卡尔费休库仑法测定熔结环氧粉末水分含量
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摘要
通过对卡式炉温度、终点判定模式、滴定反应时间的实验分析研究,建立了卡尔费休库仑法测定熔结环氧粉末中水分含量的优化实验方法。实验条件为卡式炉温度100℃,延迟时间终止模式,滴定时间18 min。该方法适用于水分含量<0.70%的熔结环氧粉末的水分测定,精密度实验相对标准偏差为1.14%,回收率范围为93.6%~99.4%。
The measure method of the moisture content in fusion bonded epoxy powder by Karl Fischer coulometry was established based on the tube oven drying temperature,the model of titration end judgment and titration reaction time.The experimental conditions were as follows: drying temperature is 100 ℃,delay time end judgment,setting titration time is 18 min. The method is suitable for the fusion bonded epoxy powder with moisture content less than 0. 70%.The RSD of precision tests was 1. 14%.The recovery rate was 93. 6% ~ 99. 4%.
The measure method of the moisture content in fusion bonded epoxy powder by Karl Fischer coulometry was established based on the tube oven drying temperature,the model of titration end judgment and titration reaction time.The experimental conditions were as follows: drying temperature is 100 ℃,delay time end judgment,setting titration time is 18 min. The method is suitable for the fusion bonded epoxy powder with moisture content less than 0. 70%.The RSD of precision tests was 1. 14%.The recovery rate was 93. 6% ~ 99. 4%.
引文
[1]CSA Group.Z245.20 Serise-2014 plant-applied external coatings for steel pipe[S].Canada,2015:19-20.
[2]ISO.ISO 15512:2014(E)plastics-determination of water content[S].Switzerland,2014:4-9.
[3]IVANOVA P G,ANEVAZ V.Assessment and assurance of quality in water measurement by coulometric Karl Fischer titration of petroleum products[J].Accredit.Qual.Assur,2006,10(10):543-549.
[4]KRASUCKA D M,KOS K,CYBULSKI W A,et al.Karl Fisher determination of residual moisture in veterinary vaccines-practical implementation in market monitoring[J].Acta Pol.Pharm.,2012,69(6):1 364-1 367.
[5]YAN Miao-miao,YU Min,WEI Guang-cheng.Determination of moisture content in thioalcohols by Karl Fischer coulometry[J].Asian J.Chem.,2011,23(1):135-137.
[6]徐正云,陈晓莉.卡尔费休容量法测定三氟乙胺水分含量[J].化工生产与技术,2014,21(3):29-30.
[7]李丹,郭怡,王长锋.浅谈卡氏库仑法水分测定仪的原理特点及其使用注意事项[J].计量与测试技术,2012,39(10):34-36.
[8]叶佳楣,袁丽凤,王栋,等.卡式炉-卡尔费休水分仪联用测定工业用精对苯二甲酸(PTA)中水含量[J].化学试剂,2012,34(5):432-434.
[9]中华人民共和国工业和信息化部.SH/T 1770—2010聚乙烯水分含量的测定[S].北京:中国石化出版社,2011:1-2.
[10]陈鸯飞,陈智琴,肖邵懿,等.酚醛树脂热降解过程中的结构变化[J].热固性树脂,2008,23(4):4-8.
[2]ISO.ISO 15512:2014(E)plastics-determination of water content[S].Switzerland,2014:4-9.
[3]IVANOVA P G,ANEVAZ V.Assessment and assurance of quality in water measurement by coulometric Karl Fischer titration of petroleum products[J].Accredit.Qual.Assur,2006,10(10):543-549.
[4]KRASUCKA D M,KOS K,CYBULSKI W A,et al.Karl Fisher determination of residual moisture in veterinary vaccines-practical implementation in market monitoring[J].Acta Pol.Pharm.,2012,69(6):1 364-1 367.
[5]YAN Miao-miao,YU Min,WEI Guang-cheng.Determination of moisture content in thioalcohols by Karl Fischer coulometry[J].Asian J.Chem.,2011,23(1):135-137.
[6]徐正云,陈晓莉.卡尔费休容量法测定三氟乙胺水分含量[J].化工生产与技术,2014,21(3):29-30.
[7]李丹,郭怡,王长锋.浅谈卡氏库仑法水分测定仪的原理特点及其使用注意事项[J].计量与测试技术,2012,39(10):34-36.
[8]叶佳楣,袁丽凤,王栋,等.卡式炉-卡尔费休水分仪联用测定工业用精对苯二甲酸(PTA)中水含量[J].化学试剂,2012,34(5):432-434.
[9]中华人民共和国工业和信息化部.SH/T 1770—2010聚乙烯水分含量的测定[S].北京:中国石化出版社,2011:1-2.
[10]陈鸯飞,陈智琴,肖邵懿,等.酚醛树脂热降解过程中的结构变化[J].热固性树脂,2008,23(4):4-8.