CAJ | 학술논문

通过热重分析技术(TG-DTA)和热重红外联用分析技术(TG-FTIR)等热分析技术研究三水合乙酸铅晶体在空气气氛条件下的热分解过程.其热分解过程中主要存在二氧化碳、丙酮和乙酸等中间产物.热解过程的关键转变温度为 61.4℃、204.9℃、256.8℃、293.6℃、348.7℃.焙烧后铅粉的氧化度能够达到 95%以上,视密度比传统球磨氧化铅粉低,吸水值高于传统的球磨氧化铅粉.研究结果对于三水合乙酸铅作为前体制备铅粉提供了参考依据.
통과열중분석기술(TG-DTA)화열중홍외련용분석기술(TG-FTIR)등열분석기술연구삼수합을산연정체재공기기분조건하적열분해과정.기열분해과정중주요존재이양화탄、병동화을산등중간산물.열해과정적관건전변온도위 61.4℃、204.9℃、256.8℃、293.6℃、348.7℃.배소후연분적양화도능구체도 95%이상,시밀도비전통구마양화연분저,흡수치고우전통적구마양화연분.연구결과대우삼수합을산연작위전체제비연분제공료삼고의거.
The thermal decomposition of lead acetate trihydrate was studied with FT-IR,TG-DTA and TG-FTIR measurements in an air atmosphere. Intermediate products,i.e. CO2,acetone and acetic acid, were generated in the decomposition procedure. The key conversion temperature of decomposition was determined as 61.4℃,204.9℃,256.8℃,293.6℃and 348.7℃. The oxidizability of leady oxides could reach above 95%,while the leady oxide was with a lower apparent density and a higher water-absorption value than traditional leady products. This study has experimentally supported the further preparation of leady oxide with lead acetate trihydrate as a precursor.