Effect of Hot-Pressing Temperature on Characteristics of Straw-Based Binderless Fiberboards with Pulping Effluent
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Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
2
MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Wood Science and Engineering, MOE Engineering Research Centre of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
3
Tianjin Rongyeda Technology Development Co., Ltd., Tianjin 300384, China
*
Authors to whom correspondence should be addressed.
Materials 2019, 12(6), 922; https://doi.org/10.3390/ma12060922
Received: 10 February 2019
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Revised: 10 March 2019
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Accepted: 12 March 2019
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Published: 20 March 2019
(This article belongs to the Section Biomaterials)
This study aimed to improve straw-based fiberboard properties without resins by adding pulping effluent as well as to investigate the difference among boards under variable hot-pressing temperatures. The characterization of fiberboards produced from wheat straw under pressing temperatures ranging from 160 to 200 °C was first described. The surface appearance, surface chemistry, thermal transitions, and mechanical performance of the boards were evaluated to investigate the effect of varying hot-pressing temperature. The results indicated that the surface color of boards became darker when the temperature was above 190 °C. Additionally, Fourier transform infrared (FT-IR) measurements showed that more low-molecular constituents and hydrogen bonds were produced under higher pressing temperatures. Furthermore, the physical and mechanical property data were analyzed statistically using one-way analysis of variance (ANOVA) and Tukey’s tests (α = 0.05). The results demonstrated that straw-based fiberboards with effluent under 190 °C exhibited superior strength and water resistance capacities, and showed great potential in commercial decorating and packaging applications.
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Keywords:
wheat straw; temperature; pulping effluent; self-bonding; fiberboards
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MDPI and ACS Style
Wang, J.; Wang, B.; Liu, J.; Ni, L.; Li, J. Effect of Hot-Pressing Temperature on Characteristics of Straw-Based Binderless Fiberboards with Pulping Effluent. Materials 2019, 12, 922. https://doi.org/10.3390/ma12060922
AMA Style
Wang J, Wang B, Liu J, Ni L, Li J. Effect of Hot-Pressing Temperature on Characteristics of Straw-Based Binderless Fiberboards with Pulping Effluent. Materials. 2019; 12(6):922. https://doi.org/10.3390/ma12060922
Chicago/Turabian StyleWang, Jiajun, Bo Wang, Junliang Liu, Lin Ni, and Jianzhang Li. 2019. "Effect of Hot-Pressing Temperature on Characteristics of Straw-Based Binderless Fiberboards with Pulping Effluent" Materials 12, no. 6: 922. https://doi.org/10.3390/ma12060922
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