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Microstructure and Properties of woodceramics Prepared from Lignin-modified Phenol-formaldehyde Resin

Journal of Wuhan University of Technology(Materials Science) 2012年第6期27卷 1077-1080页

作者：靳艳巧 ZHANG Yizhuan ZHAO Xiaoxiao CHENG Xiansu College of Materials Science and Engineering Fuzhou University

Novel woodceramics were successfully fabricated by enzymatic hydrolysis lignin （EHL） modified phenol-formaldehyde resin and woodpowders. The microstructure of woodceramics was investigated by FT-IR, X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The effects of EHL-modified PF resin on the properties of woodceramics, such as the weight loss ratio, volume shrinkage ratio, open porosity, bending strength and compressive strength, were studied. The experimental results showed that EHL modified woodceramics had a uniform porous structure. EHL-modified PF resin played an important role in the properties of woodceramics. With the increase of EHL-modified PF resin content, the open porosity, weight loss ratio and volume shrinkage ratio of woodceramics increased, but the bending strength and compressive strength decreased.

关键词： biopolymers composites woodceramics porous materials renewable resources

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Hydrogen Adsorption by woodceramics Produced from Biomass

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Journal of Shanghai Jiaotong university(Science) 2012年第3期17卷 330-333页

作者： TAKASAKI Akito IIJIMA Suguru YAMANE Tomoka OKABE Toshio Department of Engineering Science and Mechanics Shibaura Institute of TechnologyTokyo 135-8548Japan Aomori Prefectural Industrial Technology Research Center Aomori 030-0142Japan

Hydrogen adsorption characteristics of woodceramics,made from radiata pine wood fiber boards carbonized at 1 473 K after impregnation with phenolic resin,with and without chemical treatment in an alkaline(KOH) or an acid(H 2 SO 4) solution were investigated The hydrogen adsorption capacity is improved by chemical *** chemical treatment by KOH improves the adsorption capacity more than by H 2 SO *** improvement of the capacity level,in any solution,is dependent on the type of chemical in the solution and its *** maximum hydrogen capacity measured at 93 K is mass fraction about w(H) = 2% for the woodceramics after chemical treatment in a volume fraction = 50% KOH solution,although that is about w(H) = 0.7% for one without chemical *** microscopic condition of pores in the woodceramics is thought to vary after chemical treatment.

关键词： woodceramics biomass hydrogen adsorption chemical treatment isotherm

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Development of Renewable woodceramics Synthesized from Cashew Nuts Shell Oil

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Open Journal of Composite Materials 2021年第2期11卷 23-30页

作者： Toshihiro Okabe Kouji Fukuda Akito Takasaki Kazuhiko Kakishita Yuko Nishimoto Yoshikazu Shinohara Do Quang Minh Phan Dinh Tuan Ryoichi Yamamoto Department of Chemistry Faculty of Science Kanagawa University Kanagawa Japan Institue for Rura Engineering National Agriculture and Food Research Organization Ibaraki Japan Shibaura Institute of Technology Tokyo Japan Polytechnic University Tokyo Japan National Institute for Materials Science Ibaraki Japan Ho Chi Minh City University of Technology Ho Chi Minh City Vietnam Ho Chi Minh City University of Natural Resources and Environment Ho Chi Minh City Vietnam Yamamoto Eco Products Laboratory Tokyo Japan

The international issue to be addressed towards realizing a low-carbon society is to reduce the amount of carbon-based underground reserves such as coal, petroleum, and coke, and strongly encouraged to use carbon neutral biomass-derived resources. woodceramics is a hybrid porous carbon material composed of wood-based biomass and phenolic resin, characterized by high far-infrared emissivity and large specific surface area. woodceramics has been studied as heating elements and humidity and gas sensors, etc. If this is applied to the inner walls of aging and grain drying furnaces for vegetables and fruits, both ripening and drying are greatly promoted and fossil fuels used in boilers can be significantly reduced. In fact, it can produce black garlic with far infrared rays using a woodceramics brick efficiently. Furthermore, as a substitute for phenolic resin, if plant-based liquefied materials from cashew nut shell oil can be prepared and can be used for manufacturing woodceramics, then all carbon neutral circulating woodceramics made from wood-based biomass is possible to manufacture. On the other hand, woodplastics is a composite material that can be made of wooden materials and plastics, and able to expect the effective use of wood-based biomass and waste plastics.

关键词： Cashew Nuts Shell Oil Biomass Wood Liquefaction Woodplastics woodceramics

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