尼龙66中水分含量检测方案

Kyoto Electronics Manufacturing Co.， Ltd.Data No.LA47-07251 No.EKCR-07273 KEM Application Note No.EKCR-07273 Coulometric Karl-Fischer Titration Moisture of N-66 polymer Summary- Checked the possibility of measuring moisture of N-66 polymer in combination of MKC-520with ADP-511S， and good repeatability was obtained. -Measuring instrument- Main unit：MKC-520 Coulometric KF moisture titrator Option： ADP-511SEvaporator Electrode：M-713 Twin platinum electrode #433-0006Inner burette -Reagent- Anolyte： Coulomat AG Catholyte：(Coulomat CG Carriergas： Nitrogen -Measurement method- Preparation： (1) Fill the titration cell with the anolyte and inner burette with the catholyte. (2) Pretitrate for dehydration. (3) Connect MKC-520 with ADP-511S and set the nitrogen flow at 200mL/min and theevaporation temperature at 200°℃. Measurement： (1) Place 1g sample in the sample boat and measure for its moisture. -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：25 ℃ R. Humidity： 61% Weather： Rain Http：//www. shxf17.com -Measurement parameter- -Printout data- 「Titration] Method 4 Titr. Cell No. 1 t(stir) 300 s t(wait) 15 s t(max) 1800 s Drift Stop ： Rel 0.01 ug/s Cont. Gain 5.0 Stable 0.1 ug/min Start ：Manual Oven ： ADP- Oven Temp200°℃ Pre Treat 2 Back Purge180 s Cell Purge 120 s [Calculation1 Clac. No. 2 Unit ：ppm Weight ：Variable Drift Comp. ： Auto 「Data Listl Samp.Interval 60 s Display ： Form2 Print Meas. Data ： On Print Graphic ： Form2 0 ug 3000 二 00：30：00 ***Res u lt* ** Sample No. 03-01 Date 07/08/31 10：38 Titr. Cell No. 1Wt1 1.0105g Net Wt2 0(g1.0105Drift 0.11ug/sResult 2925.0 yg2894.6 ppm Titr. Time ： 00：30： 15 -Measurement results- Run Sample size(g) Moisture(ug) Concentration(ppm) Statistics 123 1.0105 1.0123 0.9847 2925.02912.8 2790.2 2894.6 2878.0 2833.6 MeanSD RSD 2868.7 ppm31.538 ppm1.0994% -Comments- Compared with Karl Fisher Coulometry without a diaphragm. See the No. KCR-07272. Http：//www. shxf17. com 上海旭风科学仪器有限公司 上海市闸北区荣路 el： Fax： 周峰 zhou-fengcom