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现行 ISO 9924-2:2016
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Rubber and rubber products — Determination of the composition of vulcanizates and uncured compounds by thermogravimetry — Part 2: Acrylonitrile-butadiene and halobutyl rubbers 橡胶和橡胶制品 - 通过热重分析测定硫化橡胶和未固化的化合物的组成 - 第2部分:丙烯腈 - 丁二烯和卤代丁基橡胶
发布日期: 2016-07-18
ISO 9924-2:2016规定了一种热重分析法,用于测定硫化胶和未固化化合物中的总有机物含量、炭黑含量、含碳残留物和灰分,其中含有在热解时形成含碳残留物的聚合物(见1.2)。300°C左右的质量损失是化合物挥发物含量的近似指南。 该方法适用于分析橡胶化合物和硫化胶,其中含有ISO 9924?1所涵盖的碳氢化合物聚合物,以及以下具有极性基团的共聚物,这些极性基团在热解时形成含碳残留物: a) 丙烯腈-丁二烯共聚物(NBR); b) 羧基化丙烯腈-丁二烯共聚物(XNBR); c) 氢化丙烯腈-丁二烯共聚物(HNBR); d) 氯化异丁烯-异戊二烯共聚物; e) 溴化异丁烯-异戊二烯共聚物(BIIRs)。
ISO 9924-2:2016 specifies a thermogravimetric method for the determination of the total organic content, carbon black content, carbonaceous residue and ash in vulcanizates and uncured compounds containing polymers which form a carbonaceous residue on pyrolysis (see 1.2). The loss in mass at around 300 °C is an approximate guide to the volatile-matter content of the compound. The method is suitable for the analysis of rubber compounds and vulcanizates containing the hydrocarbon polymers covered by ISO 9924?1 plus the following copolymers with polar groups which form a carbonaceous residue on pyrolysis: a) acrylonitrile-butadiene copolymers (NBRs); b) carboxylated acrylonitrile-butadiene copolymers (XNBRs); c) hydrogenated acrylonitrile-butadiene copolymers (HNBRs); d) chlorinated isobutylene-isoprene copolymers (CIIRs); e) brominated isobutylene-isoprene copolymers (BIIRs).
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归口单位: ISO/TC 45/SC 2
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