差示扫描量热法测定防老剂4020的纯度  

Determination of Purity of Antioxidant 4020 by DSC Method

作　　者：顾瑛 胡祥伟 郦坚[1] 王丹灵[1] GU Ying;HU Xiangwei;LI Jian;WANG Danling(Zhongce Rubber Group Co.,Ltd,Hangzhou 310018,China)

机构地区：[1]中策橡胶集团有限公司,浙江杭州310018

出　　处：《轮胎工业》2021年第2期124-126,共3页Tire Industry

摘　　要：研究差示扫描量热(DSC)法测定防老剂4020的纯度。确定的测试条件如下:取样量2~3 mg,升温速率0. 7℃·min^(-1),保护气体流速20~40 mL·min^(-1)。试验结果表明DSC法测定防老剂4020的纯度与常规气相色谱法测定值很接近,同时该方法操作简单、用时短,对环境友好。Determination of the purity of antioxidant 4020 by differential scanning calorimetry(DSC)method was studied.The test conditions were as follows:sample weight 2~3 mg,heating rate 0.7℃·min-1,and protective gas flow rate 20~40 mL·min-1.The test results showed that the purity of antioxidant 4020 measured by DSC method was very closed to the values of conventional gas chromatography(GC)method.At the same time,this DSC method was simple to operate,short in time and environmentally friendly.

关 键 词：差示扫描量热法 防老剂4020 纯度 气相色谱法 

分 类 号：O657[理学—分析化学] TQ330.382[理学—化学]