by Flash Evaporation Gas Chromatography-Mass Spectrometry

作　　者：郭丽丽 刘丽 黄义钢 李晨晨 高学腾 刘树峰 GUO Lili;LIU Li;HUANG Yigang;LI Chenchen;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2期124-127,共4页Tire Industry

摘　　要：采用闪蒸气相色谱-质谱联用法鉴定硫化胶中常用的促进剂种类。结果表明:当特征反应产物仅有苯并噻唑基团时,促进剂为MBT或MBTS;当特征反应产物除苯并噻唑外,还有叔丁胺、环己胺或二环己胺基团时,可分别判定为促进剂TBBS,CBS,DCBS或其与促进剂MBT/MBTS共存。本方法采用裂解器直接进行硫化胶样品闪蒸,分析效率高,结果准确可靠。The types of accelerators used in vulcanizates were identified by flash evaporation gas chromatography-mass spectrometry(GC-MS).The results showed that when the characteristic reaction product only had benzothiazole group,the accelerator was MBT or MBTS.When the characteristic reaction products also had the groups of tert-butylamine,cyclohexamine or dicyclohexamine in addition to benzothiazole,it could be determined as the accelerator TBBS,CBS and DCBS,respectively,or their combination with accelerator MBT/MBTS.This method used a pyrolysis device to directly flash the vulcanizate samples,and had high efficiency and reliable results.

关 键 词：闪蒸法 气相色谱-质谱联用 硫化胶 噻唑类 次磺酰胺类 促进剂 鉴定 

分 类 号：TQ330.385[化学工程—橡胶工业]