最大泡压法测定吐温-80的表面参数及亲水基分子截面积

余丹妮,谷正昊,韩永虎

Determination of Surface Parameters of Tween-80 and Cross-Sectional Area of Hydrophilic Molecules by Maximum Bubble Pressure Method

Danni Yu,Zhenghao Gu,Yonghu Han

表1 25 ℃吐温-80表面张力σ和浓度c数值

102ρ/(g·L-1) 102c/(mol·m-3) ΔP/Pa 103σ/(N·m-1) 103σ/(N·m-1) 103SD/(N·m-1) 0 0 736 – 71.97 – 728 – 731 – 0.70 1.63 730 71.81 71.61 1.00 717 70.53 737 72.49 0.80 1.87 732 72.00 70.86 1.13 720 70.82 709 69.74 1.03 2.40 678 66.69 67.94 1.28 704 69.25 690 67.87 1.10 2.57 670 65.90 67.12 1.23 695 68.36 682 67.08 1.31 3.06 621 61.08 61.31 0.96 634 62.36 615 60.49 1.41 3.29 583 57.35 56.26 1.08 572 56.26 561 55.18 1.53 3.57 610 60.00 60.00 0.98 620 60.99 600 59.02 1.70 3.97 612 60.20 60.79 0.86 614 60.49 628 61.77 1.91 4.46 616 60.59 61.44 1.08 621 61.08 637 62.66 2.07 4.83 649 63.84 64.00 1.04 641 63.05 662 65.12 2.70 6.30 672 66.10 66.20 0.26 671 66.00 676 66.49