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Wood, silver-substituted zeolite and triclosan as biodegradation controllers and antibacterial agents for poly(lactic acid) (PLA) and PLA composites:
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TLDR
In this paper, a twin-screw extruder was used to extract poly(lactic acid) and wood flour/PLA composites, and two antimicrobial agents, triclosan and silver-substituted zeolite (Zeomic), were used to increase the Young's modulus of the composites.Abstract:
Poly(lactic acid) (PLA) and wood flour/PLA composites were prepared and blended with two antimicrobial agents, triclosan and silver-substituted zeolite (Zeomic), using a twin-screw extruder. The mechanical and thermal properties, antimicrobial activity, and biodegradation performance were investigated. The addition of wood and Zeomic was found to increase the Young’s modulus of the composites, whereas the tensile strength, elongation at break, and impact strength dropped. However, the mechanical properties of PLA and wood/PLA loaded with triclosan did not show any definite trends. Differential scanning calorimetry data indicated that the glass transition temperature value of neat PLA was 63°C, whereas those of wood/PLA composites were lower. When wood and Zeomic were incorporated, PLA exhibited double melting peaks. Triclosan (1.0 and 1.5 wt%) demonstrated antibacterial activity against Staphylococcus aureus, as determined by plate count agar technique, whereas Zeomic did not. Biodegradation tests of neat...read more
Citations
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Journal ArticleDOI
Zeolite-supported silver as antimicrobial agents
Prabir K. Dutta,Bo Wang +1 more
TL;DR: A comprehensive review of the research in this subject area over the past two decades can be found in this paper, where a critical assessment of the literature and future possibilities with silver/zeolite are discussed.
Roles and evidence of wood flour as an antibacterial promoter for triclosan-filled poly(lactic acid)
TL;DR: In this article, the authors evaluated the mechanical and antibacterial performances of poly(lactic acid) (PLA) as a function of triclosan and wood fillers under a wide range of contact times using Gram-negative Escherichia coli (E. coli) as testing bacteria.
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Soil Inoculation with Pseudomonas geniculata WS3 for Accelerating the Biodegradation Process of In Situ Compatibilized PBS/PLA Blends Doped with HPQM
TL;DR: In this paper, the authors studied the biodegradative activity of Pseudomonas geniculata WS3 and Stenotrophomonas pavanii CH1 on films with different ratios of polybutylene succinate (PBS)/polylactic acid (PLA), in submerged cultures.
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Effect of surface-modified silica on the thermal and mechanical behaviors of poly(lactic acid) and chemically crosslinked poly(lactic acid) composites:
TL;DR: In this paper, the properties of poly(lactic acid) (PLA) and chemically crosslinked poly(Lactic acid), in the presence of different types of silica (SiO2), were studied.
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Migration, physical and antibacterial properties of silver zeolite/poly(butylene succinate) composite films for food packaging applications:
TL;DR: In this paper, the development of antibacterial packaging can inhibit the bacterial growth and extend the food shelf life, which is a main factor in the reduction of food quality, leading to short-term food shelf-life.
References
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Journal ArticleDOI
Potential of silver nanoparticle-coated polyurethane foam as an antibacterial water filter
Prashant Jain,Thalappil Pradeep +1 more
TL;DR: Silver nanoparticles can be coated on common polyurethane (PU) foams by overnight exposure of the foams to nanoparticle solutions, which can be used as a drinking water filter where bacterial contamination of the surface water is a health risk.
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Effects of environmental aging on the mechanical properties of bamboo–glass fiber reinforced polymer matrix hybrid composites
Moe Moe Thwe,Kin Liao +1 more
TL;DR: In this article, the effects of environmental aging on tensile properties of both BFRP and BGRP systems were studied by immersing samples in water for up to 1200h at 25°C.
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A study of the effect of acetylation and propionylation surface treatments on natural fibres
TL;DR: In this paper, the effect of esterification between the acetyl/propionyl groups and the hydroxyl groups of the fiber was examined by attenuated total reflectance-Fourier transform infrared (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS), while its extent was assessed by titration.
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Melt–solid polycondensation of lactic acid and its biodegradability
TL;DR: In this article, the authors deal with the technology available for melt as well as solid state polycondensation of lactic acid (LA), the selection of catalysts, different synthetic methods, the effects of operating parameters on the MW of the product, and various properties of PLAs such as their physical, thermophysical, mechanical, electrical properties, degradation behavior and the dependence of these on the molecular weight.