ISO 11358-1:2022 高分子塑料 热重量分析法（TG） 第1部分：一般原则

标准编号：ISO 11358-1:2022

中文名称：高分子塑料 热重量分析法（TG） 第1部分：一般原则

英文名称：Plastics — Thermogravimetry (TG) of polymers — Part 1: General principles

发布日期：2022-03

标准范围

本文件规定了使用热重分析技术分析聚合物的一般条件。它适用于液体或固体。固体材料可以是颗粒、颗粒或粉末。也可以通过该方法分析减小到适当试样尺寸的制造形状。本文件建立了与质量变化相关的物理效应和化学反应的调查方法。本文件可用于确定聚合物分解的温度和速率，同时测量其所含挥发物、添加剂和/或填料的量。本文件适用于动态模式（质量变化与温度或编程温度条件下的时间）或等温模式（质量变化与恒温下的时间）下的测量。本文件适用于不同测试环境下的测量，例如惰性环境中的分解与氧化降解的分离。

This document specifies general conditions for the analysis of polymers using thermogravimetric techniques. It is applicable to liquids or solids. Solid materials can be in the form of pellets, granules or powders. Fabricated shapes reduced to appropriate specimen size can also be analysed by this method.This document establishes methods for the investigation of physical effects and chemical reactions that are associated with changes of mass.This document can be used to determine the temperature(s) and rate(s) of decomposition of polymers, and to measure at the same time the amounts of volatile matter, additives and/or fillers they contain.This document is applicable to measurements in dynamic mode (mass change versus temperature or time under programmed temperature conditions) or isothermal mode (mass change versus time at constant temperature).This document is applicable to measurements at different testing atmospheres, such as separation of decomposition in an inert atmosphere from oxidative degradation.

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