标准摘要
[中文适用范围]： 本文件建立了聚酮（PK）模塑和挤出材料的命名系统，可用作规范的基础。 聚酮聚合物链由规则交替的烯属单元和酮基构成。 烯属单元应为随机分布的乙烯和丙烯。 聚酮塑料的类型通过分类系统相互区分，该分类系统基于适当的指定性能水平、熔融温度、熔体质量流量、负载变形温度以及有关预期应用和/或加工方法的信息、重要特性、添加剂、颜色、填料和增强材料。 该命名系统适用于所有聚酮三元共聚物和共混物。 它适用于正常使用的粉末、颗粒或丸状材料，未经改性或经着色剂、填料或其他添加剂改性。 这并不意味着具有相同名称的材料必然具有相同的性能。 本文件不提供指定材料可能需要的工程数据、性能数据或加工条件数据。 如果需要此类附加属性，则应根据 ISO 21970-2 中规定的测试方法（如果适用）来确定。 为了指定聚酮以满足特定规格，数据块 5 中给出了要求（见 4.1）。 [外文原描述]： This document establishes a system of designation for polyketone (PK) moulding and extrusion materials which may be used as the basis for specifications. Polyketone polymer chains are built up from regularly alternating olefinic units and keto groups. The olefinic units shall be randomly distributed ethylene and propylene. The types of polyketone plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties, melting temperature, melt mass-flow rate, temperature of deflection under load and on information about the intended application and/or method of processing, important properties, additives, colour, fillers and reinforcing materials. The designation system is applicable to all polyketone terpolymers and blends. It applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colourants, fillers or other additives. It is not intended to imply that materials having the same designation give necessarily the same performance. This document does not provide engineering data, performance data or data on processing conditions which may be required to specify a material. If such additional properties are required, they are intended to be determined in accordance with the test methods specified in ISO 21970-2, if suitable. In order to designate a polyketone to meet particular specifications, the requirements are to be given in data block 5 (see 4.1).
英文名称Plastics — Polyketone (PK) moulding and extrusion materials — Part 1: Designation system and basis for specifications