聚乙烯(PE)中水分含量检测方案

智能文字提取功能测试中

Kyoto Electronics Manufacturing Co.， Ltd.Data No.LN47-09328 No.EKCI-99352电话：021-54488867 电邮： kemu-kem@163.com1网址： http：//www.kem-china.com KEM Application Note No. EKCI-09352 Coulometric Karl-Fischer Titration Moisture of Polyethylene pellet -Summary- Checked the possibility of measuring moisture of Polyethylene pellet in combination ofMKC-520N with ADP-511S，and good result was obtained. -Measuring instrument- Main unit：MKC-520 Coulometric KF moisture titrator Option： ADP-511S Evaporator Electrode： M-713 Twin platinum electrode #433-0006 Inner burette -Reagent- Anolyte： Coulomat AG Catholyte：Coulomat CG Carrier gas： Nitrogen -Measurement method- Preparation： (1) Fill the titration cell with the anolyte and the inner burette with the catholyte. (2) Pretitrate for dehydration. (3) Connect MKC-520 with ADP-511S and set the evaporation temperature at 180C. Measurement： (1) Place 1.5g dried sample in the sample boat for the measurement. -Equation- Moisture (ppm)： ((Data-Driftxt-Blank)/(Wt1-Wt2))xF Data： Measured water content (ug) Drift ： Drift before measurement (ug/s) t ： Measuring time(s) Blank ： Blank value(ug) Wt1 ： Tare including sample weight (g) Wt2 ： Tare including residual weight (g) F： Factor(1.00) .Standard method- Karl Fischer method -Ambient conditions- Temperature： 23.5°℃ R.Humidity： 68% Weather： Cloudy 京都电子工业株株会社-可睦电子(上海)商贸有限公司_上海市徐汇区中山西路2366弄1号203室 电话：021-54488867 电邮： kemu-kem@163.com网址： http：//www.kem-china.com -Measurement parameter- -Printout data- Drift Stop ：： Rel 0.01 ug/s 0 Ug 200 00：30：00 * * *Result** Sample No. 01-01 Date 2009/09/21113：04 Wt1 Wt2 Net Titr. Cell No. 11.5035g0.0g1.5035g Drift Result 0.11ug/s141.5ug 94.114ppm Titr. Time ： 00： 30： 15 Cont. Gain 5.0 Stable 0.1 ug/min Start ：Manual Oven ： ADP- Oven Temp 180°℃ Pre Treat 2 Back Purge 180s Cell Purge 120 s [Calculation] Clac. No. 2 Unit ：ppm Weight ：Variable Drift Comp. ： Auto [Data Lis t] Data Samp. Time 60 s Data List ： On Graphic Form ： Form2 -Measurement results- Run Sample size(g) Moisture(ug) Concentration(ppm) 1 1.5035 141.5 94.114 Comments- Care should be taken for treating the sample because it is high in moisture absorbency.