陶瓷助磨剂的制备及其性能研究

应用曼尼奇反应制备了多胺基磷酸钠陶瓷助磨剂，采用红外光谱、差热分析等对合成的助剂进行了表征，该助剂用于对氧化铁以及石英滑石等原料的助磨测试表明，它是一种高效的陶瓷助磨剂，同时它还具有减水作用。     

以脱硫添加剂应对燃煤火电厂高硫煤的问题

我司设计入炉煤种硫份为0脱硫效率9浆液pH值维持5以上时脱硫系统S实际最大处理能力为26mg/m折合煤质含硫1通过采用脱硫添加剂,在保证脱硫效率大于9浆液运行pH值5的前提下,脱硫系统的S实际处理能力提高到3mg/m折合煤质含硫1有效解决了火电厂高硫煤的问题,提高了电厂的经济效益。     

ZCZJ2×3Y-2000型液体钻井液助剂自动加药系统研制

为提高钻井液配置及维护的质量和自动化水平,研制了ZCZJ2×3Y-2000型液体钻井液助剂自动加药系统。该自动加药系统由多仓储液罐、输液计量泵、质量流量计、搅拌器、控制阀及定量配料控制系统等组成,进液计量泵将液体原料桶中的液体钻井液助剂吸入储液罐中暂存。钻井液配制或维护时,定量配料控制系统设定加药参数后,一键式操作可实现出液计量泵将钻井液助剂自动精准输送至泥浆混合系统。该装置的成功应用为钻井液自动精准调控奠定基础,显著提高钻井液配制及维护的自动化和现场HSE水平。     

Additives to prevent the formation of surface defects during poly(vinyl chloride) calendering

Gas checks are visible fleck-shaped defects that occur on the surface of poly(vinyl chloride) (PVC) films during industrial calendering. Films containing these surface defects often do not meet minimum product specifications and therefore must be disposed of or recycled, resulting in increased cost and material waste. Currently, gas checks are controlled by keeping film gauge low and through trial-and-error modifications of processing parameters by calender operators. In this work, our group developed a series of chemical additives that can be blended with PVC to prevent the formation of gas check defects. We found that a series of poly(caprolactone) (PCL)-based compounds with diester linkers and alkyl chain cappers were all effective at preventing the formation of gas checks during calendering, with additive concentrations as low as 8 phr producing films with no gas checks. We found that the blends produced with our additives had higher melt viscosities than those produced with additives that do not remove gas checks, suggesting that viscosity plays an important role in preventing gas check defects.     

Effect of different organic compounds on the preparation of CaO-based CO2 sorbents derived from wet mixing combustion synthesis

CaO based sorbents have great potential for commercial use to capture CO_2 of power plants. In the demand of producing sorbents with better cyclic performance, CaO-based sorbents derived from different kinds of calcium precursors, containing calcium carbonate(CC-CaO), calcium gluconate monohydrate(CG-CaO), calcium citrate(CCi-CaO) and calcium acetate monohydrate(CA-CaO), were tested cyclically and compared using simultaneous thermal analyzer(STA). And further study was conducted on the sorbents modified with citric acid monohydrate and 50% gluconic acid solution by wet mixing combustion synthesis. The modified sorbents showed better performance and higher pore parameters as well as porous microstructure with more organic acid added. After 20 cycles of carbonation and calcination, the C2CCi8(CaO: citric acid = 2:8 by mass ratio) and C2G8(CaO: gluconic acid = 2:8 by mass ratio) sorbent possess CO_2 capture capacity of 0.45 g·g~(-1)(g CO_2 per g sorbents) and 0.52 g·g~(-1) respectively. The citric acid was more effective for modification than gluconic acid for extended 50 cycles. Furthermore, good linear relationship between CaO conversion and specific surface area as well as pore volume were determined, of which the specific surface area showed closer correlation with CaO conversion.     

大电流放电碱锰电池的进展

碱锰电池已广泛用于需要大电流放电的电器。为此应对碱锰电池需要进行重新设计。综述了大电流放电碱锰电池研发进展。为了适应大电流放电的要求,对负极锌粉的组成,锌粉粒径的分布,电解液对负极的影响,正极材料EMD的选择条件:包括EMD的功率系数、平均粒径、正极孔隙率以及添加剂的作用;石墨的新近开发,在正极中除了起电子导电功能外,可能有其它作用;EMD与石墨用量比对大电流放电电池性能有较大影响;对隔膜厚度的要求等均作了理论评述。     

无机物对锂电池聚合物电解质的影响

在倒相法制膜的基础上,添加两种不同的无机添加剂,制备出用于锂二次电池的复合型聚合物隔膜,并对其进行了形貌分析和电化学测试.通过吸液实验分析,添加SiO2、分子筛的复合隔膜有较高的孔隙率,能满足锂二次电池的要求.     

充电速率对镍电极析氧性能及充电效率的影响

采用三电极体系 ,通过排水取气法考察了不同充电速率对镍电极析氧特性的影响 ,得出在镍电极充电过程中 ,析氧时间、析氧电位和充电效率随充入容量的变化规律 ,总结出充电速率对充电效率的影响。要想降低析氧速率提高充电效率 ,应该选择合适的添加剂     

构树浆与综合利用研究的思考和实践

回顾了树皮制浆的回顾，简介了构树制浆与综合利用研究的科研思路和研究结果，提出了建立生产基地及生产林场和逐步实现产业人的设想，展望了韧皮纤维制浆的未来与希望。     

The wettability of Fe based alloy on TiO

For developing TiO based imitated gold materials, the wettabilities of Fe and Fe-Cr-Ni-Ti on TiO were studied. The results indicated that the wettabilities of Fe and Fe-Cr on TiO were poor, and their wetting angles were about 90° at melting point. The wetting angles reduced with the increase of wetting temperature, but the influence of temperature was small. Fe and Fe-Cr containing Cr 50% or less could react with TiO on the interface to form Fe₂Ti and Ti₂O₃, but this did not improve the wettability effectively. When Ni-Ti was added into Fe-Cr alloy, Ni₃Ti was formed on the interface, which can reduce the interface energy, improve the wettability, and prevent the formation of Fe₂Ti and Ti₂O₃. The wetting angles could go down to about 40° when 3% Ni-Ti was added to Fe-Cr alloy. Biography of the first author: LI Qing-kui, Dr., senior engineer, born in August 1966, majoring in rare metal materials.