Abstract
As one of fast-growth wood species, hybrid yellow poplar (YP-h, Liriodendron sino-americanum) has been extensively planted throughout of China, however, little is known about its properties and applicability in structural and nonstructural applications such as construction and furniture. The aim of this study was to evaluate the properties of YP-h and examine its differences with yellow poplar (YP, Liriodendron tulipifera). The average vessel diameter of YP-h (55 μm) was 19 % lower than YP (68 μm), but, the density of YP-h was 37 % higher than YP and the dimensional change in YP-h was higher than YP. Comparable tensile strength and flexural modulus were found in YP-h and YP, however, the flexural, shear, and impact strength of YP-h was 35 %, 40 %, and 55 % higher than those of YP, respectively. The drilling, mortising, and turning processability of YP-h were superior to those of YP. Compared to the gluing and coating performance of YP, YP-h had inferior gluing properties and equivalent coating performance. Therefore, hybrid yellow poplar can be an ideal candidate for yellow poplar to be utilized in construction and furniture
Highlights
Wood has been ubiquitously applied in construction, furniture, tools, and fuel for thousands of years due to its advantages of high specific strength, renewable, sustainability, attractive appearance, and ability to regulate the indoor temperature and humidity (Nguyen et al 2018, Feng et al 2019, Chen et al 2020a)
Both YP-h and YP have similar micro-structure, few fillers were found in the vessel and the thickness of the vessel was thinner than the wood cell wall (Figure 1a and Figure 1b)
The structural, physical, mechanical properties, machinability, gluing and coating performance of YP-h were systematically evaluated in this study
Summary
Wood has been ubiquitously applied in construction, furniture, tools, and fuel for thousands of years due to its advantages of high specific strength, renewable, sustainability, attractive appearance, and ability to regulate the indoor temperature and humidity (Nguyen et al 2018, Feng et al 2019, Chen et al 2020a). As one of the fast-growth wood species, yellow poplar (Liriodendron tulipifera) originated from eastern North America (Wang 2005, Xu et al 2010), has been extensively used in construction (Jennings et al 2006, Zink-Sharp and Price 2006, Ulker et al 2018), furniture (Salca and Hiziroglu 2014), biomass (Kim et al 2012a, Na et al 2015, Kim and Lee 2019), bio-oil (Kim et al 2012b), wood-based panel (Liu and Lee 2003, Shukla and Kamdem 2009), and nanofibers (Wang et al 2020).
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