橡胶和橡胶制品 热重法测定硫化橡胶和未硫化胶料的组成 第3部分：烃橡胶、卤化橡胶和聚硅氧烷橡胶

[中文适用范围]： 本文件规定了一种热重法，用于测定橡胶化合物（例如弹性体、炭黑和矿物填料）的主要成分。该方法建立了测试材料的“指纹”。但是，结果并不总是与橡胶的理论公式完全一致。该方法适用于生橡胶或复合橡胶、硫化橡胶和未硫化橡胶，有或无萃取。该方法适用于单独或作为混合物使用的具有烃骨架的橡胶（NR、BR、SBR、IIR、EPDM、ACM、AEM 等）。对于混合物，聚合物含量对应于总橡胶，通常无法识别单个聚合物。该方法适用于具有卤代烃骨架的橡胶（CR、CSM、FKM、CM、CO、ECO 等）或含氮橡胶（NBR、HNBR、NBR/PVC 等），以及它们的混合物。但是，这些橡胶通常会形成碳质残留物，干扰分析。采用适当的方法可以最大限度地减少这些干扰。该方法也适用于具有聚硅氧烷骨架的橡胶（VMQ 等）以及上面未列出的橡胶。 [外文原描述]： This document specifies a thermogravimetric method for the determination of the main constituents of rubber compounds such as elastomer(s), carbon black and mineral filler. It establishes the “fingerprint” of the tested material. However, the result does not always correspond exactly to the theoretical formula of the rubber. This method applies to raw or compounded rubbers, vulcanized and unvulcanised, with or without extraction. This method applies to rubbers with hydrocarbon backbones (NR, BR, SBR, IIR, EPDM, ACM, AEM, etc.) used alone or as mixtures. For the mixtures, the polymer content corresponds to the total rubber and it is not usually possible to identify individual polymers. This method applies to rubbers with halogenated hydrocarbon backbones (CR, CSM, FKM, CM, CO, ECO, etc.) or containing nitrogen (NBR, HNBR, NBR/PVC, etc.), as well as to their mixtures. However, these rubbers often form carbonaceous residues which interfere with the analysis. Application of an appropriate procedure minimizes these interferences. This method also applies to rubbers with a polysiloxane backbone (VMQ, etc.) and to rubbers not listed above.