塑料.耐冲击聚苯乙烯(PS-I)模塑和挤塑材料.第1部分:命名系统和基本规范

[中文适用范围]： ISO 19063-1 建立了耐冲击聚苯乙烯 (PS-I) 模塑和挤出材料的标识系统，可作为规范的依据。该标准适用于具有两相聚合物体系的耐冲击聚苯乙烯塑料，其连续相由聚苯乙烯和/或苯乙烯与烷基取代苯乙烯的共聚物组成，分散相为基于丁二烯的弹性体相。适用于成品材料，可未改性或经着色剂、添加剂、填料等改性。本标准不适用于发泡材料。它不适用于推导具有相同标识的材料必然具有相同性能，也不提供工程数据、性能数据或加工条件数据。如需其他性能，应依据 ISO 2897-2 中规定的测试方法进行测定。 [外文原描述]： ISO 19063-1:2015 establishes a system of designation for impact-resistant polystyrene (PS-I) moulding and extrusion materials, which may be used as the basis for specifications. The types of impact-resistant polystyrene plastic are differentiated from each other by a classification system based on appropriate levels of the designatory properties: a) Vicat softening temperature; b) melt mass-flow rate; c) Charpy notched impact strength; d) flexural modulus; and on information about composition, intended application and/or method of processing, important properties, additives, colorants, fillers, and reinforcing materials. This part of ISO 19063 is applicable to all impact-resistant polystyrene plastics with a two-phase polymer system comprised of a continuous phase, consisting of polystyrene and/or a copolymer of styrene with an alkyl-substituted styrene, and a dispersed elastomeric phase based on butadiene. It applies to materials ready for normal use, unmodified or modified by colorants, additives, fillers, etc. ISO 19063-1:2015 does not apply to expandable materials. It is not intended to imply that materials having the same designation give necessarily the same performance. This part of ISO 19063 does not provide engineering data, performance data, or data on processing conditions which may be required to specify a material for a particular application and/or method of processing. If such additional properties are required, they will be determined in accordance with the test methods specified in ISO 2897‑2, if suitable. In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements may be given in data block 5 (see 3.1).