标准摘要
[中文适用范围]： 本文件规定了两种评估半结晶聚合物熔融行为的方法。 a) 方法A：毛细管 该方法基于聚合物形状的变化。 它适用于所有半结晶聚合物及其化合物。 注 1：方法 A 也可用于评估非结晶固体的软化。 b) 方法B：偏光显微镜 该方法基于聚合物光学性质的变化。 它适用于含有双折射结晶相的聚合物。 它可能不适用于含有颜料和/或其他可能干扰聚合物结晶区双折射的添加剂的塑料化合物。 注 2：ISO 11357-3 中描述了另一种适用于半结晶聚合物的方法。 [外文原描述]： This document specifies two methods for evaluating the melting behaviour of semi-crystalline polymers. a) Method A: Capillary tube This method is based on the changes in shape of the polymer. It is applicable to all semi-crystalline polymers and their compounds. NOTE 1 Method A can also be useful for the evaluation of the softening of non-crystalline solids. b) Method B: Polarizing microscope This method is based on changes in the optical properties of the polymer. It is applicable to polymers containing a birefringent crystalline phase. It might not be suitable for plastics compounds containing pigments and/or other additives which can interfere with the birefringence of the polymeric crystalline zone. NOTE 2 Another method applicable to semi-crystalline polymers is described in ISO 11357‑3.
英文名称Plastics — Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods