萜烯碳氢溶剂的性能及其在精密清洗中的应用

本文简要阐述了碳氢溶剂作为清洗剂的特性和应用,介绍了作为CFC-113的永久性替代品萜烯碳氢清洗剂在一次性医疗器械等精密清洗中的应用前景.     

日本企业替代ODS及卤代烃清洗剂的主流技术碳氢清洗

日本企业在ODS和卤代烃清洗剂替代过程中形成的主流技术-碳氢清洗,具有洗净力强、适用面广、安全环保等诸多优势,值得我们学习和借鉴。本文详细介绍了碳氢清洗剂和真空清洗干燥机的特点和技术。     

家用空调的清洗

文章对家用空调的构造、工作原理及污垢对其造成的危害作了全面介绍，并分别介绍了家用空调两大组件：室内机和室外机的清洗方法。文章介绍了专业清洗公司的清洗方法。还对新型空调专用清洗剂的性能特点作了介绍。     

日本企业替代ODS及卤代烃清洗剂的主流技术碳氢清洗

日本企业在DDS和卤代烃清洗荆替代过程中形成的主流技术—-碳氢清洗，具有洗净力强、适用面广、安全环保等诸多优势，值得我们学习和借鉴。本文详细介绍了：碳氧清洗剂和真空清洗干爆机的特点和技术。     

建筑物外墙清洗(三)

文章对建筑物外墙产生污垢的原因及其种类、使用的清洗剂种类及其性能特点进行了介绍，并重点对铝材和石材的清洗做了具体介绍。     

建筑物外墙清洗(二)

文章对建筑物外墙产生污垢的原因及其种类、使用的清洗剂种类及其性能特点进行了介绍，并重点对铝材和石材的清洗做了具体介绍。     

等离子清洗洗技术(一)

文章对等离子清洗技术做了全面介绍,不仅介绍了有关等离子的基本概念、低温等离子体制备技术及其相关装置,而且着重介绍了它在精密清洗中的应用及其注意事项,指出等离子清洗技术在淘汰ODS清洗剂过程中能够发挥重要作用     

高层建筑物的外墙清洗

为适应高层建筑物外墙清洗技术在我国迅速发展的形势特编写此文，文章主要介绍了高层建筑物外墙清洗的设备和方法。针对建筑物污垢的成分、结构，附着方式和外墙材料理化性质及结构，指出清洗剂一般采用表面活性剂和助剂配成的水基洗济剂。并详细介绍了具体的清洗剂配方。     

半水清洗替代ODS清洗PCB的技术探讨

本文主要叙述了ODS清洗剂对大气臭氧层的破坏，从而导致对人类生存环境的危害，介绍了目前替代ODS清洗剂的几种方法。其中半水清洗替代ODS清洗PCB的技术是一种比较好的工艺方法。本文着重对我公司在实施这种方法过程中，设备的选型、清洗荆的选择、清洗技术参数的设定、清洗效果等进行了探讨。     

等离子清洗技术(二)

文章对等离子清洗技术做了全面介绍,不仅介绍了有关等离子的基本概念、低温等离子体制备技术及其相关装置,而且着重介绍了它在精密清洗中的应用及其注意事项,指出等离子清洗技术在淘汰ODS清洗剂过程中能够发挥重要作用     

光声光谱测量中溶剂效应的研究(Ⅱ)

研究了不同有机溶剂对光声信号的增强作用。从理论和实验上探讨了溶剂特性与光声信号强度的关系,得到各种溶剂的光声信号增强系数。     

羊毛沾污物与洗毛工艺(一)

本文对羊毛的沾污物质-羊毛脂、羊毛汗和尘土等作了较全面的介绍，同时介绍了洗毛的各种方法，并对水洗毛和溶剂洗毛进行了对比分析。     

羊毛沾污物与洗毛工艺(二)

本文对羊毛的沾污物质一羊毛脂、羊毛汗和尘土等做了较全面的介绍，同时介绍了洗毛的各种方法，并对水洗毛和溶剂洗毛进行了对比分析。     

Graphene-Based Advanced Membrane Applications in Organic Solvent Nanofiltration

Owing to the increasing need to mitigate excessive organic solvent waste, the efficient separation and recovery of organic solvents have received major research attention in recent years. The membrane-based organic solvent nanofiltration (OSN) process has demonstrated its feasibility in addressing this problem with low energy costs, compared to conventional separation techniques, such as adsorption, liquid–liquid extraction, and solvent evaporation. Recently, membranes made of 2D graphene-based materials have shown great promise because they attain high solvent flux and solute rejection using easy processing methods. Thus, this paper focuses on state-of-the-art studies of graphene-based membranes used in OSN processes, which include syntheses, characterizations, performance evaluations, membrane fouling, and simulation studies, in combination with the development of the “upper-bound” line to indicate the performance of graphene-based membranes. In this paper, critical challenges involved in the development of graphene-based membranes are also focused on and discussed to map out the future directions of these membranes in industrial OSN processes. In addition to OSN, this paper pertains to a broader audience in other separation processes, particularly in the fields of gas separation and water treatment.     

Elimination of Drying-Dependent Component Deviation Using a Composite Solvent Strategy Enables High-Performance Inkjet-Printed Organic Solar Cells with Efficiency Approaching 16%

Inkjet printing (IJP) is a roll-to-roll (R2R) compatible fabrication method for large-area organic solar cells (OSCs). Unlike the coating process, the films are formed through droplet leveling and merging during IJP, and the pre-deposited droplets are partly dissolved by the subsequent droplets. Such a process yields undesired printing pattern lines, especially in large-area printed films. This study reveals that such a temperature-dependent “drying lines-related” phase separation morphology has caused component variation in the organic blend films, which leads to an obvious inhomogeneity of photocurrent in the printed OSCs. Such a phenomenon is attributed to the solubility difference between organic donor and acceptor molecules in the main printing solvent. A composite solvent strategy of ortho-dichlorobenzene (oDCB)/trimethylbenzene (TMB) and tetralin (THN) is developed to solve this problem. The introduction of THN suppresses the formation of printing drying lines during high-temperature printing due to the preferential miscibility of acceptor in THN, leading to the efficiency improvement to 13.96% and 15.78% for the binary and ternary devices. In addition, the 1 cm² device with a disruptive pattern gives an efficiency of 12.80% and a certificated efficiency of 12.18%.     

溶剂效应对红外光谱影响的研究进展

溶剂效应诱导红外光谱的变化已经广泛应用于溶质-溶剂相互作用的光谱研究.介绍了红外光谱的溶剂效应,并归纳总结了近些年来国内外溶剂效应对红外光谱影响的理论计算和实验的研究进展,为进一步开展红外光谱溶剂效应的研究提供了参考意见.     

宽温、高压工作电解液的研制

介绍了混合溶剂体系,高压(350~400 V)、宽温(40 ~ +105℃)工作电解液的研制。发现以癸二酸铵作主溶质,添加适当副溶质GPA及优质添加剂的电解液具有耐腐蚀、高闪火电压、高氧化效率及高稳定等特点。用此电解液制作CD293X(400 V 220 mF)规格的电容器通过了105℃、1 000 h负荷寿命试验和105 ℃、500 h的高温贮存试验。     

Efficient MAPbl3 solar cells made via drop-coating at room temperature

Here we demonstrate a room-temperature drop-coating method for MAPbl3 films.By using low-boiling-point solvent,high-quality MAPbl3 films were made by simply casting a drop of solution onto the substrate at room temperature.This approach took advantage of the synergistic effect of good wettability and volatility of the solvent,enabling high nuclei density and compact film at room temperature.The crystal growth in different solvents was in-situ observed by using optical microscope,which helped us to understand the mechanism for the formation of different film morphology.Perovskite solar cells gave a PCE of 18.21％.     

LTE终端接收机射频吞吐量测试方法研究

阐述了LTE终端射频一致性测试标准3GPPTS36．521—1中终端接收机特性的吞吐量测试原理和方法,研究了相关的物理层吞吐量判决准则和原理,并对物理层吞吐量判决表的生成做了详细介绍。     

Tuning the Morphology and Performance of Low Bandgap Polymer:Fullerene Heterojunctions via Solvent Annealing in Selective Solvents

Low bandgap polymer (LBG):fullerene mixtures are some of the most promising organic photovoltaic active layers. Unfortunately, there are no post‐deposition treatments available to rationally improve the morphology and performance of as‐cast LBG:fullerene OPV active layers, where thermal annealing usually fails. Therefore, there is a glaring need to develop post‐deposition methods to guide the morphology of LBG:fullerene bulk heterojunctions towards targeted structures and performance. In this paper, the structural evolution of PCPDTBT:PCBM mixtures with solvent annealing (SA) is examined, focusing on the effect of solvent quality of the fullerene and polymer in the annealing vapor on morphological evolution and device performance. The results indicate that exposure of this active layer to the solvent vapor controls the ordering of PCPDTBT and PCBM phase separation very effectively, presumably by inducing component mobility as the solvent plasticizes the mixture. These results also unexpectedly indicate that solvent annealing in a selective solvent provides a method to invert the morphology of the LBG:fullerene mixture from a polymer aggregate dispersed in a polymer:fullerene matrix to fullerene aggregates dispersed in a polymer:fullerene matrix. The judicious choice of solvent vapor, therefore, provides a unique method to exquisitely control and optimize the morphology of LBG conjugated polymer/fullerene mixtures.