Decay resistance of wood impregnated with monoethanolamine and sodium bisulfite pulping black liquors

Nayeri, Hamid Reza; Tarmian, Asghar; Abdulkhani, Ali; Ebrahimi, Ghanbar

doi:10.4067/s0718-221x2017005001001

Cited by 5 publications

(5 citation statements)

References 16 publications

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“…Since the mass loss is relatively less for treated blocks, it can be inferred that the extract might have formed a protective layer over the surface of wood blocks, at least throughout fungal decay (12 weeks). These results were similar to those previously reported by Nayeri et al (2017), Kwaśniewska-Sip et al (2018), Ouyang et al (2018), Izadyar et al (2020), Ahadnezhad et al (2021). The differences in ML varied depending on the plant extracts and the concentration used.…”

Section: Decay Testsupporting

confidence: 92%

“…A correlation between retention of extracts (Figure 6), WPG (Figure 7), and ML was also observed as the decay resistance improved with increasing retention and WPG. The results are in line with those reported by Nayeri et al (2017), Kwaśniewska-Sip et al (2018), Ouyang et al (2018), Zelinka et al (2020). The close relationships between dimensional stability and ML (described by second-degree polynomials) are also confirmed by coefficients of determination.…”

Section: Decay Testsupporting

confidence: 92%

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Economically Feasible Wood Biopreservation Platform in Lannea coromandelica (Houtt.) Merr. Against Wood Rotting Fungus Through Bio-Prospecting Weed Extracts

Gupta

Sharma

2021

Front. Plant Sci.

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As an alternative to synthetic preservatives, the use of plant-based, environmentally sustainable preservatives for wood protection has tremendous potential. The current research analyzed the dimensional stability and longevity of Lannea coromandelica wood using weed extracts viz. Lantana camara L. and Ageratum conyzoides L., respectively. Petroleum ether (PE) and methanolic weed extracts were used to treat wood blocks (5 cm × 2.5 cm × 2.5 cm) at varying concentrations ranging from 0.25 to 2.00%. The PE extract of A. conyzoides resulted in maximum swelling (tangential plane, 6.30%) at 2.00%, volumetric swelling coefficient (13.17%) at 1.50%, and volumetric shrinkage coefficient (7.71%) at 1.00% concentration, while maximum shrinkage (tangential plane, 4.10%) in methanol (M) extract was observed. In L. camara methanolic extract (1.00%), maximum anti-shrink efficiency (37.01%) was recorded. In vitro mycelial growth of the wood-rotting fungus was completely inhibited by PE extract from both weeds. However, the methanolic extract of A. conyzoides resulted in maximal inhibition (75.93%) at a concentration of 2.00%. Also, PE extract (2.00%) of A. conyzoides reduced the fungal colonization to 50%, as compared with control. The lowest weight loss (decay test, 12 weeks) was observed at a 2.00% concentration of L. camara PE extract. The present research highlighted that both A. conyzoides and L. camara could be used as an environmentally sustainable wood preservative substitute that will encourage the utilization of L. coromandelica in wood-based industries.

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Section: Decay Testsupporting

confidence: 92%

Section: Decay Testsupporting

confidence: 92%

Economically Feasible Wood Biopreservation Platform in Lannea coromandelica (Houtt.) Merr. Against Wood Rotting Fungus Through Bio-Prospecting Weed Extracts

Gupta

Sharma

2021

Front. Plant Sci.

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“…Karliati et al (2018) reported that the treatment of plywood with BL in PF resins can improve water resistance. A previous study by Nayeri et al (2017) reported that wood laminated with BL as a wood adhesive might not stick to or bind to cell wall components but form a waterinsoluble monoethanolamine polymer.…”

Section: Dimension Stability Pf/bl-impregnated Sc-ctlmentioning

confidence: 99%

Using kraft black liquor on coconut wood (Cocos nucifera) through impregnation with vacuum pressure method

Dungani

Karliati

Hadiyane

et al. 2020

J Indian Acad Wood Sci

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This study was conducted to enhance the physical, mechanical and thermal properties of the short cycle coconut wood (SC-CTL) by impregnating with the kraft black liquor (BL) and black liquor/phenol formaldehyde (BL/PF) resin. The SC-CTL was impregnated with different kraft BL and BL/PF resin concentrations (i.e., 10, 15, 20 and 25% w/w) using the vacuum pressure method. Dimensional stability, mechanical and thermal properties of the impregnated SC-CTL were analyzed according to the standards. The results showed that the impregnation of BL/PF resin into SC-CTL have improved the coconut wood's dimensional stability, mechanical and thermal properties. The morphology of coconut wood's cells loaded with BL/PF resin clearly showed a full penetration. The results also suggested that the addition of 20% BL/PF resin was sufficient to enhance the dimensional stability, mechanical and thermal properties of SC-CTL. Thus, it is evident that the BL has the potentiality to be used as impregnant in SC-CTL through impregnation with vacuum-pressure method.

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“…After impregnation, actual retention (AR) and weight percent gain (WPG) of the treated samples was determined according to the literature (Tascioglu et al 2012;Simsek et al 2013;Mohammadnia Afrouzi et al 2015;Ahmet et al 2017;Nayeri et al 2017;Gupta et al 2021) and by the following Eqs. 1 and 2,…”

Section: Preparation Of Treatment Solutions and Impregnationmentioning

confidence: 99%

Environment-friendly waterborne fire retardants for protection of wood and bark against fire flames

Hosseinashrafi,

Hosseinihashemi,

Gorji

et al. 2023

BioRes

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Flame retardancy was induced in maple (Acer velutinum) and ash (Fraxinus excelsior) wood and bark by means of mixtures consisting of bio-based materials such as starch (S) and glue (G) and water-based paint, MINWAX (M) in two different combined formulations with perlite (P) as the main fire retardant. The selected wood species as solid wood with two different treatable surfaces (with and without bark) were examined. The lowest and the highest mass loss occurred in the untreated-ash and untreated-maple wood samples with bark, while the lowest weight percent gain was related to PSGM-treated ash wood samples with bark, and the highest weight percent gain was related to PSGM-treated maple wood samples without bark. The lowest time to ignition and glowing point time were measured in the untreated-maple wood samples without bark, and the highest of them were measured in the PSGM-treated ash wood samples without bark. The effect of bark in the treated- and untreated-maple samples on the time to ignition and glowing point time was greater than the bark of treated- and untreated-ash samples, respectively. There was not any significant relationship between actual retention, weight percent gain, and mass loss for all treatments. However, there was significant difference between the individual and interaction agents on fire retardancy of treated and untreated samples.

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Decay resistance of wood impregnated with monoethanolamine and sodium bisulfite pulping black liquors

Cited by 5 publications

References 16 publications

Economically Feasible Wood Biopreservation Platform in Lannea coromandelica (Houtt.) Merr. Against Wood Rotting Fungus Through Bio-Prospecting Weed Extracts

Economically Feasible Wood Biopreservation Platform in Lannea coromandelica (Houtt.) Merr. Against Wood Rotting Fungus Through Bio-Prospecting Weed Extracts

Using kraft black liquor on coconut wood (Cocos nucifera) through impregnation with vacuum pressure method

Environment-friendly waterborne fire retardants for protection of wood and bark against fire flames

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