期刊
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
卷 91, 期 -, 页码 128-137出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2014.01.022
关键词
Wood polyvinylchloride composite; Fungicide; Soil-burial test; UV-aging; Anti-fungal evaluation
资金
- Thailand Research Fund (TRF) under the Royal Golden Jubilee PhD Program [PHD/0283/2551]
- TRF Senior Scholar Grant [RTA 5580009]
- Office of Higher Education Commission under the National Research University Program
- V.P. Wood Co., Ltd.
The anti-fungal performance and mechanical morphological properties of polyvinylchloride (PVC) and wood/polyvinylchloride composites (WPVC) doped with fungicide were studied for the effects of UV-weathering aging (0-32 days) and soil-burial exposure (0-6 months). Hevea brasiliensis Muell (HB) wood was used for producing the WPVC-HB composites and 3-iodopropinyl-N-butylcarbamate (IPBC) was used as a fungicide. Anti-fungal potential was evaluated using the disk diffusion method. It was found that the effects of UV-weathering aging and soil-burial exposure resulted in decreases in the flexural properties and dimensional stability of WPVC-HB composites, but the properties of pure PVC were not affected. Deterioration in the mechanical properties of WPVC-HB by both of the aging effects was slightly diminished by IPBC addition, but the thermal property tended to decrease due to IPBC degradation. FTIR and TGA results showed that UV-weathering had a greater effect on chemical changes of PVC in WPVC composites. Samples UV-aged for 32 days had decreased anti-fungal performance from 81.4 to 28.3%, while the 6-month soil-burial samples decreased from 81.4 to 4.4%. SEM studies showed evidence that addition of IPBC slowed the deterioration of the material properties for both the UV-weathered samples and the soil-burial samples. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
Article
Biotechnology & Applied Microbiology
Environmental implications of bacterial-derived extracellular reactive oxygen species
Shaofeng Zhou, Wenwen An, Cuifen Gan, Meiying Xu
Summary: Bacteria generate and release extracellular reactive oxygen species (eROS), which significantly contribute to the natural ROS pool and play a crucial role in metabolic interactions of bacteria with their environment. Understanding the behavior of eROS-generating bacteria and its environmental implications is of great importance in the cycling of biogeochemical elements, transformation of organic matter, and regulation of antibiotic resistance genes.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2024)
Article
Biotechnology & Applied Microbiology
Research on biodeteriotration of plastics
Ji-Dong Gu, Tim Ford, Bryce Mitton, Ralph Mitchell
Summary: Plastics and microplastics are widely present and accumulating in the environment, leading to increasing public attention. In addition to packaging plastics, materials from industries such as electronics, space and aviation are also accumulating, but receiving less attention. The production of degradable and biodegradable plastics is seen as a way to reduce environmental impacts, but enhancing the non-degradability of functional polymers is also a feasible option. Microbial colonization and deterioration pose significant challenges to these materials.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2024)
Article
Biotechnology & Applied Microbiology
Keratinolytic activity of pigmenting and non-pigmenting soils strains of Trichophyton ajelloi
Justyna Bohacz, Michal Mozejko
Summary: This study evaluated the keratinolytic activity of 37 strains of Trichophyton ajelloi and found that pigmented strains isolated from loamy soil were more efficient in degrading native feather keratin, while non-pigmented strains isolated from chernozem showed better abilities. The keratinolytic activity increased over time, as evidenced by the increase in extracellular keratinase activity and release of soluble proteins and peptides. Protease activity peaked in the first 7 days and again on day 28 of culture. The release of ammonium and sulfate ions, associated with an increase in pH, reached its maximum on day 21. Three pigment-producing strains were among the most active in releasing large amounts of ammonium and sulfate ions. The biodegradation of feather waste by Trichophyton ajelloi strains can be used to produce fertilizers suitable for plants with high sulfur requirements.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2024)
Article
Biotechnology & Applied Microbiology
The 50th anniversary of the International Biodeterioration and Biodegradation Society
Joseph M. Suflita, Brenda J. Little
Summary: This article reviews the major achievements of the International Biodeterioration & Biodegradation Society (IBBS) on its 50th anniversary and provides recommendations for addressing new challenges and developments based on personal experiences.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2024)
Article
Biotechnology & Applied Microbiology
Screening and degradation characteristics of plastic-degrading microorganisms in film-mulched vegetable soil
Zhenyan Lin, Tuo Jin, Xin Xu, Xiao Yin, Dan Zhang, Mengjiao Geng, Chunyu Pang, Gongwen Luo, Lizhi Xiong, Jianwei Peng, Jiangchi Fei
Summary: The incomplete recycle of residual mulch film (RMF) in recent years has led to an increase in plastic fragments in soil, posing a serious threat to the soil ecological environment. In this study, seven potential plastic-degrading microorganisms were screened and identified from film-mulched vegetable fields. The degradation ability experiments showed that both single strains and mixed strains demonstrated varying levels of degradation of RMF.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2024)
Article
Biotechnology & Applied Microbiology
Degradation by brown rot fungi increases the hygroscopicity of heat-treated wood
Tiina Belt, Michael Altgen, Muhammad Awais, Martin Nopens, Lauri Rautkari
Summary: This study investigated the degradation of heat-treated wood by brown rot fungi and found that the decay increased the hygroscopicity of wood in the decaying state. Furthermore, it was observed that heat-treated samples were more susceptible to fungal decay compared to untreated samples, which may be related to the increase in moisture content.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2024)
Article
Biotechnology & Applied Microbiology
Centimetric circular areas uncolonized by microbial biofilms (CUMBs) on marble surfaces and insights on a lichen-related origin
Marta Cicardi, Davide Bernasconi, Luca Martire, Linda Pastero, Giulia Caneva, Sergio E. Favero-Longo
Summary: This study investigated the phenomenon of Centimetric circular areas Uncolonized by Microbial Biofilms (CUMBs) on natural and heritage stone surfaces. The analysis revealed a compatibility in distribution and size between CUMBs and lichen thalli, suggesting a lichen origin for some CUMBs. Microscopic analysis also showed similar modifications in marble layers beneath CUMBs and lichens, indicating a possible alteration of stone properties by lichens.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2024)
分享论文
