Preparation of Antibacterial Nanosilver Solution Microcapsules and Their Impact on the Performance of Andoung Wood Surface Coating
Abstract
:1. Introduction
2. Materials and Methods
2.1. Test Materials
2.2. Experimental Method
2.2.1. Preparation of UF @ Nanosilver Solution Microcapsules
2.2.2. Preparation of Antibacterial Coating Film
2.3. Testing and Characterization
2.3.1. Characterization of Microcapsules
2.3.2. Performance Characterization of Antibacterial Coating Film
2.3.3. Characterization of Antibacterial Property of Paint Film
3. Results and Discussion
3.1. Analysis of Orthogonal Experimental Results of UF @ Nanosilver Solution Microcapsules
3.1.1. Analysis of the Output and Coverage Rate of Microcapsules
3.1.2. Micromorphology Analysis of Microcapsules
3.2. Effect of Emulsifier HLB Value on Coating Film Properties
3.2.1. Effect of the Emulsifier’s HLB Value on the Coating Film’s Optical Characteristics
3.2.2. Effect of Emulsifier HLB Value on Paint Film’s Mechanical Qualities
3.3. Influence of the Emulsifier’s HLB Value on the Coated Film’s Antibacterial Properties
3.4. Analysis of the Micromorphology and Chemical Composition of Antibacterial Microcapsules with Varying Emulsifier HLB Values
3.5. Analysis of the Coating’s Micromorphology and Chemical Composition before and after Antibiosis
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Conflicts of Interest
References
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Materials | Specification/Size | Manufacturer |
---|---|---|
Urea | analytically pure | Tianjin Dengfeng Chemical Factory, Tianjin, China |
37.0% formaldehyde | analytically pure | Nantong Yaoxin Chemical Co., Ltd., Nantong, China |
Triethanolamine | analytically pure | Shaanxi Panlong Yihai Pharmaceutical Co., Ltd., Xi’an, China |
Nanosilver solution | analytically pure | Tianjin Beichen Founder Reagent Factory, Tianjin, China |
Span-80 | analytically pure | Wuxi Yatai United Chemical Co., Ltd., Wuxi, China |
Tween-80 | analytically pure | Wuxi Yatai United Chemical Co., Ltd., Wuxi, China |
Citric acid monohydrate | analytically pure | Nanjing Quanlong Biotechnology Co., Ltd., Nanjing, China |
Absolute ethanol | analytically pure | Guangzhou Kema Chemical Technology Co., Ltd., Guangzhou, China |
Waterborne paint | analytically pure | Akzo Nobel Paint Co., Ltd., Guangzhou, China |
Escherichia coli | - | Beijing Conservation Biotechnology Co., Ltd., Beijing, China |
Staphylococcus aureus | - | Beijing Conservation Biotechnology Co., Ltd., Beijing, China |
Nutrient broth | - | Hangzhou Chicheng Pharmaceutical Technology Co., Ltd., Hangzhou, China |
Eluent | - | Sichuan Kelun Pharmaceutical Co., Ltd., Chengdu, China |
Nutrient agar medium | - | Guangdong huankai Microbial Technology Co., Ltd., Guangzhou, China |
Level | Wcore: Wwall | HLB Value of Emulsifier | Wcore: Wemulsion | Rotational Speed (rpm) |
---|---|---|---|---|
1 | 0.8:1 | 3.65 | 1:4 | 600 |
2 | 0.9:1 | 4.51 | 1:5 | 800 |
3 | 1:1 | 5.37 | 1:6 | 1000 |
Sample (#) | Urea (g) | 37% Formaldehyde (g) | Deionized Water (g) | Nanosilver Solution (g) | Span-80 (g) | Tween-80 (g) | Anhydrous Ethanol (g) | Rotational Speed (rpm) |
---|---|---|---|---|---|---|---|---|
1 | 7.0 | 9.5 | 35.0 | 8.4 | 0.5 | 0.1 | 33.0 | 600 |
2 | 7.0 | 9.5 | 35.0 | 8.4 | 0.7 | 0.1 | 41.2 | 800 |
3 | 7.0 | 9.5 | 35.0 | 8.4 | 0.9 | 0.1 | 49.4 | 1000 |
4 | 7.0 | 9.5 | 35.0 | 9.5 | 0.7 | 0.1 | 37.0 | 1000 |
5 | 7.0 | 9.5 | 35.0 | 9.5 | 0.9 | 0.1 | 49.3 | 600 |
6 | 7.0 | 9.5 | 35.0 | 9.5 | 0.5 | 0.1 | 56.1 | 800 |
7 | 7.0 | 9.5 | 35.0 | 10.5 | 0.9 | 0.1 | 41.0 | 800 |
8 | 7.0 | 9.5 | 35.0 | 10.5 | 0.5 | 0.1 | 51.9 | 1000 |
9 | 7.0 | 9.5 | 35.0 | 10.5 | 0.7 | 0.1 | 62.2 | 600 |
Sample (#) | Urea (g) | 37% Formaldehyde (g) | Deionized Water (g) | Nanosilver Solution (g) | Span-80 (g) | Tween-80 (g) | Anhydrous Ethanol (g) | Rotational Speed (rpm) |
---|---|---|---|---|---|---|---|---|
1′ | 7.0 | 9.5 | 35.0 | 8.4 | 4.3 | 0.8 | 0 | 33.6 |
2′ | 7.0 | 9.5 | 35.0 | 8.4 | 5.0 | 0.8 | 0.1 | 33.6 |
3′ | 7.0 | 9.5 | 35.0 | 8.4 | 5.6 | 0.7 | 0.1 | 33.6 |
4′ | 7.0 | 9.5 | 35.0 | 8.4 | 6.3 | 0.7 | 0.2 | 33.6 |
5′ | 7.0 | 9.5 | 35.0 | 8.4 | 7.0 | 0.6 | 0.2 | 33.6 |
6′ | 7.0 | 9.5 | 35.0 | 8.4 | 7.6 | 0.6 | 0.3 | 33.6 |
7′ | 7.0 | 9.5 | 35.0 | 8.4 | 8.3 | 0.5 | 0.3 | 33.6 |
Sample | Wcore: Wwall | Wcore: Wemulsion | HLB Value of Emulsifier | Rotational Speed (r/min) | Coverage Rate (%) |
---|---|---|---|---|---|
1# | 0.80:1 | 1:4 | 3.7 | 600 | 27.0 |
2# | 0.80:1 | 1:5 | 4.5 | 800 | 40.0 |
3# | 0.80:1 | 1:6 | 5.4 | 1000 | 35.0 |
4# | 0.9:1 | 1:4 | 4.5 | 1000 | 41.0 |
5# | 0.9:1 | 1:5 | 5.4 | 600 | 30.0 |
6# | 0.9:1 | 1:6 | 3.7 | 800 | 23.0 |
7# | 1:1 | 1:4 | 5.4 | 800 | 27.0 |
8# | 1:1 | 1:5 | 3.7 | 1000 | 24.0 |
9# | 1:1 | 1:6 | 4.5 | 600 | 27.0 |
Mean 1 | 34.0 | 31.7 | 24.7 | 28 | |
Mean 2 | 31.3 | 31.3 | 36.0 | 30 | |
Mean 3 | 26.0 | 28.3 | 30.7 | 33.3 | |
R | 8.0 | 3.3 | 11.3 | 5.3 | |
Sum of Squared Deviations | 99.6 | 20.2 | 192.9 | 43.6 | |
Degrees of Freedom | 2 | 2 | 2 | 2 | |
Fratio | 1.2 | 0.2 | 2.2 | 0.5 | |
Fcritical Value | 4.5 | 4.5 | 4.5 | 4.5 | |
Significance | - | - | - | - |
Sample | Wcore: Wwall | HLB Value of Emulsifier | Wcore: Wemulsion | Rotational Speed (r/min) | Yield (g) | |
---|---|---|---|---|---|---|
Range | 1# | 0.80:1 | 1:4 | 3.7 | 600 | 6.2 |
2# | 0.80:1 | 1:5 | 4.5 | 800 | 6.5 | |
3# | 0.80:1 | 1:6 | 5.4 | 1000 | 6.1 | |
4# | 0.9:1 | 1:4 | 4.5 | 1000 | 6.8 | |
5# | 0.9:1 | 1:5 | 5.4 | 600 | 5.8 | |
6# | 0.9:1 | 1:6 | 3.7 | 800 | 5.4 | |
7# | 1:1 | 1:4 | 5.4 | 800 | 6.0 | |
8# | 1:1 | 1:5 | 3.7 | 1000 | 5.7 | |
9# | 1:1 | 1:6 | 4.5 | 600 | 6.2 | |
Mean 1 | 3.7 | 3.7 | 3.7 | 3.7 | ||
Mean 2 | 4.5 | 4.5 | 4.5 | 4.5 | ||
Mean 3 | 3.7 | 3.7 | 3.7 | 3.7 | ||
R | 4.5 | 4.5 | 4.5 | 4.5 | ||
Variance | Sum of Squared Deviations | 0.2 | 0.3 | 420 | 18.7 | |
Degrees of Freedom | 2 | 2 | 2 | 2 | ||
Fratio | 0.5 | 0.9 | 2.3 | 0.2 | ||
Fcritical Value | 4.5 | 4.5 | 4.5 | 4.5 | ||
Significance | - | - | - | - |
Sample (#) | Glass Substrate Surface Coating (%) | Andoung Wood Surface Coating (%) |
---|---|---|
0 | 67.00 | 45.37 |
1′ | 12.87 | 14.37 |
2′ | 14.20 | 17.23 |
3′ | 16.67 | 19.6 |
4′ | 17.17 | 17.23 |
5′ | 16.37 | 16.83 |
6′ | 14.17 | 13.03 |
7′ | 13.27 | 11.87 |
Sample (#) | HLB Value of Emulsifier | Visible Light Transmittance (%) |
---|---|---|
0 | 0 | 91.7% |
1′ | 4.30 | 94.9% |
2′ | 4.97 | 91.9% |
3′ | 5.64 | 90.2% |
4′ | 6.31 | 89.1% |
5′ | 6.98 | 87.8% |
6′ | 7.65 | 91.6% |
7′ | 8.31 | 88.1% |
Sample (#) | Hardness (H) | Adhesion (Level) | Impact Strength (kg·cm) | Roughness (μm) |
---|---|---|---|---|
0 | 2 | 1 | 15 | 0.4 |
1′ | 1 | 2 | 15 | 1.2 |
2′ | 2 | 2 | 14 | 1.3 |
3′ | 2 | 2 | 14 | 1.8 |
4′ | 2 | 3 | 13 | 2.0 |
5′ | 1 | 3 | 13 | 2.4 |
6′ | 2 | 3 | 12 | 2.4 |
7′ | 1 | 3 | 11 | 2.5 |
HLB Value of Emulsifier | Glass Substrate Surface | Andoung Wood Surface | ||
---|---|---|---|---|
Escherichia coli (%) | Staphylococcus aureus (%) | Escherichia coli (%) | Staphylococcus aureus (%) | |
4.30 | 56.6 | 49.4 | 41.9 | 61.2 |
4.97 | 80.7 | 74.6 | 75.7 | 70.9 |
5.64 | 58.3 | 65.4 | 50.3 | 63.8 |
6.31 | 51.3 | 66.0 | 30.8 | 42.4 |
6.98 | 43.0 | 51.2 | 16.8 | 30.2 |
7.65 | 48.1 | 53.0 | 28.2 | 34.5 |
8.31 | 50.2 | 53.1 | 31.0 | 37.5 |
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Pan, P.; Yan, X. Preparation of Antibacterial Nanosilver Solution Microcapsules and Their Impact on the Performance of Andoung Wood Surface Coating. Polymers 2023, 15, 1722. https://doi.org/10.3390/polym15071722
Pan P, Yan X. Preparation of Antibacterial Nanosilver Solution Microcapsules and Their Impact on the Performance of Andoung Wood Surface Coating. Polymers. 2023; 15(7):1722. https://doi.org/10.3390/polym15071722
Chicago/Turabian StylePan, Pan, and Xiaoxing Yan. 2023. "Preparation of Antibacterial Nanosilver Solution Microcapsules and Their Impact on the Performance of Andoung Wood Surface Coating" Polymers 15, no. 7: 1722. https://doi.org/10.3390/polym15071722