Effects of formulation variables on density, compressive mechanical properties and morphology of wood flour-reinforced phenolic foams

Mechanical, thermal and morphological characterization of cellulose fiber-reinforced phenolic foams

“…Concerning phenolic foams, in previous work we incorporated wood flour and lignin nanoparticle into a phenolic foam to increase the compressive mechanical properties of the material [5,6]. However, the incorporation of alternative reinforcements obtained from natural resources such as the cellulose fibers into phenolic foams has not been reported yet.…”

Characterization of Biobased Polyurethane Foams Employing Lignin Fractionated from Microwave Liquefied Switchgrass

“…However, lignin was not reinforcement filler in the foam in the report of Xue et al [30], who argued that lignin was not completely miscible with the polyol, and the uneven mixture of lignin and polyol resulted in irregular cellular structure and thus weakened the mechanical properties. According to other researches [33,34], the addition of 2 wt% and 1.5 wt% cellulose and wood flour into foams increased the compressive strength by 21% and 30%, respectively. In this study, the compressive strength was increased by 63% with the addition of lignin to the foam.…”

Investigation into Mechanical, Thermal, Flame-Retardant Properties of Wood Fiber Reinforced Ultra-High-Density Fiberboards

“…Wood fibers, an environmentally friendly, natural fiber, have been widely used in indoor furniture (Saz-Orozco et al 2014;Sommerhuber et al 2016;Wang et al 2016) and automobile interiors (Ann Gnpta et al 2008;Gallo et al 2013), but are not often used as structural materials in engineering due to their poor mechanical properties.…”

“…However, their production process creates a lot of dust and consumes a lot of electrical energy. Therefore, the authors proposed a novel, natural, fiber-reinforced biomass composite as an alternative to ceramic tiles for use in decorative facades, contributing to the sustainable development of green buildings.Wood fibers, an environmentally friendly, natural fiber, have been widely used in indoor furniture (Saz-Orozco et al 2014;Sommerhuber et al 2016;Wang et al 2016) and automobile interiors (Ann Gnpta et al 2008;Gallo et al 2013), but are not often used as structural materials in engineering due to their poor mechanical properties.Conventionally, wood fiber reinforced composites are composed of wood fibers that have been pressed together under high temperature and pressure with a resin binder to form a homogeneous board. Studies on wood fiber reinforced composites have mainly focused on low-density fiberboard (LDF) (< 600 kg/m 3 ) (Chen et al 2015a,b;Cai et al 2016) and medium-density fiberboard (MDF) (600 kg/m 3 to 800 kg/m 3 ) (Sliseris et al (2015) and Arévalo and Peijs (2016) prepared MDF using methylene diphenyl diisocyanate and the self-binding capability of cellulose, respectively.…”