标准摘要
[中文适用范围]: 本文件规定了评价次磺酰胺促进剂的方法: — MBTS:二硫化苯并噻唑; — CBS:N-环己基苯并噻唑-2-次磺酰胺; — TBBS:N-叔丁基苯并噻唑-2-次磺酰胺; — DIBS:N,N'-二异丙基苯并噻唑-2-次磺酰胺; — DCBS:N,N'-二环己基苯并噻唑-2-次磺酰胺; — MBS:N-氧基二乙烯苯并噻唑-2-次磺酰胺。 注 1:尽管 MBTS 不是次磺酰胺,但它是这些促进剂的主要分解产物,可通过 5.2 中规定的方法定量测定。这些分析方法适用于大多数商用次磺酰胺促进剂: — 一级胺的次磺酰胺(I 型); — 非受阻二级胺的次磺酰胺(II 型); — 受阻仲胺的亚磺酰胺(III 型)。 注 2:亚磺酰胺促进剂的分类和主要性质见附录 A。 优选采用高效液相色谱法(HPLC)测定纯度的方法(5.2)。 [外文原描述]: This document specifies the methods to be used for the evaluation of sulfenamide accelerators: — MBTS: benzothiazyl disulphide; — CBS: N -cyclohexylbenzothiazole-2-sulfenamide; — TBBS: N - tert -butylbenzothiazole-2-sulfenamide; — DIBS: N , N '-diisopropylbenzothiazole-2-sulfenamide; — DCBS: N , N '-dicyclohexylbenzothiazole-2-sulfenamide; — MBS: N -oxydiethylenebenzothiazole-2-sulfenamide. NOTE 1 Although MBTS is not a sulfenamide, it is the primary decomposition product of these accelerators and quantitatively determined by the method specified in 5.2. The analytical methods are applicable for most commercial sulfenamide accelerators: — sulfenamides of primary amines (type I); — sulfenamides of unhindered secondary amines (type II); — sulfenamides of hindered secondary amines (type III). NOTE 2 Classification and key properties of sulfenamide accelerators are described in Annex A. The method (5.2) to determine purity by high performance liquid chromatography (HPLC) is the preferred method.
英文名称Rubber compounding ingredients — Sulfenamide accelerators — Test methods