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Updated: Jul 1, 2025

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在高压下通过纯气体丰富的聚合物中测量气体吸收和扩散性的开发方法的审查

¹Hydrogen Energy Group, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea.

|March 13, 2024

概括

四种新方法准确地测量了聚合物中的气体扩散,以确保基础设施的安全. 这些技术评估O环材料性能,确保可靠的密封和工业应用中的气体监测.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
聚合物科学聚合物科学

背景情况:

聚合物中的气体透对于工业安全和监测至关重要.
调查O环材料的气体透是基础设施密封的关键.
了解气体传输特性对于高压应用至关重要.

研究的目的:

开发和验证四种互补的方法来测量聚合物中的气体吸收和扩散性.
评估用于密封应用的O环材料的气体透特性.
为了比较开发的方法的原则,程序,结果和特征.

主要方法:

重力测量方法 (基于质量的)
卷度法 (基于体积的)
人力测量方法 (基于压力)
气相色谱 (以体积为基础)

主要成果:

使用开发的方法来证明气体吸收,溶解度和扩散度的测量.
对四种方法的原则,程序和结果进行比较分析.
验证评估和O环材料运输性能的方法.

结论:

开发的方法为测量聚合物中的气体传输特性提供了有效的手段.
这些技术适用于在高压下评估O环材料的密封和泄漏能力.
这些方法支持加油站和天然气行业的安全性和可靠性要求.

关键词:

扩散性扩散性扩散性气相色谱是一种气相色谱.气体吸收气体吸收气体吸收重力测量方法的重力测量方法.通过手表测量方法进行测量.验证验证的时间通过体积测量方法.

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相关概念视频

Polymers: Molecular Weight Distribution

Polymers: Molecular Weight Distribution

For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.