An aesthetic transparent wood resistant to Escherichia coli based on interface optimization

Zhou, Jichun; Xu, Wei

doi:10.1007/s00107-023-01974-z

Cited by 7 publications

(5 citation statements)

References 31 publications

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“…This is due to the effective antibacterial component, coumarin analogs, in the Toddalia asiatica (L.) Lam. extracts of the core material, which has a higher antibacterial effect on Staphylococcus aureus than on Escherichia coli [50,51]. Therefore, the prepared antibacterial varnish achieved the maximum antibacterial rate against both Escherichia coli and Staphylococcus aureus when the W core :W wall ratio was 0.8:1 (Sample 12#).…”

Section: Effect Of Microcapsules On the Antibacterial Performance Of ...mentioning

confidence: 99%

Preparation of Toddalia asiatica (L.) Lam. Extract Microcapsules and Their Effect on Optical, Mechanical and Antibacterial Performance of Waterborne Topcoat Paint Films

Wang,

Yan

2024

Coatings

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The antibacterial microcapsules were prepared by encapsulating Toddalia asiatica (L.) Lam. extracts with urea–formaldehyde resin. The orthogonal test was designed to investigate the effects of the mass ratio of core and wall materials (Wcore:Wwall), emulsifier concentration, reaction temperature and reaction time on the yield rate and coverage rate of microcapsules, and to obtain the best preparation technology for microcapsules. The single-factor results indicated that the maximum influence factor was the Wcore:Wwall of the microcapsules; the larger the Wcore:Wwall, the easier the microcapsules were to agglomerate; and when the Wcore:Wwall was 0.8:1, the coverage rate reached the maximum value of 11.0%. The waterborne topcoat paint film was prepared by adding the microcapsules in the same content. The yield rate, coverage rate, and microscopic morphology of Toddalia asiatica (L.) Lam. extract microcapsules were analyzed, as well as the effects of microcapsules on the microscopic morphology, optical properties, cold liquid resistance, mechanical properties and antibacterial properties of a waterborne topcoat paint film. Combining the optical properties, cold liquid resistance, physical properties, and antibacterial properties of the waterborne topcoat paint film, the comprehensive performance of the waterborne topcoat paint film with the Wcore:Wwall of 0.8:1 was superior. The gloss was 8.07 GU, color difference ΔE was 9.21, visible light transmittance was 82.90%, resistance to citric acid, ethanol and detergent were grade 1, 2 and 2, respectively, elongation at break was 15.68%, and roughness was 3.407 µm. The antibacterial activity against Escherichia coli and Staphylococcus aureus were 42.82% and 46.05%, respectively. In this study, a waterborne topcoat paint film with a microcapsule-coated plant-derived antibacterial agent as the core was prepared, expanding the application prospect of plant-derived antibacterial microcapsules.

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Section: Effect Of Microcapsules On the Antibacterial Performance Of ...mentioning

confidence: 99%

Preparation of Toddalia asiatica (L.) Lam. Extract Microcapsules and Their Effect on Optical, Mechanical and Antibacterial Performance of Waterborne Topcoat Paint Films

Wang,

Yan

2024

Coatings

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“…The coatings with antibacterial microcapsules can protect the coating and optimize the living environment. The coatings with antibacterial properties can not only protect the substrate but also protect people's health [29].…”

Section: Of 23mentioning

confidence: 99%

Effect of Composite Addition of Antibacterial/Photochromic/Self-Repairing Microcapsules on the Performance of Coatings for Medium-Density Fiberboard

Deng,

Huang,

Yan

2023

Coatings

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In order to expand the research on a combination of functional microcapsules and water-based coatings, antibacterial microcapsules using 3.0% sodium dodecyl benzene sulfonate as an emulsifier, self-repairing microcapsules, and photochromic microcapsules were added to water-based coatings separately or in combination and coated on medium-density fiberboard to analyze the various properties of the coating. From the perspective of the antibacterial effect, the photochromic microcapsules have little negative impact on antibacterial properties and can be used in combination with antibacterial microcapsules. When the photochromic microcapsules and antibacterial microcapsules were combined, their antibacterial rates against Staphylococcus aureus and Escherichia coli were 51.9% and 55.6%, respectively. The self-repairing microcapsules in combination with antibacterial microcapsules lead to a significant decrease in the antibacterial rate and are not suitable for use in combination with antibacterial microcapsules. From the perspective of the photochromic effect, the addition of self-repairing microcapsules can accelerate the photochromic speed of the coating, improving the photochromic effect. The addition of antibacterial microcapsules made the photochromic rate slower. Both the antibacterial microcapsules and photochromic microcapsules have weakened the self-repairing ability of self-repairing microcapsules. The width change rate in coating scratches has decreased from 21.9% to 14.7% and 17.6%, respectively. However, compared with the coating without microcapsules, the self-repairing ability still improved. The results have broad prospects in the application of antibacterial microcapsules, self-repairing microcapsules, and photochromic microcapsules for coatings on medium-density fiberboards.

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“…At present, the main transparent materials are nonrenewable materials such as plastic and glass, 1 which lack good biodegradability, and their production requires a large amount of energy consumption additionally. 2 The wood resources on Earth are abundant and renewable, and in the context of the "achieve carbon peaking and carbon neutrality goals" strategy, researching and developing transparent wood is of great significance. 3 Transparent wood is usually prepared by introducing a resin with a refractive index similar to that of cellulosic materials into a cellulosic skeleton with the lignin removed.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Transparent wood (TW) is a new type of transparent material made from wood. At present, the main transparent materials are nonrenewable materials such as plastic and glass, which lack good biodegradability, and their production requires a large amount of energy consumption additionally . The wood resources on Earth are abundant and renewable, and in the context of the “achieve carbon peaking and carbon neutrality goals” strategy, researching and developing transparent wood is of great significance …”

Section: Introductionmentioning

confidence: 99%

Study on Transparent Basswood Dyed with Reactive Dyes and Its Properties

Zhao,

Rong,

et al. 2024

ACS Omega

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In this work, sodium chlorite method was used to remove lignin in basswood and then the wood was dyed with reactive red X-3B dye. Finally, ultraviolet curing resins with a refractive index similar to cellulose were vacuum-impregnated into the wood to obtain red transparent wood (RTW). Nowadays, transparent wood can be given color by various means and has a wide range of application prospects in the field of transparent wood decoration, but the color embodiment is relatively single. The aim was to develop a low-priced, easy-to-use process for the preparation of colored transparent wood with a sound color system. Transparent wood with colors will have more decorative and commercial value. The chemical composition, microscopic morphology, mechanical properties, and optical properties of dyed transparent wood were examined and analyzed. The results of the chemical composition analysis showed that after delignified treatment, the wood lost a large amount of lignin. After the dyeing treatment, the content of cellulose, hemicellulose, and lignin was slightly lost, and reactive dye groups appeared in the wood. Infrared spectra of transparent samples showed that the resin was successfully impregnated into the wood. The microscopic morphology analysis results showed that a small amount of dye molecules aggregated on the cell walls after dyeing treatment, and the resin was impregnated into the porous cellulose skeleton of the wood, filling the wood pores. The analysis of mechanical properties showed that the maximum tensile strength of dyed transparent wood reached 122.31 MPa, which was a higher resistance to tensile force compared to raw wood (with a maximum tensile strength of 97.56 MPa); the elongation at break reached 6.26%, which had better toughness compared to log (4.04%). Optical performance analysis showed that the transmittance of dyed transparent wood reached 81%, and dyeing did not change the transmittance of transparent wood. In addition, after undergoing yellowing resistance experiments, the color difference change of dyed transparent wood was much smaller than that of transparent wood.

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An aesthetic transparent wood resistant to Escherichia coli based on interface optimization

Cited by 7 publications

References 31 publications

Preparation of Toddalia asiatica (L.) Lam. Extract Microcapsules and Their Effect on Optical, Mechanical and Antibacterial Performance of Waterborne Topcoat Paint Films

Preparation of Toddalia asiatica (L.) Lam. Extract Microcapsules and Their Effect on Optical, Mechanical and Antibacterial Performance of Waterborne Topcoat Paint Films

Effect of Composite Addition of Antibacterial/Photochromic/Self-Repairing Microcapsules on the Performance of Coatings for Medium-Density Fiberboard

Study on Transparent Basswood Dyed with Reactive Dyes and Its Properties

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