Plastics - Thermoplastic polyester/ester and polyether/ester elastomers for moulding and extrusion - Part 2: Preparation of test specimen and determination of properties (ISO 20029-2:2017)
塑料 - 用于成型和挤出的热塑性聚酯/酯和聚醚/酯弹性体 - 第2部分:试样的制备和性能测定(ISO/DIS 20029-2:2015)
发布日期:
2018-02-07
实施日期:
2018-02-07
ISO 20029-2:2017规定了测试样品的制备方法和用于确定热塑性聚酯/酯和聚醚/酯弹性体成型和挤出材料性能的标准测试方法。给出了处理测试材料的要求和/或调节成型前的测试材料和测试前的样品的要求。
给出了在特定状态下制备测试样本的程序和条件,以及测量这些样本所用材料性质的程序。列出了适用于表征热塑性聚酯/酯和聚醚/酯模塑和挤出材料的性能和测试方法。
这些性能是从ISO 10350-1中的一般测试方法中选择的。其他广泛使用或对这些模塑和挤出材料特别重要的测试方法也包括在本文件中,正如ISO 20029-1(硬度,熔融温度和拉伸/弯曲模量)中规定的指定性能一样。
为了获得可再现的和可比较的测试结果,打算使用制备和调节的方法,样品尺寸和指定的测试程序在这个文件中。确定的数值不一定与使用不同尺寸的样本或使用不同的程序制备的数值相同。
ISO 20029-2:2017是在ISO 10350-1的基础上发展起来的,因为目前还没有标准来收购和提供热塑性弹性体的可比单点数据。本文件和聚氨酯类似文件(ISO 16365-2)出版后,打算根据本文件和ISO 16365,开发ISO 10350-3,以获取和提供热塑性弹性体的可比单点数据-2,作为开发热塑性弹性体材料标准的基础。
ISO 20029-2:2017 specifies the methods of preparation of test specimens and the standard test methods to be used in determining the properties of thermoplastic polyester/ester and polyether/ester elastomer moulding and extrusion materials. Requirements for handling test material and/or conditioning both the test material before moulding and the specimens before testing are given.
Procedures and conditions for the preparation of test specimens in a specified state and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize thermoplastic polyester/ester and polyether/ester moulding and extrusion materials are listed.
The properties have been selected from the general test methods in ISO 10350‑1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this document, as are the designatory properties specified in ISO 20029‑1 (hardness, melting temperature and tensile/flexural modulus).
In order to obtain reproducible and comparable test results, it is intended to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified in this document. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.
ISO 20029-2:2017 has been developed on the basis of ISO 10350‑1, as at the moment, no standard exists for the acquisition and presentation of comparable single-point data for thermoplastic elastomers. After publication of this document and the analogous document for polyurethanes (ISO 16365‑2), it is the intention to develop ISO 10350‑3 for the acquisition and presentation of comparable single-point data for thermoplastic elastomers, based on this document and ISO 16365‑2, as the basis for the development of thermoplastic-elastomer material standards.