Properties of medium density fiberboards made from renewable biomass

Ye, X. Philip; Julson, James; Kuo, Monlin; Womac, A. R.; Myers, D. Brenton

doi:10.1016/j.biortech.2006.04.022

Cited by 111 publications

(53 citation statements)

References 2 publications

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“…Wastewater treatment is necessary for black liquor emitted from the pulping process because of its high pH and content of malodorous reduced sulfur (Xiao 2005). Crop straw can also be used to replace timber in forests in the production of low-, medium-, and high-density fiberboards (Ye et al 2007). Fiberboard can be used as insulation material and in furniture construction (Li et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Environmental Comparison of Straw Applications Based on a Life Cycle Assessment Model and Emergy Evaluation

Gao¹,

Ti²,

Ning³

2014

BioResources

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Straw is considered to be a renewable resource for bioenergy and biomaterial. However, about 70% of straw is burned in fields, which causes serious air pollution in China. In this study, a life cycle assessment (LCA) model, together with emergy evaluation, was built to compare four straw applications after harvest vs. direct burning, including bioethanol (BE), combined heat and power plant (CHP), corrugated base paper (CP), and medium-density fiberboard (MDF). The results showed that BE and MDF would avoid greenhouse gas (GHG) emissions by 82% and 36%, respectively, while CHP and CP would emit 57% and 152% more GHG , respectively, compared with direct straw burning. Bioethanol had the highest renewability indicator (RI) of 47.7%, and MDF obtained the greatest profit of 657 Yuan·bale -1 . The applications CHP and CP had low RI (< 10.3%) and profit (< 180 Yuan·bale -1 ). Due to water recycling and electrical power as a coproduct, BE had the lowest value (3 × 10 11 sej·Yuan -1 ) of EmPM (emergy per unit money profit); the EmPM value of CP was 18.6 times higher than that of BE. The four straw applications would also greatly reduce particles emission (57 to 98%) to air. BE was judged to be the most environmentally friendly application among the four straw applications. Imposing a carbon tax would encourage investment in BE, but discourage the applications CHP and CP.

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Section: Introductionmentioning

confidence: 99%

Environmental Comparison of Straw Applications Based on a Life Cycle Assessment Model and Emergy Evaluation

Gao¹,

Ti²,

Ning³

2014

BioResources

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“…Although the MOE, MOR, and IB of OCB from KCP blend adhesive cannot compare with those of pMDI (Chauhan et al 2014), the mechanical properties of OCB are comparable with those of PF and UF (Ye et al 2007). Most importantly, KCP blend adhesive is environmentally friendly, with no harm to the environment and peoples' health.…”

Section: Optimization Of the Pressing Parametersmentioning

confidence: 94%

Preparation and Properties of Oriented Cotton Stalk Board with Konjac Glucomannan-Chitosan-Polyvinyl Alcohol Blend Adhesive

et al. 2015

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The use of formaldehyde-free, biomass-based composites has gained increasing attention in recent years because of their environmental benefits and superior strength properties. In this study, oriented cotton stalk board (OCB) was fabricated with an environmentally friendly, waterbased konjac glucomannan-chitosan-polyvinyl alcohol (KCP) blend adhesive using hot pressing technology. The effects of pressing parameters on the physical and mechanical properties of oriented cotton stalk board were examined in order to obtain optimal pressing parameters. Interfacial bonding surface was also examined with a scanning electron microscope and a fluorescence microscope. The optimal physical and mechanical properties were obtained at a pressing temperature of 150 °C for 15 min with a target density of 0.8 g/cm 3 during hot pressing. Adhesive content and hot pressing pressure had significant influences on adhesion. Mechanical interlocking was also observed between cotton stalks and the adhesive. OCB with KCP blend adhesive has comparable mechanical properties to that with urea formaldehyde resin or phenolic formaldehyde resin. OCB resinated with KCP blend adhesive is environmental friendly and has potential applications in furniture and interior decoration with less stringent requirements for water resistance.

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“…Extensive researches have been done to produce binderless composite boards based on kenaf fibers (Okuda & Sato 2004;Xu et al 2004;Widyorini et al 2005). However, physical and mechanical properties of non-wood lignocellulosic based fiber board (Eroglu et al 2001) is inferior to that of fiber board produced from softwood (Ye et al 2007). Board properties could be improved through various method of chemical activation, such as that of steam-pressed pretreatment on kenaf core carried out by Widyorini et al (2005).…”

Section: Kata Kuncimentioning

confidence: 99%