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Back Cover: Efficient Cleavage of Lignin–Carbohydrate Complexes and Ultrafast Extraction of Lignin Oligomers from Wood biomass by Microwave-Assisted Treatment with Deep Eutectic Solvent (ChemSusChem 8/2017)

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ChemSusChem 2017年第8期10卷 1857-1857页

作者： Yongzhuang Liu Dr. Wenshuai Chen Qinqin Xia Bingtuo Guo Prof. Qingwen Wang Prof. Shouxin Liu Prof. Yixing Liu Prof. Jian Li Prof. Haipeng Yu Key laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Harbin 150040 P. R. China

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Theoretical design of Catalytically Important Diuranium(Ⅲ) Complexes

Theoretical design of Catalytically Important Diuranium(Ⅲ) ...

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中国化学会第30届学术年会-第十八分会：电子结构理论方法的发展与应用

作者：潘清江郭元茹 Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry School of Chemistry and Materials ScienceHeilongjiang University Key Laboratory of Bio-based Material Science and Technology of Education Ministry College of Material Science and EngineeringNortheast Forestry University

Understanding of reaction and structural property of diuranium（Ⅲ） complexes of a single ligand is essential to advancing their experimental synthesis and exploring promising applications in small molecule activation *** examined a series of diuranium（Ⅲ） complexes building on the reaction of[UI（THF）]and octadentate polypyrrolic ligands（HL and HL）.At the relativistic density functional theory level,11.2 kcal/mol energy is required to form the Pacman-like[（UI）（μ-I）(L)]（1） in THF solution,while only 0.5 kcal/mol for its non-classic Pacman isomer *** agree with their analogues that have been experimentally proposed.A variety of chemical modification has been made for *** addition of one THF solvent or one iodine ion raises reaction energy by 6.8～14.5 kcal/mol,while two or more are significantly *** energies of 1.4 and 7.4kcal/mol are required when varying bridged atom(from the iodine of 1 into the THF of 2[（UI）（μ-THF）(L)]) and lengthening ligand linker size(from ortho-phenylene of HL of 1 into anthracene of HL of 3[（UI）（μ-I）(L)]),*** diuranium（Ⅲ） complexes were optimized to be energetically *** U-U distances of 4.13 and 4.08 A were calculated for 1 and 2,respectively,compared with the long one of 5.90 A for 3.

关键词： polypyrrolic macrocycle diuranium(Ⅲ) complex thermodynamic calculation electronic structure relativistic DFT

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Examine temperature field at sealing surfaces treated by laser sealing using Ansys software

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IOP Conference Series: materials science and Engineering 2018年第2期452卷

作者： Trong Tuan Nguyen Tat Thang Nguyen Ngoc Hoan Le Quoc Huy To Jun Hua Department of Mechanical Design and Theory College of Mechanical Engineering Northeast Forestry University Harbin 150040 China Vietnam Academy of Forest Sciences Ha Noi Vietnam Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin 150040 P.R. China Vietnam National University of Forestry Ha Noi Vietnam Forest Industries Research Centre University of the Sunshine Coast Australia

Upon deposition of laser irradiation on sealing surface, energy build-up heats up the structural radiation area, significantly and rapidly changing the mechanical properties of the materials in the irradiated area. Consequently, the change of material properties leads to the liquidation of the radiated surfaces which is responsible for the binding efficacy of EVA glue. It is therefore important to investigate the temperature field during the transient sealing period. In our study we demonstrate a method of temperature field investigation by finite element analysis using Ansys software. Three-dimensional finite element simulation is employed to investigate the temperature fields and heat flux in a 0.2mm-thick adhesive layer on surface of a sealing edge with total thickness of 0.5mm x 22mm width. The laser beam was emitted by a device with laser power of 3kw, scanning speed 100mm/s, 980nm wavelength, induced temperature ranging from 100°C to 160°C. Results proved optimal temperature of 135°C, inducing total heat flux of 8731.8 w/m2 which is suitable for melting adhesive for optimized binding efficacy. Our study introduced the optimal temperature, heat flux generated by the laser beam yet retaining performance of adhesive, as well as ascertaining binding efficacy and durable linkage between EVA glue and surface of wooden boards.

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Booming research publications in China

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Journal of bioresources and bioproducts 2016年第4期1卷 159-161页

作者： Jing Shen Linqiang Zheng Zhibin He Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Material Science and Engineering CollegeNortheast Forestry UniversityHarbin 150040China Department of Chemical Engineering&Limerick Pulp and Paper Centre University of New BrunswickFrederictonNBE3B 5A3Canada

China has become a leading powerhouse in global research *** boom of scientific and technical papers published by Chinese researchers in terms of both quantity and quality has been well ***,concerns have been raised o... 详细信息

关键词： China Research output Academic system Scientific and technical papers Researchers

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Filling agricultural waste into coal mine goafs:a potential carbon sequestration in China

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Journal of bioresources and bioproducts 2016年第2期1卷 55-57页

作者： Hongbin Liu Xingye An Jing Shen Yonghao Ni Tianjin Key Laboratory of Pulp and Paper Tianjin University of Science and TechnologyTianjin 300457China Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Material Science and Engineering CollegeNortheast Forestry UniversityHarbin 150040China Department of Chemical Engineering&Limerick Pulp and Paper Centre University of New BrunswickFrederictonNBE3B 5A3Canada

China is a significant atmospheric carbon dioxide *** of agricultural waste in China is also a problematic issue,raising environmental and carbon-emission-related ***,the coal-dependent economy is accompanied by the formation of large coal mine goaf areas,particularly in Shanxi *** this context,the idea of filling crop residues into the coal mine goafs is *** concept addresses multi-functions:(1)carbon sequestration,(2)an alternative disposal method of crop residue in rural areas,and(3)coal mine goaf remedy.

关键词： Agricultural crop residues Coal mine goaf safety Climate change Carbon emission

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Cover Picture: Multifunctional bionanocomposite Foams with a Chitosan Matrix Reinforced by Nanofibrillated Cellulose (ChemNanoMat 2/2017)

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ChemNanoMat 2017年第2期3卷

作者： Yushu Wang Kojiro Uetani Shouxin Liu Xianquan Zhang Yucai Wang Ping Lu Tong Wei Zhuangjun Fan Jing Shen Haipeng Yu Shuya Li Qi Zhang Qing Li Juanjuan Fan Ningning Yang Qingwen Wang Yixing Liu Jun Cao Jian Li Wenshuai Chen Key Laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Harbin 150040 P. R. China College of Science Rikkyo University 3-34-1 Nishi-Ikebukuro Toshima-ku Tokyo 171-8501 Japan School of Life Sciences University of Science and Technology of China Hefei 230027 P. R. China Department of Chemistry and Biochemistry Long Island University Brooklyn NY 11201 USA Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001 P. R. China College of Mechanical and Electrical Engineering Northeast Forestry University Harbin 150040 P. R. China

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Preparation of corrosion-resistant, EMI shielding and magnetic veneer-based composite via Ni-Fe-P alloy deposition

Preparation of corrosion-resistant, EMI shielding and magnet...

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第六届全国生物质材料科学与技术学术研讨会

作者： Changhong Shi Li Wang Lijuan Wang Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University26 Hexing RoadHarbin 150040China

Ni-Fe-P ternary alloy coating was deposited on triplochiton sclexcylon veneers by electroless plating to prepare a magnetic,corrosion-resistant and electromagnetic shielding wood-based *** effects of solution pH and plating temperature on the deposition rate,surface resistivity,chemical composition and crystal structure of the coatings were *** surface morphologies were observed by using scanning electron microscope(SEM)and the chemical composition of the coatings were analyzed by energy dispersive spectrometer(EDS)and X-ray photoelectron spectroscopy(XPS).The magnetism and corrosion resistance were measured by vibrating sample magnetometer and potentiodynamic corrosion *** results show that the deposition rate increases with pH value increasing from 8.6 to 9.2 and temperature increasing from 70 ℃ to 90 ℃.The coatings obtained at experimental condition are all *** coating is mainly consisted of Ni0,Fe0 and P0,but the surface was polluted by the component of the plating *** coatings are uniform,continuous and compact,and the special structure of wood is still seen *** veneer-based composite exhibits higher corrosion resistance and *** ESE value reaches 40-60 dB in frequencies from 9 kHz to 1.5 *** work provided a new pathway for producing multifunctional wood-based composite.

关键词： triplochiton sclexcylon Electroless Ni-Fe-P plating magnetic corrosion resistance electromagnetic shielding effectiveness

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Reinforcement of Lignin-based Phenol-Formaldehyde Adhesive with Nano-Crystalline Cellulose (NCC): Curing Behavior and Bonding Property of Plywood

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materials sciences and Applications 2015年第6期6卷 567-575页

作者： Zhenbo Liu Yaolin Zhang Xiangming Wang Denis Rodrigue Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education) & Northeast Forestry University Harbin China FPInnovations-Wood Products Quebec Canada Department of Chemical Engineering Laval University Quebec Canada

The curing behavior of lignin-based phenol-formaldehyde (LPF) resin with different contents of nano-crystalline cellulose (NCC) was studied by differential scanning calorimetry (DSC) at different heating rates (5, 10 and 20°C/min) and the bonding property was evaluated by the wet shear strength and wood failure of two-ply plywood panels after soaking in water (48 hours at room temperature and followed by 1-hour boiling). The test results indicated that the NCC content had little influence on the peak temperature, activation energy and the total heat of reaction of LPF resin at 5 and 10°C/min. But at 20°C/min, LPF0.00% (LPF resin without NCC) showed the highest total heat of reaction, while LPF0.25% (LPF resin containing 0.25% NCC content) and LPF0.50% (LPF resin containing 0.50% NCC content) gave the lowest value. The wet shear strength was affected by the NCC content to a certain extent. With regard to the results of one-way analysis of variance, the bonding quality could be improved by NCC and the optimum NCC content ranged from 0.25% to 0.50%. The wood failure was also affected by the NCC content, but the trend with respect to NCC content was not clear.

关键词： Lignin-based Phenol-Formaldehyde Resin (LPF) Nano-Crystalline Cellulose (NCC) Curing Behavior Bonding Properties Plywood

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制备工艺对落叶松单板塑合木尺寸稳定性的影响

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林产工业 2015年第1期42卷 43-46页

作者：李春风王清文刘明利王海刚杨学东北华大学木质材料科学与工程省重点实验室 MOE Key Laboratory of Bio-based Material Science and Technology Northeast Forestry University China Forestry Bureau of Da'an in Jilin Province

以甲基丙烯酸甲酯(MMA)和苯乙烯(St)为浸注单体,马来酸酐(MAH)为交联单体,偶氮二异丁腈(AIBN)为引发剂,通过热引发固化,制备落叶松单板塑合木。探讨制备工艺对其尺寸稳定性的影响。结果表明:两步法制备的落叶松单板塑合木与素材及一步... 详细信息

以甲基丙烯酸甲酯(MMA)和苯乙烯(St)为浸注单体,马来酸酐(MAH)为交联单体,偶氮二异丁腈(AIBN)为引发剂,通过热引发固化,制备落叶松单板塑合木。探讨制备工艺对其尺寸稳定性的影响。结果表明:两步法制备的落叶松单板塑合木与素材及一步法塑合木相比,24h吸水厚度膨胀率分别降低了68.38%和51.24%,24h吸水增重率降低36.16%和1.92%。通过扫描电镜(SEM)观察两步法中聚合物与落叶松木材细胞壁结合更紧密和红外光谱分析仪(FTIR)证明两步法中马来酸酐反应较完全。说明两步法制备的落叶松单板塑合木的尺寸稳定性更优。

关键词：两步法一步法落叶松塑合木尺寸稳定性

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Application of mechanical model for natural fibre reinforced polymer composites

Application of mechanical model for natural fibre reinforced...

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作者： Cao, Y. Wang, W. Wang, Q. Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin150040 China Guizhou Minzu University Guiyang550025 China

Mechanical models were often used to describe and predict synthetic fibre reinforced thermosetting polymers. However, natural fibre reinforced thermoplastic polymers were less mentioned. In this paper, the application of mathematical methods in natural fibre-polymer composite was reviewed. Typical mechanical models, such as the rule of mixtures, inverse rule of mixtures and Hirsch models, were presented. The advantages and disadvantages of each model were pointed out. Finally, a flax-wood-polypropylene composite was taken as an example. Some models were compared to describe this composite. © 2014 W. S. Maney & Son Ltd.

关键词： Natural fibers

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