GB/T 44307-2024 碳纤维增强塑料 纤维质量含量的测定 热重分析法(TG)

ICS

59.100.20

CCS

Q53

中华人民共和国国家标准

GB/T44307—2024/ISO22821:2021

碳纤维增强塑料

纤维质量含量的测定

热重分析法（TG）

Carbon-fibre-reinforcedcomposites—

Determinationoffibreweightcontent—

Thermogravimetry(TG)

[ISO22821:2021，Carbon-fibre-reinforcedcomposites—

Determinationoffibreweightcontentbythermogravimetry(TG)，IDT]

2024-08-23发布2025-03-01实施

国家市场监督管理总局发布

国家标准化管理委员会

GB/T44307—2024/ISO22821:2021

目次

前言

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Ⅲ

1

范围

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规范性引用文件

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3

术语和定义

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原理

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试剂

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仪器﹘热重分析仪

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试样

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试验步骤

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结果计算和表示

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精密度

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试验报告

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附录A（资料性）热重示例图

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附录B（资料性）精度─可重复性

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参考文献

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Ⅰ

GB/T44307—2024/ISO22821:2021

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规定

起草。

本文件等同采用ISO22821:2021《碳纤维增强塑料用热重分析法（TG）测定纤维质量含量》。

本文件做了下列编辑性改动：

—为与现有标准协调，将标准名称改为《碳纤维增强塑料纤维质量含量的测定热重分析

法（TG）》。

请注意本文件的某些内容有可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由全国碳纤维标准化技术委员会（SAC/TC572）提出并归口。

本文件起草单位：南京玻璃纤维研究设计院有限公司、中复神鹰碳纤维股份有限公司、江苏恒神股

份有限公司、中国石化上海石油化工股份有限公司、常州达姆斯检测技术有限公司、上海飞机制造有限

公司、吉林化纤集团有限责任公司、江苏亨博复合材料有限公司、上海中镭新材料科技有限公司。

本文件主要起草人：时慧娴、李骏光、汤志强、金亮、胡玮、韩风、袁宇慧、王玉梅、张涵佳、

徐琪、孙攀、刘春艳、宋楠、郑佩琪。

Ⅲ

GB/T44307—2024/ISO22821:2021

碳纤维增强塑料

纤维质量含量的测定

热重分析法（TG）

1范围

本文件描述了一种用热重分析法测定碳纤维增强复合材料纤维质量含量的方法。

本文件适用于碳纤维预浸料和碳纤维增强塑料。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用

于本文件。

ISO291塑料

试样状态调节和试验的标准环境（Plastics—Standardatmospheres

for

condition﹘

ingandtesting）

注：GB/T2918—2018塑料试样状态调节和试验的标准环境（ISO291:2008，MOD）

3术语和定义

下列术语和定义适用于本文件。

3.1

纤维质量含量fibreweightcontent

Wf

纤维复合材料中纤维质量与总质量之比。

注：也称纤维含量，以百分比表示。

4原理

在已知气体环境中，按照预设程序对称重的试样进行加热。

先将试样在惰性气体环境（氮气）中进行初始热解，然后在氧化性气体中燃烧。

一般来说，产生质量变化的反应有分解、氧化或反应挥发等。

绘制质量损失与温度的热重函数关系图，对预浸料或复合材料的碳纤维含量进行定量分析。

5试剂

5.1氮气

纯度不低于99.995%（质量分数），氧含量小于10mg/kg（ppm），烃含量小于1.5mg/kg（ppm）。

1