GB/Z 28820.1-2012
聚合物長期輻射老化.第1部分：監(jiān)測擴(kuò)散限制氧化的技術(shù)

Long-term radiation ageing in polymers.Part 1:Techniques for monitoring diffusion-limited oxidation

適用范圍: 當(dāng)有和氧存在時(shí),聚合物在包括溫度.輻射或者紫外線的各種環(huán)境中老化,受擴(kuò)散限制氧化的影響,導(dǎo)致非均相老化。這些影響使得理解老化過程和推斷加速長期的暴露條件變得很困難。本部分回顧定量監(jiān)控這些影響的實(shí)驗(yàn)技術(shù),并且對評估重要性提供了理論方程式。 2 監(jiān)測擴(kuò)散限制氧化的剖析技術(shù)

術(shù)語	描述
擴(kuò)散限制氧化 Diffusion-limited Oxidation	Oxygen consumption rate is greater than the rate at which oxygen can be supplied by diffusion from the surrounding medium.
模量剖析技術(shù) Modulus Profiling Technique	A technique used to measure the spatial variation of material modulus due to oxidation.

傅里葉紅外光譜儀 (FTIR) 用于超薄切片分析	Used for monitoring chemical changes in thin slices via infrared spectroscopy.
射線微量分析儀 (XMA) 配備電子探針	Analyzes potassium distribution in oxidized materials using X-ray microanalysis.