1、实验
织物：18支棉气流纱园形针织物
化学品：NOBS(P&G公司)
TBCC(按文献15合成)
润湿剂Kieralcnjer B conc(BASF)
稳定剂Prestogen N-D(BASF)
实验：按中心组合设计，取3因子与5水平，具体安排如表11所示
表11 实验设计的代码与水平
| 因子符号 | 因子 | 代码及水平 | ||||
| -1.68 | -1 | 0 | +1 | +1.68 | ||
| Xl | 温度(℃) | 60 | 70 | 85 | 100 | 110 |
| X2 | NaOH(25%)(g/L) | 0.05 | 0.90 | 2.15 | 3.40 | 4.25 |
| X3 | 活化剂(mmol/L) | 0.15 | 2.40 | 5.70 | 9. 00 | 11.25 |
注:漂白液中含润湿剂lg-L,H2O2 (35%W-W)
二种活化剂(TBCC-NOBS)各进行18次试验，试样白度测定结果如表12所示
表12 实验安排所测得的白度值
| 白度值(WI) | |||||
| N0 | Xl | X2 | X3 | TBCC | NOBS |
| 1 | -l | -1 | -1 | 50.36 | 47.23 |
| 2 | +1 | -1 | -1 | 64.10 | 64.20 |
| 3 | -1 | +1 | -1 | 59.16 | 57.33 |
| 4 | +1 | +1 | -1 | 75.65 | 75.69 |
| 5 | -l | -1 | +1 | 58.19 | 43.05 |
| 6 | +l | -1 | +1 | 63.43 | 55.75 |
| 7 | -1 | +1 | +1 | 65.45 | 58.53 |
| 8 | +1 | +1 | +1 | 77.32 | 72.15 |
| 9 | -1.68 | 0 | 0 | 57.55 | 50.85 |
| 10 | +1.68 | 0 | 0 | 77.49 | 73.65 |
| 11 | 0 | -1.68 | 0 | 49.83 | 49.64 |
| 12 | 0 | +1.68 | 0 | 70.70 | 67.44 |
| 13 | 0 | 0 | -1.68 | 60.95 | 61.77 |
| 14 | 0 | 0 | +1.68 | 68.35 | 59.10 |
| 15 | 0 | 0 | 0 | 66.68 | 64.65 |
| 16 | 0 | 0 | 0 | 65.92 | 63.39 |
| 17 | 0 | 0 | 0 | 66.39 | 64.49 |
| 18 | 0 | 0 | 0 | 65.69 | 63.21 |
2、试验的结果与讨论
经用Stat-Ease的Design-ExpetRV.
表 12 方差分析后各项的作用和显著性
| Model terms | TBCC | NOBS | ||||
| 评估系数 | 概率值 | 评估系数 | 概率值 | |||
| X1 | 5.92 | ＜0.0001 | 7.34 | ＜0.0001 | ||
| X2 | | ＜0.0001 | < .12 | ＜0.0001 | ||
| X3 | 2.02 | ＜0.0001 | -1.44 | 0.0052 | ||
| X12 | 0.52 | 0.0573 | -0.80 | 0.00824 | ||
| X22 | -2.05 | ＜0.0001 | -2.11 | 0.0006 | ||
| X32 | -0.50 | 0.0658 | -1.44 | 0.0064 | ||
| X1X2 | 1.17 | 0.0035 | ||||
| X1X3 | -1.64 | 0.0004 | -1.15 | 0.0514 | ||
| X2X3 | 1.26 | 0.0361 |
注:NOBS的 X1X2及TBCC的X2X3由于概率值大于0.1(相应为 0.5718及0.7588)己被删去。
通过相关运算证明，下列予报白度值的二个二次方程式 (16)(17)是可靠的。
CIEWITBCC=23.9196+0.0583X1+4.6067X2+3.9484X3+0.0023X12-1.3105X22-0.0457X12+0.0625X1X2-0.0331X1X3 (17)
(R2=0.9940)
CIEWlNOBS=29.2703+1.2236X1+8.9570X2+2.3890X3-0.0035X12-1.3494X22-0.1321X32-0.0233XlX3+0.3058X2X3 (18)
(R2=0.9864)
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