Papers by Author: Bing Liu

Abstract: Take full advantage of the natural luster of the wheat straw surface pleasing to the eye, fresh and natural, easy and pro-and texture, on the basis of the traditional weaving process, as a guide to modern art and design school, linear weaving straw art research and the use of modern aesthetic point of view of its weaving pattern design, explore traditional weaving skills at the same time, optimize the performance of straw handicrafts decorated, reliable optimization of design parameters and the overall theoretical basis for the new straw art and fiber art R & D and innovation, efficient use of straw raw materials and increase value-added products to explore new avenues.

Abstract: Wood because of its unique texture, color, smell has a good affinity with the people is to improve the living conditions of very rational ship materials, Can the wood material applied on a large surface ships, the key is fire prevention. This will be the leading domestic and foreign varieties of fire retardant wood elaborated, And proposed development and application of wood composite materials, to improve the habitability of large surface ship design and improve work efficiency and thus improve the ship crew the importance of fighting; The flame-retardant composite sheet material of biomass improved formulations, which can effectively achieve the fire retardant requirements of large surface ships, ultimately achieving the purpose of the application of the ship.

Abstract: Expandable polystyrene and expandable polyethylene foams are frequently used in packaging of products. The study on their cushioning properties is important for the design of the transport package. The effect of compression speed and multiple reloading on the cushioning properties of HDEPS, LDEPS and HDEPE was studied in this paper. The results indicate that the cushioning properties of HDEPS and LDEPS are affected obviously by the compression speed, but the change of the cushioning properties for LDEPE was unconspicuous with the compression speed. LDEPE appeared obvious fatigue after twice reloads.

Abstract: With JC2000A Contact Angle Measuring Apparatus and established model of rice straw surface wetting, to improve the surface wetting properties of Rice Straw, effects of four kinds of alkali spray on Rice Straw at room temperature on contact angle was studied. The result shows that after alkali treatment the surface wettability of Rice Straw obtained significant improvement, contact angle decreases with the treatment time extended. The contact angle change rate reached the largest within 10min with the decreasing gradient of 20.64% when rice straw was dealt with NaNH2 at the mass fraction of 1%. Under the same conditions, rice straw processing with CaH2 has the minimum gradient contact angle change rate of 3.6%, A large number of Ca(OH)2 formation made The contact angle did not change significantly with time extended. Effect of NaOH treatment changed significantly over time, the optimum conditions of processing technology were obtained through orthogonal test: concentration of NaOH is 0.6%,solvent ratio 1:3.5 and reaction time 12h.

Abstract: Ethanoligenens sp. R3 isolated from anaerobic sludge in a continuous stirred tank reactor was investigated for its characteristics of fermentative hydrogen production in this study. Effects of initial pH value, fermentation temperature and proportion of carbon/nitrogen source on hydrogen production were investigated in batch experiments. The typical substrate for hydrogen production of glucose and peptone were used as the carbon source and nitrogen source, respectively. The results show that the maximum hydrogen production yield of 834 mlH2/L culture was obtained with initial pH value of 5.5 and fermentation temperature at 35°C. In addition, the maximum average hydrogen production rate of 10.87mmolH2/g cell dry weighth was achieved at the carbon/nitrogen source ratio of 3.3. The degradation efficiency of the glucose used as the carbon source ranged from 91.5% to 95.43% during the conversion of glucose to hydrogen by bacteria Ethanoligenens sp. R3.

Abstract: The wheat straw was pretreated using heat-treatment and water action and then diversified flat weave experiments were performed. Effects of the technology of knitting (including machinery spinning method, sewing spelling method, weaving process of "picks one pressures one" and "picks two pressures two") on veneer material quality and technology of decorative facing was investigated. The results show that both of sewing spelling method and weaving process of "pick two pressure two" achieve better effect with close construction, level, nice appearance and simple to weave. Experiments for optimizing the technology were performed by using non-woven fabric as the laminated veneer materials, The optimal technical parameters when using non-woven fabric were as follows: MDI 1.5％ and UF 8％ with the dosage of 50-80g/m2; temperature of 85-105°C; pressure of 0.2-0.5 MPa; time of 25min(10 sheet at a time).

Abstract: A new kind of bio-based composite panel with veneer material and performance of decorative material was produced by process of dissection, staining, weaving and collage. The bio-based composite panel was instructed with art design using the wheat straw as raw material. The facing technology of the bio-based composite panel with wheat straw veneer material was investigated and no previous research using pretreated wheat straw to produce the veneer material with characteristic of decorative function. The bonding strength was measured and it reached 0.75 MPa. It is demonstrated that pretreated wheat straw can be used for furniture manufacturing and decorative applications directly.

Abstract: Straw has a complex structure composed mainly by cellulose, hemicellulose and lignin, resulting in the difficulty to use it as the substrate for hydrogen production directly. Hydrogen production from saccharification plant straw was performed in this study. The effect of experimental time and temperature on saccharification efficiency of the straw was investigated in this work. The results show that efficiency of saccharification by hydrochloric acid on plant straw is better than that by acetate due to the different extent of acid ionization. The maximum sugar content of 36.8 Brix and 35.4 Brix was acquired at the experimental time of 1h and temperature of 20°C with the corresponding hydrogen yield of 0.02mlH2/L saccharification liquid and 0.0182mlH2/L saccharification liquid by bacteria SUES-1, respectively.

Abstract: An ethanol-based hydrogen producing bacteria Ethanoligenens R3 was isolated from continuous stirred tank reactor used for hydrogen production in previous experiment. Batch culture experiments were operated in this study with the fermentative temperature of 35°C and substrate concentration of 10g/L. The performance of hydrogen production from glucose, brown sugar and starch by Ethanoligenens R3 was investigated. The results show that the optimal substrate used for bio-hydrogen production was glucose with the maximum hydrogen yield of 834 mlH2/L culture. Furthermore, effect of initial pH of the culture medium on hydrogen production was studied. It is demonstrated that Ethanoligenens R3 reached the maximum biogas yield of 1760 ml/L culture with the maximum total VFAs concentration of 3329.39 mg/L at the initial pH of culture medium of 5.5.

Abstract: Batch culture of dark fermentation was carried out to study the feasibility of biohydrogen production using bagasse as the substrate. In dark fermentation, hydrogen was produced by mixed culture using bagasse as the substrate. To establish favorable conditions for maximum hydrogen production, process parameters such as temperature and initial pH of the medium were investigated. Also, the component of biogas and liquid products of effluent by fermentation were analyzed by gas chromatography. The VFAs were mostly ethanol, acetic acid, propionic acid and butyric acid, and no valeric acid was observed. It is demonstrated that the hydrogen yield reached the maximum of 30.5mlH2/g bagasse while the temperature was 35°C in batch experiments under a series of temperature (25, 30, 35, 40°C) conditions. The initial pH ranged from 6.8 to 8.5, and the yield of hydrogen reached the maximum of 32mlH2/g bagasse with the initial pH of 8.5.