ISO 24026-1:2020 塑料 聚甲基丙烯酸甲酯（PMMA）模塑和挤压材料 第1部分：规范的命名体系和基础
标准编号：ISO 24026-1:2020
中文名称：塑料 聚甲基丙烯酸甲酯（PMMA）模塑和挤压材料 第1部分：规范的命名体系和基础
英文名称：Plastics — Poly(methyl methacrylate) (PMMA) moulding and extrusion materials — Part 1: Designation system and basis for specifications
发布日期：2020-05
标准范围
本文件建立了聚甲基丙烯酸甲酯（PMMA）热塑性材料的命名体系，可作为规范的基础。PMMA塑料的类型通过基于适当等级的指定属性的分类系统相互区分:a） 维卡软化温度；b） 熔体质量流动速率；c） 粘度值（可选）；以及关于预期用途和/或加工方法、重要性能、添加剂和着色剂的信息。本文件适用于所有聚（甲基丙烯酸甲酯）均聚物和甲基丙烯酸甲酯（MMA）共聚物，其中MMA的质量百分比至少为80%，丙烯酸酯或其他单体的质量百分比不超过20%。本文件适用于以珠子、颗粒和颗粒形式准备正常使用的材料，以及未经着色剂、添加剂等改性或改性的材料。本文件不适用于用弹性体改性的PMMA。这并不意味着具有相同名称的材料必然具有相同的性能。本文件不提供工程数据、性能数据或加工条件数据，这些数据可能需要用于指定特定应用和/或加工方法的材料。如果需要此类附加性能，则可使用ISO 24026-2中规定的试验方法（如适用）确定。为了为特定应用指定热塑性材料或确保可重复加工，可在数据块5中给出附加要求（见4.1）。
This document establishes a system of designation for poly(methyl methacrylate) (PMMA) thermoplastic material, which can be used as the basis for specifications.The types of PMMA 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) viscosity number (optional);and on information about the intended application and/or method of processing, important properties, additives and colorants.This document is applicable to all poly(methyl methacrylate) homopolymers and to copolymers of methyl methacrylate (MMA) containing at least a mass percentage of 80 % of MMA and not more than a mass percentage of 20 % of acrylic esters or other monomers.This document applies to materials ready for normal use in the form of beads, granules and pellets and to materials unmodified or modified by colorants, additives, etc. It does not apply to PMMA modified with elastomers.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 might be required to specify a material for a particular application and/or method of processing.If such additional properties are required, they are, if suitable, determined using the test methods specified in ISO 24026-2.In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements can be given in data block 5 (see 4.1).
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