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中国塑料 ›› 2022, Vol. 36 ›› Issue (11): 14-23.DOI: 10.19491/j.issn.1001-9278.2022.11.003
收稿日期:
2022-07-31
出版日期:
2022-11-26
发布日期:
2022-11-25
通讯作者:
方健(1978—),女,副教授,从事功能性包装材料研究,fj515@sina.com基金资助:
YANG Xu, FANG Jian(), QIN Min, YU Lei
Received:
2022-07-31
Online:
2022-11-26
Published:
2022-11-25
Contact:
FANG Jian
E-mail:fj515@sina.com
摘要:
以壳聚糖(CS)和结冷胶(GG)为原料,采用溶液流延法并结合层层自组装技术制备了CS/GG双层膜,通过单因素和响应面试验优化制备工艺条件,并对双层膜的微观形貌、化学结构、力学性能、光学性能、阻水性能和抗氧化性能进行评价。结果表明,CS质量分数1.7 %、GG质量分数1.5 %、CS与GG成膜液体积比4/6、甘油质量分数25 %条件下双层膜的拉伸强度为38.83 MPa、透湿量为750.76 g/(m2·d);与单层膜相比,CS/GG双层膜表面光滑、截面致密,红外光谱分析结果表明双层膜具有良好的相容性;双层膜可以有效改善纯CS膜、纯GG膜的力学性能和阻水性能。
中图分类号:
杨旭, 方健, 覃敏, 于雷. 壳聚糖/结冷胶双层膜制备工艺优化及表征[J]. 中国塑料, 2022, 36(11): 14-23.
YANG Xu, FANG Jian, QIN Min, YU Lei. Preparation process optimization and characterization of chitosan/gellan gum bilayer films[J]. China Plastics, 2022, 36(11): 14-23.
水平 | 因素 | ||
---|---|---|---|
X1/% | X2/% | X3/% | |
-1 | 1.50 | 1.00 | 25 |
0 | 1.75 | 1.25 | 30 |
1 | 2.00 | 1.50 | 35 |
水平 | 因素 | ||
---|---|---|---|
X1/% | X2/% | X3/% | |
-1 | 1.50 | 1.00 | 25 |
0 | 1.75 | 1.25 | 30 |
1 | 2.00 | 1.50 | 35 |
试验编号 | X1/% | X2/% | X3/% | Y1/MPa | Y2/g·m-2·d-1 |
---|---|---|---|---|---|
1 | 1.75 | 1.25 | 30 | 35.85 | 814.54 |
2 | 1.75 | 1.5 | 25 | 38.46 | 776.05 |
3 | 1.50 | 1.00 | 30 | 37.61 | 833.77 |
4 | 1.50 | 1.25 | 25 | 35.56 | 798.10 |
5 | 2.00 | 1.25 | 35 | 28.10 | 862.83 |
6 | 1.75 | 1.50 | 35 | 33.02 | 762.62 |
7 | 1.50 | 1.5 | 30 | 37.69 | 795.83 |
8 | 1.75 | 1.25 | 30 | 35.00 | 810.18 |
9 | 1.75 | 1.25 | 30 | 35.19 | 819.05 |
10 | 1.75 | 1.25 | 30 | 35.20 | 809.05 |
11 | 2.00 | 1.50 | 30 | 35.20 | 844.72 |
12 | 1.75 | 1.00 | 25 | 36.10 | 773.35 |
13 | 2.00 | 1.00 | 30 | 32.78 | 866.42 |
14 | 2.00 | 1.25 | 25 | 39.19 | 840.18 |
15 | 1.50 | 1.25 | 35 | 38.38 | 830.76 |
16 | 1.75 | 1.25 | 30 | 36.06 | 799.61 |
17 | 1.75 | 1.00 | 35 | 33.35 | 828.49 |
试验编号 | X1/% | X2/% | X3/% | Y1/MPa | Y2/g·m-2·d-1 |
---|---|---|---|---|---|
1 | 1.75 | 1.25 | 30 | 35.85 | 814.54 |
2 | 1.75 | 1.5 | 25 | 38.46 | 776.05 |
3 | 1.50 | 1.00 | 30 | 37.61 | 833.77 |
4 | 1.50 | 1.25 | 25 | 35.56 | 798.10 |
5 | 2.00 | 1.25 | 35 | 28.10 | 862.83 |
6 | 1.75 | 1.50 | 35 | 33.02 | 762.62 |
7 | 1.50 | 1.5 | 30 | 37.69 | 795.83 |
8 | 1.75 | 1.25 | 30 | 35.00 | 810.18 |
9 | 1.75 | 1.25 | 30 | 35.19 | 819.05 |
10 | 1.75 | 1.25 | 30 | 35.20 | 809.05 |
11 | 2.00 | 1.50 | 30 | 35.20 | 844.72 |
12 | 1.75 | 1.00 | 25 | 36.10 | 773.35 |
13 | 2.00 | 1.00 | 30 | 32.78 | 866.42 |
14 | 2.00 | 1.25 | 25 | 39.19 | 840.18 |
15 | 1.50 | 1.25 | 35 | 38.38 | 830.76 |
16 | 1.75 | 1.25 | 30 | 36.06 | 799.61 |
17 | 1.75 | 1.00 | 35 | 33.35 | 828.49 |
来源 | 拉伸强度 | 透湿量 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
平方和 | 自由度 | 均方 | F值 | P值a | 平方和 | 自由度 | 均方 | F值 | P值 | |
模型 | 113.22 | 9 | 12.58 | 93.37 | <0.000 1 | 13 944.12 | 9 | 1 549.35 | 44.87 | <0.000 1 |
X1 | 24.43 | 1 | 24.43 | 181.31 | <0.000 1 | 3 029.92 | 1 | 3 029.92 | 87.74 | <0.000 1 |
X2 | 2.57 | 1 | 2.57 | 19.05 | 0.003 3 | 1 885.29 | 1 | 1 885.29 | 54.60 | 0.000 2 |
X3 | 33.87 | 1 | 33.87 | 251.41 | <0.000 1 | 1 176.61 | 1 | 1 176.61 | 34.07 | 0.000 6 |
X1X2 | 1.37 | 1 | 1.37 | 10.18 | 0.015 3 | 65.93 | 1 | 65.93 | 1.91 | 0.209 5 |
X1X3 | 48.34 | 1 | 48.34 | 358.79 | <0.000 1 | 25.05 | 1 | 25.05 | 0.73 | 0.422 6 |
X2X3 | 1.82 | 1 | 1.82 | 13.49 | 0.007 9 | 1 175.46 | 1 | 1 175.46 | 34.04 | 0.000 6 |
X12 | 0.202 8 | 1 | 0.202 8 | 1.50 | 0.259 6 | 5 538.85 | 1 | 5 538.85 | 160.40 | <0.000 1 |
X22 | 0.084 8 | 1 | 0.084 8 | 0.62 | 0.453 5 | 563.69 | 1 | 563.69 | 16.32 | 0.004 9 |
X32 | 0.573 5 | 1 | 0.573 5 | 4.26 | 0.078 0 | 800.46 | 1 | 800.46 | 23.18 | 0.001 9 |
残差 | 0.943 2 | 7 | 0.134 7 | — | — | 241.72 | 7 | 34.53 | — | — |
失拟项 | 0.085 7 | 3 | 0.028 6 | 0.133 3 | 0.935 2 | 31.50 | 3 | 10.50 | 0.199 8 | 0.891 6 |
纯误差 | 0.857 5 | 4 | 0.214 4 | — | — | 210.22 | 4 | 52.56 | — | — |
总离差 | 114.17 | 16 | — | — | — | 14 185.85 | 16 | — | — | — |
变化系数 | 1.04 | 0.720 5 | ||||||||
决定系数 | 0.991 7 | 0.983 0 | ||||||||
矫正决定系数 | 0.981 1 | 0.961 1 | ||||||||
精密度 | 39.315 4 | 22.448 7 |
来源 | 拉伸强度 | 透湿量 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
平方和 | 自由度 | 均方 | F值 | P值a | 平方和 | 自由度 | 均方 | F值 | P值 | |
模型 | 113.22 | 9 | 12.58 | 93.37 | <0.000 1 | 13 944.12 | 9 | 1 549.35 | 44.87 | <0.000 1 |
X1 | 24.43 | 1 | 24.43 | 181.31 | <0.000 1 | 3 029.92 | 1 | 3 029.92 | 87.74 | <0.000 1 |
X2 | 2.57 | 1 | 2.57 | 19.05 | 0.003 3 | 1 885.29 | 1 | 1 885.29 | 54.60 | 0.000 2 |
X3 | 33.87 | 1 | 33.87 | 251.41 | <0.000 1 | 1 176.61 | 1 | 1 176.61 | 34.07 | 0.000 6 |
X1X2 | 1.37 | 1 | 1.37 | 10.18 | 0.015 3 | 65.93 | 1 | 65.93 | 1.91 | 0.209 5 |
X1X3 | 48.34 | 1 | 48.34 | 358.79 | <0.000 1 | 25.05 | 1 | 25.05 | 0.73 | 0.422 6 |
X2X3 | 1.82 | 1 | 1.82 | 13.49 | 0.007 9 | 1 175.46 | 1 | 1 175.46 | 34.04 | 0.000 6 |
X12 | 0.202 8 | 1 | 0.202 8 | 1.50 | 0.259 6 | 5 538.85 | 1 | 5 538.85 | 160.40 | <0.000 1 |
X22 | 0.084 8 | 1 | 0.084 8 | 0.62 | 0.453 5 | 563.69 | 1 | 563.69 | 16.32 | 0.004 9 |
X32 | 0.573 5 | 1 | 0.573 5 | 4.26 | 0.078 0 | 800.46 | 1 | 800.46 | 23.18 | 0.001 9 |
残差 | 0.943 2 | 7 | 0.134 7 | — | — | 241.72 | 7 | 34.53 | — | — |
失拟项 | 0.085 7 | 3 | 0.028 6 | 0.133 3 | 0.935 2 | 31.50 | 3 | 10.50 | 0.199 8 | 0.891 6 |
纯误差 | 0.857 5 | 4 | 0.214 4 | — | — | 210.22 | 4 | 52.56 | — | — |
总离差 | 114.17 | 16 | — | — | — | 14 185.85 | 16 | — | — | — |
变化系数 | 1.04 | 0.720 5 | ||||||||
决定系数 | 0.991 7 | 0.983 0 | ||||||||
矫正决定系数 | 0.981 1 | 0.961 1 | ||||||||
精密度 | 39.315 4 | 22.448 7 |
物理性能 | CS膜 | GG膜 | 双层膜 |
---|---|---|---|
L | 105.03±0.28a | 107.26±1.61a | 103.95±1.13b |
a | -4.25±0.02c | -2.39±0.03a | -3.10±0.04b |
b | 7.84±0.54a | -6.16±0.61c | -2.36±0.24b |
ΔE | 16.35±0.13a | 15.25±1.56a | 11.56±1.11b |
不透明度/A·mm-1 | 0.94±0.08b | 1.50±0.32a | 1.18±0.03a |
厚度/mm | 0.064±0.003b | 0.071±0.001a | 0.063±0.002b |
拉伸强度/MPa | 33.40±1.17b | 19.06±1.08c | 38.83±1.10a |
断裂伸长率/% | 8.33±1.62a | 2.35±0.37c | 5.03±0.59b |
透湿量/g·m-2·d-1 | 810.37±11.95b | 817.92±12.14b | 750.76±6.43a |
含水量/% | 14.81±0.34a | 12.08±0.59b | 9.17±0.53c |
溶解度/% | 20.99±1.75a | 21.23±1.19a | 15.87±0.79b |
物理性能 | CS膜 | GG膜 | 双层膜 |
---|---|---|---|
L | 105.03±0.28a | 107.26±1.61a | 103.95±1.13b |
a | -4.25±0.02c | -2.39±0.03a | -3.10±0.04b |
b | 7.84±0.54a | -6.16±0.61c | -2.36±0.24b |
ΔE | 16.35±0.13a | 15.25±1.56a | 11.56±1.11b |
不透明度/A·mm-1 | 0.94±0.08b | 1.50±0.32a | 1.18±0.03a |
厚度/mm | 0.064±0.003b | 0.071±0.001a | 0.063±0.002b |
拉伸强度/MPa | 33.40±1.17b | 19.06±1.08c | 38.83±1.10a |
断裂伸长率/% | 8.33±1.62a | 2.35±0.37c | 5.03±0.59b |
透湿量/g·m-2·d-1 | 810.37±11.95b | 817.92±12.14b | 750.76±6.43a |
含水量/% | 14.81±0.34a | 12.08±0.59b | 9.17±0.53c |
溶解度/% | 20.99±1.75a | 21.23±1.19a | 15.87±0.79b |
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