木/塑复合材料的发展趋势

本文介绍了木／塑复合材料的生产技术及应用状况，指出其与原木材料和纯塑料制品的性能对比优势，开发厂商的开发及发展动态。     

新型栅条反应池在水处理中的应用

论述了一种新型的不锈钢栅条反应池在水处理中的应用效果。通过与传统的木网格反应池的生产性的对比试验，证明原水浊度较高时，该池反应的效果明显较好；但原水浊度较低时，没有明显优势。     

节水型洗衣粉的研制

本文论述研制节水型洗衣粉的必要性及其制造过程。并对洗衣粉的表面活性剂、助剂、消泡剂进行配方优选，研制出去污力强的节水型洗衣粉。     

一种螯合型钛酸酯偶联剂的制备

介绍了一种以钛酸四异丙酯、丙烯酸和焦磷酸烷基酯为原料,乳酸为螯合剂合成的钛酸酯偶联剂,它适用于无机粉末有机包覆改性中的粉末预处理。     

UV固化粉末涂料组成与性能的研究

采用功率热补偿型扫描量热仪和INSTRON32 11毛细管流变仪测定了UV固化粉末涂料用主体树脂的玻璃化温度 (Tg)和流变性能 ,研究了该涂料中不同光引发剂体系对涂料光固化性能和涂膜物理性能的影响 ,及添加不同纳米材料对涂料涂膜物理性能的影响。     

注射法生产高分子磁性复合材料的研究及应用

介绍了高分子材料(PA)中填充磁性材料时偶联剂、润滑剂的添加及注射压力，温度，注射速度对复合材料性能的影响。并简述了这种复合材料的应用前景和研发方向。     

几种云南木材液体浸渍行为的研究

研究了几种云南木材在水和有机液体中的浸渍行为 ,探讨了浸渍液体的溶解度参数、木材种类和密度、助浸剂、浸渍时间和压力以及电子束辐射 (EBI)等因素对木材的液体浸渍行为的影响     

Drought Stress Alters the Concentration of Wood Terpenoids in Scots Pine and Norway Spruce Seedlings

Drought is known to have an impact on the resistance of conifers to various pests, for example, by affecting resin flow in trees. Little is known, however, about the quantitative and qualitative changes in resin when trees are growing in low moisture conditions. We exposed Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) seedlings to medium and severe drought stress for two growing seasons and analyzed the monoterpenes and resin acids in the main stem wood after two years of treatment. In addition to secondary chemistry, we measured the level of nutrients in the needles and the growth response of seedlings. After the first year of treatment, drought stress did not affect the growth of seedlings, but in the second year, shoot growth was retarded, especially in Scots pine. In both conifer species, severe drought increased the concentrations of several individual monoterpenes and resin acids. Total monoterpenes and resin acids were 39 and 32% higher in severe drought-treated Scots pine seedlings than in the controls, and 35 and 45% higher in Norway spruce seedlings. In Scots pine needles, the concentrations of nitrogen and phosphorus increased, while magnesium and calcium decreased compared to controls. In Norway spruce needles, nutrient concentrations were not affected. The results suggest that drought stress substantially affects both the growth of conifers and the chemical quality of the wood. We discuss the potential trade-off in growth and defense of small conifer seedlings.     

超声波法制备纳米粉体工艺

本文阐述了超声波和超声化学的基本原理；讨论了超声化学法在纳米粉体材料制备中的应用；展望超声技术在纳米氧化铁制备中的应用前景。     

Direct modification of solid residues during co-firing of coal sludge and coal

In order to utilize the solid residues simultaneously with clean and high-combustion efficiency when firing high sulfur and ash coal sludge generated in coal washing process in China, the mineral composition and usability of combustion solid products were investigated when injecting compound additives into series of coals or coals blended with sludges. In this study, a single burner furnace was used for combustion test and the solid residues were analyzed by means of X-ray powder diffraction method. The influences of temperature, residence time, and compound additives on mineral characteristics of the residues have been discussed. The results indicate that, the compositions of solid products are principally free oxides and a small amount of gehlenite, dicalcium silicate, etc. below 1000 °C; when the firing temperature increases above 1100 °C, the major minerals are gehlenite and dicalcium silicate. Also it can be found that several seconds is not enough for mineral complete reaction, and suitable calcium oxide content and particles fineness are recommended. The result of combustion test shows that there is no evident effect on ignition and combustion when the additive/coal (a/c) ratio is below 30% by weight; and the normal stable combustion with ignition delay can be achieved when the a/c ratio is ranging between 30 and 50%; but the a/c ratio exceeding 50% will damage combustion and even result in fire extinction. Industrial test results indicated that the solid residues was composed of silicate mineral rich in belite by adopting compound additives, but the comprehensive reaction mechanism needs further studies as well as the effect of additives on combustion should be concerned.