1.Based on different action principle, light stabilizers were defined as ultraviolet light screening agent, ultraviolet absorbent, quencher and free radical catching agent.
根據光穩定劑作用機理的不同,將光穩定劑分為光屏蔽劑、紫外線吸收劑、激發態猝滅劑及自由基捕獲劑。
2.When the amine was used as a triplet quencher, the ketyl radical of ketocoumarin can be observed evidently.
當以胺類化合物為猝滅劑時,可以清楚地觀察到半片吶醇自由基的生成,并得到了它的瞬態吸收光譜。
3.In cooling process, when the temperature changed rapidly, the small particle would be obtained resembling the quencher.
降溫很快時,與金屬冶煉中的淬火相似,快速降溫生成小晶粒。
4.Sample A whose surface has layer structure via oxidize-deoxidize treatment and sample B which is decarbonization are put into resistance furnace for carbonization and quencher under hydrogen.
將其中試樣A通過氧化-還原處理,表面具有層狀結構,與另一脫碳試樣B一起放入改造后的電阻爐內在通氫氣的氣氛中進行滲碳淬火。