Technical assessment of three layered cement-bonded boards produced from wastepaper and sawdust

Fuwape, J. A.; Fabiyi, James S.; Osuntuyi, Edward Olusola

doi:10.1016/j.wasman.2006.09.005

Cited by 23 publications

(17 citation statements)

References 4 publications

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“…This assumption has been confi rmed in the selected sawmills in Akure as it could be noted that the percentage of log input accounted as waste is about 43.91 %. As a result of variation in shape and form of logs, it is very important to position them properly for sawing so as to reduce waste and derive maximum volume of sawn timber (Fuwape and Sobanke, 1998). Optimum utilization of round logs is obtainable if the log is properly positioned during conversion and turned frequently for effi cient recovery of sawn timber.…”

Section: Raspravamentioning

confidence: 99%

Lumber Recovery Efficiency among Selected Sawmills in Akure, Nigeria

2012

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Section: Raspravamentioning

confidence: 99%

Lumber Recovery Efficiency among Selected Sawmills in Akure, Nigeria

2012

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“…Fiber of coir (Cocus nucifera) was used to produce cement-bonded boards by Ferraz et al [14] with MOR of 3.78 MPa. MOE in the dry condition ranged from 1.35 to 3.72 GPa also for OCC/400 and OCC/FF/400, respectively, while Fuwape et al [6] obtained reported MOE values ranging from 2.80 to 5.57 GPa. Ferraz et al [14] reported maximum MOE of 1.15 GPa.…”

Section: Wfc Sheets Testingmentioning

confidence: 90%

“…All the remaining treatments presented low TS under 1%. Other authors reported higher TS: 2.9%, Erakhrumen et al [13]; 3.55% to 12.3%, Fuwape et al [6]; 1.49%, Silva et al [41]; and 1.6%, Ferraz et al [14]. When the sheets made with corrugated fibers are compared with data for the control samples, panels made with OCC/400 are significantly different from those using P. radiata.…”

Section: Wfc Sheets Testingmentioning

confidence: 91%

“…These values are equal or superior to WFC sheets reported in the literature using fibers from wastepaper. Fuwape et al [6] used wastepaper and sawdust and obtained MOR ranging from 4.85 to 11.69 MPa. Goroyias et al [7] obtained 11.9 MPa using sludge.…”

Section: Wfc Sheets Testingmentioning

confidence: 99%

“…Available literature reports the use of virgin and recycled newsprint fibers [4][5][6][7][8]. A small amount of information is found regarding the use of recycled containers and the effect of fiber fractionating on the properties of WFC sheets.…”

Section: Introductionmentioning

confidence: 99%

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Recycled Old Corrugated Container Fibers for Wood-Fiber Cement Sheets

Teixeira¹

2012

ISRN Forestry

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Recycled pulp of old corrugated containers (OCCs) was studied as a possible fiber source for wood-fiber cement (WFC) sheets. This industry currently largely relies on kraft pulp, an expensive fiber source. Thus, WFC sheets were made using less costly OCC fibers utilizing various types of treatments including fiber fractionation (FF) and refining to 500 and 400 Canadian Standard Freeness (CSF) to determine the effect of these treatments on the sheets strength. Unprocessed virgin kraft fiber of radiata pine (Pinus radiata) was used as control for comparison purposes. The unprocessed OCC pulp furnish yielded an initial freeness of 635 CSF; after fractionating, however, it was increased to 754 CSF. OCC pulp presented a kappa number of 47, compared to 23.7 for P. radiata. Fractionating OCC pulp was effective in raising the range of long fibers in the stock from 68 percent to 85 percent, before and after fractionating, respectively. Results from WFC sheets made in laboratory showed that there was no significant difference in board strength among boards made with unprocessed OCC fibers, fractionated and refined OCC, and P. radiata fibers. However, sheet strength decreased when refined OCC fibers were used. The results suggest that OCC fibers can produce WFC sheets with desirable characteristics compared to those of unrefined virgin kraft fiber of P. radiata.

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Characteristics of undeinked, alkaline deinked, and neutral deinked old newspaper fibers reinforced recycled polypropylene composites

Zhang

Cong

et al. 2017

Polymer Composites

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The properties of old newspaper fibers (ONPF) reinforced recycled polypropylene (rPP) composites (ONPF/rPP) have been studied. The effect of alkaline and neutral deinking treatments of ONPF was investigated. The tensile and flexural strength of ONPF/rPP composites were significantly improved when compared to the neat rPP. Composites from neutral deinked fibers showed slightly better mechanical strength than that reinforced by alkaline deinked fibers. The effect of the ONPF deinking treatment on the water absorption of the composites was notable. Thermogravimetric analysis revealed that deinked ONPF/rPP composites had lower thermal stability. Differential scanning calorimetry showed deinking treatment reduced the degree of crystallinity of composites as compared to the undeinked composites. X‐ray diffraction was used to characterize the crystallization structures of composites. Scanning electron microscopy micrographs of 20 wt% ONPF/rPP composites showed well fiber dispersion in the matrix. Interfacial adhesion was decreased in the deinked samples due to removal of ink particles. POLYM. COMPOS., 39:3537–3544, 2018. © 2017 Society of Plastics Engineers

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Technical assessment of three layered cement-bonded boards produced from wastepaper and sawdust

Cited by 23 publications

References 4 publications

Lumber Recovery Efficiency among Selected Sawmills in Akure, Nigeria

Lumber Recovery Efficiency among Selected Sawmills in Akure, Nigeria

Recycled Old Corrugated Container Fibers for Wood-Fiber Cement Sheets

Characteristics of undeinked, alkaline deinked, and neutral deinked old newspaper fibers reinforced recycled polypropylene composites

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