标准摘要
[中文适用范围]： 本文件规定了低分辨率脉冲核磁共振波谱（LR-NMR）测定聚丙烯（PP）全同立构指数的相关方法。 该方法可以根据该方法对 H 型丙烯 (PP-H) 塑料进行识别和编码。 该方法适用于基础聚合物，不适用于混合物。 注：ISO 9113 中规定了测定聚丙烯全同立构指数的直接方法。 [外文原描述]： This document specifies a relative method for the determination of polypropylene (PP) isotactic index by low-resolution pulsed nuclear magnetic resonance spectroscopy (LR-NMR). This method enables the identification and coding of types H propylene (PP-H) plastics according to ISO 19069‑1. This method is suitable for base polymers and is not applicable for mixtures. NOTE The direct method for the determination of polypropylene isotactic index is specified in ISO 9113.
英文名称Plastics — Polypropylene (PP) — Determination of isotactic index by low-resolution nuclear magnetic resonance spectrometry