Wood/plastic ratio: Effect on performance of borate biocides against a brown rot fungus

Simonsen, John Lionel; Freitag, Camille; Silva, Antônio Augusto Moura da; Morrell, Jeffrey J.

doi:10.1515/hf.2004.031

Cited by 28 publications

(26 citation statements)

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“…The result shows that polymer composite has resistance to decay despite good fungal colonization on the composite surfaces. Similar results were reported by other authors …”

Section: Resultssupporting

confidence: 93%

Surface characterization of weathered and heat‐treated wood‐based composites reinforced by styrene maleic anhydride

Zor

Can

Gardner

2019

Color Research & Application

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The aim of this study was to investigate the effect of heat‐treated lignocellulosic filler on the surface characteristics and decay resistance of the wood flour/styrene maleic anhydride (SMA) composites. In this study, heat treatment was conducted at 212°C for 8 hours. Test specimens were prepared by injection molding at 220°C. Weathering tests were performed by cycles of UV‐light irradiation for 8 hours, water spray for 15 minutes, and then conditioning for 3.45 hours in an accelerated weathering test cycle chamber. Heat‐treated wood flour/SMA composites were evaluated for color changes, and attenuated total reflectance Fourier transform infrared (FTIR) spectroscopy was used to analyze chemical changes on the sample surfaces. The wood decay tests were performed of white rot fungus, Trametes versicolor (L.: Fr.) Pilat was based on mini‐block specimens on 48% malt extract agar in petri dishes. The study showed that color changes occurred when heat‐treated filler rate is increased in this material. Therefore, materials in 10% filler rate show lower color changes than other variation. As a result of the FTIR analysis, the addition of wood filler into the SMA causes changes in the chemical structure. In addition, the increase in wood filler reduced the resistance to weathering. Decay results showed that thermally modified wood has lower mass loss caused by fungal attack than untreated wood material. The weight loss decreases with the increase in wood flour rate expect 10%T and 10%UT in all composites.

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“…The result shows that polymer composite has resistance to decay despite good fungal colonization on the composite surfaces. Similar results were reported by other authors …”

Section: Resultssupporting

confidence: 93%

Surface characterization of weathered and heat‐treated wood‐based composites reinforced by styrene maleic anhydride

Zor

Can

Gardner

2019

Color Research & Application

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“…Zinc borate at 2% concentration was shown to prevent any weight loss in extruded WPC and will take at least 20 years to completely dissolve and leach from the material (28). Simonsen et al (78) determined that the addition of zinc borate or a blend of calcium and sodium borates before molding dramatically reduced weight losses of WPC due to decay fungi. Weight losses overall were below 2% when calculated on the basis of the wood content, however, the maximum weight loss of a WPC without any biocide was only 6%.…”

Section: Antimicrobial Treatments For Wpcmentioning

confidence: 99%

Biological Degradation of Wood—Plastic Composites (WPC) and Strategies for Improving the Resistance of WPC against Biological Decay

Schirp

Ibach

Pendleton

et al. 2008

ACS Symposium Series

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Much of the research on wood-plastic composites (WPC) has focused on formulation development and processing while high biological durability of the material was assumed. The gap between assumption and knowledge in biodeterioration of WPC needs to be reduced. Although some information on the short-term resistance of WPC against biological degradation is available, long-term data are required in order to adequately evaluate the performance of these relatively new materials and to enable use of WPC for structural applications. The influence ofabiotic factors on material performance also has to be considered. Thus, further market growth and differentiation, especially in Europe, may be achieved while simultaneously standardization issues are dealt with. 480

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“…Like other wood materials, WPCs need to be treated with the appropriate chemicals to prevent biological attack. Various preservatives and treatments have been used in WPC manufacturing to enhance its biological performances (Simonsen et al 2004).…”

Section: Introductionmentioning

confidence: 99%

High-Density Polyethylene-Based Composites With Pressure-Treated Wood Fibers

Shang¹,

Han²,

Zhu³

et al. 2012

BioResources

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High-Density Polyethylene (HDPE)-based composites with alkaline copper quaternary (ACQ)-and micronized copper quaternary (MCQ)-treated wood fibers were manufactured through injection molding. The mechanical properties, water absorption, and biological resistance properties of the fabricated composites with different coupling treatments were investigated. Composites with ACQ-and MCQ-treated wood had mechanical properties comparable with those made of untreated wood. The different coupling agents worked well for the treated wood materials. Similar water absorption behaviors were observed for the HDPE composites containing treated wood and those containing untreated wood. The results of the termite test showed that the composites containing untreated wood had slightly more weight loss. The decay test revealed that the composites containing treated wood had less decay fungal growth on the surfaces, compared with samples from untreated wood, indicating enhanced decay resistance for the composites from the treated material. The stable mechanical properties and improved biological performances of the composites containing treated wood demonstrated the feasibility of making wood-plastic composites with pressure-treated wood materials, and thus offered a practical way to recycle treated wood into value-added composites.

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Wood/plastic ratio: Effect on performance of borate biocides against a brown rot fungus

Cited by 28 publications

References 0 publications

Surface characterization of weathered and heat‐treated wood‐based composites reinforced by styrene maleic anhydride

Surface characterization of weathered and heat‐treated wood‐based composites reinforced by styrene maleic anhydride

Biological Degradation of Wood—Plastic Composites (WPC) and Strategies for Improving the Resistance of WPC against Biological Decay

High-Density Polyethylene-Based Composites With Pressure-Treated Wood Fibers

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