废弃油脂在表面活性剂制备中的应用

详细综述了废弃油脂在洗涤用表面活性剂、轻纺用表面活性剂以及其他类型表面活性剂制备中的应用,并对其在表面活性剂制备应用中的意义进行了阐述。     

皮革工业用新型表面活性剂的应用进展

综述了天然表面活性剂、双子表面活性剂、高分子表面活性剂、反应型表面活性剂和特种表面活性剂等新型表面活性剂的性能以及在皮革工业中的应用现状;最后针对新型表面活性剂在皮革工业应用中存在的问题,对其发展方向和应用前景进行了展望。     

表面活性剂在石油化工设备清洗中的应用

简述了表面活性剂的结构特点、性质特征及石化装置中的污垢状况及特征,并列举了表面活性剂在化工设备清洗中的大量工业应用实例,指出了化工设备清洗剂中表面活性剂的应用特点及今后表面活性剂的发展方向。     

阴离子表面活性剂的应用与创新

阴离子表面活性剂是表面活性剂家族中的一大类别,在工业、农业以及民用产品中应用广泛。文章重点介绍了常用阴离子表面活性剂的特点、生产工艺以及在农业、纺织业、建筑业、石油、日化洗涤用品及化妆品中的应用,并展望了阴离子表面活性剂的发展前景。     

表面活性剂在化妆品中的应用

天然性、安全性、绿色环保性是化妆品发展的趋势,而表面活性剂是化妆品中最重要的成分,介绍了表面活性剂的具体分类及特点,表面活性剂在化妆品中的作用,最后简述了化妆品用表面活性剂的发展趋势,天然性、生物性表面活性剂在化妆品中的应用越来越被重视。     

表面活性剂在稠油乳化降黏中的应用

概述了国内外稠油乳化降黏用表面活性剂的研究进展,详细介绍了阴离子表面活性剂、非离子表面活性剂、阴离子一非离子两性表面活性剂及高分子表面活性剂、生物表面活性剂和氟碳表面活性剂等新型表面活性剂在稠油乳化降黏中的应用,评价了各种表面活性剂的优缺点,并提出了稠油乳化降黏用表面活性剂的发展前景。     

表面活性剂在液体洗涤剂中的应用

论述了表面活性剂在液体洗涤剂中的应用现状和发展趋势,分析了几种典型的阴离子表面活性剂、非离子表面活性剂和两性表面活性剂的特性和应用,并指出随着液体洗涤剂的发展趋势表面活性剂也朝着绿色和安全的趋势发展。     

表面活性剂在植物活性成分提取中的应用

综述了表面活性剂在植物活性成分提取中的应用。主要介绍了表面活性剂在辅助提取、微乳体系提取、浊点萃取植物活性成分中的应用及其作用原理和特点,并对表面活性剂在提取植物活性成分中的应用前景进行了展望。     

表面活性剂在纺织工业中的应用及发展

综述了表面活性剂在纺织工业中的应用情况,探讨了表面活性剂在今后几年内的发展方向,指出高分子表面活性剂、元素表面活性剂、Gemini表面活性剂和生物表面活性剂将是今后研究的热点.随着对表面活性剂研究的不断深入,将为纺织工业生产提供更适宜、高效的化学助剂.     

表面活性剂及其原料市场与发展趋势

介绍了日用化工在国民经济发展中的重要作用,指出了表面活性剂在各个行业中的应用和发展。分析了烷基苯、脂肪醇、脂肪酸、环氧乙烷和脂肪胺等表面活性剂原料市场,同时指出了表面活性剂的发展趋势。最后,提出了一些新兴的表面活性剂品种。     

表面活性剂在印刷工业中的应用

介绍了表面活性剂在印刷工业各个领域中的应用。其中包括在胶版印刷过程、制版过程、PS版的回收再生以及各种油墨和印刷用清洗用品中的应用 ,并介绍了若干相关的配方     

耐温耐盐型表面活性剂及其在油田中的应用

提出两种结构的表面活性剂 ,考察了它们的耐温耐盐性能。水溶液在 2 5 0℃温度下处理72h未观察到明显的分解 ,表明它们能耐高温 ;在矿化度大于 10 0 0 0 0mg/L ,钙镁离子大于5 0 0 0mg/L的水中仍表现出良好的表面活性 ,说明它们具有优异的耐盐性能 ,且盐含量越高 ,表面活性越强 ;在盐酸中也表现出极好的表面活性 ;防垢试验表明它们是一种表面活性剂型的防垢剂。研究了它们作为苛刻条件下的地层驱油剂、油井化学吞吐剂、酸液添加剂的油田应用效果 ,表明该表面活性剂在油田中具有广泛的应用前景     

Influence of Quartz,Kaolin, and Organic Matter on the Critical Micelle Concentration of Tween Surfactants and their Application in Diesel-Contaminated Soil Washing

Surfactant solutions are commonly used for the remediation of petroleum-contaminated soil due to their good petroleum removal performance, time-saving capability, and cost effectiveness. However, applying surfactants in excess concentrations could make oil recovery difficult. Moreover, residual surfactants in soil are toxic to microorganisms and plants. Thus, it is crucial to identify a suitable surfactant concentration for soil washing applications. The main objective of this study was to evaluate the effect of soil minerals (quartz and kaolin) and organic matter (OM) on the critical micelle concentration (CMC) of polyethoxylated sorbitan ester surfactants (Tween 20, 40, 60, and 80) and its effect on diesel removal from diesel-contaminated soil by soil washing. The results showed that Tween surfactants with shorter carbon chain lengths required higher CMC for diesel removal from quartz, while those with longer chains needed higher CMC for kaolin cleanup. FTIR results illustrated that oxygenated functional groups of Tween surfactants played an important role in their adsorption on quartz, while alkyl chains of Tween surfactants were responsible for their adsorption on kaolin. At a certain OM concentration, quartz and OM exhibited antagonistic effects, resulting in CMC reduction. In soil washing application, maximum diesel removal could be achieved from kaolin, in the presence of which surfactants exhibited the highest CMC. Based on FTIR results, the adsorbed surfactant could reduce the hydrophobicity of the kaolin surface, thus preventing the re-deposition of detached diesel.     

乙二醇基Gemini表面活性剂的合成研究进展

综述了以乙二醇为原料制备阳离子、阴离子、非离子和两性离子Gemini表面活性剂的合成方法,并对合成路线进行了总结和分析,对产物的性能及其应用进行了阐述。以乙二醇为主要原料合成的Gemini表面活性剂具有更高的表面活性、较低的临界胶束浓度、良好的润湿性和抗菌性,应用范围较广。     

高浓度硝基苯污染土壤的淋洗试验

本文探讨了3种常用表面活性剂Triton X-100、Tween-80、SDBS对高浓度硝基苯污染土壤的修复洗脱作用以及土壤对3种表面活性剂的吸附作用。淋洗实验结果表明,3种表面活性剂对土壤中硝基苯的去除与蒸馏水相比没有明显去除效果,而且实验土壤对3种表面活性剂均有较强的吸附作用。这种吸附作用对土壤中硝基苯的去除有严重不利影响。     

Waste Cooking Oil-Based Novel Gemini Imidazolinium Surfactants With Carbonate Linkage: Green Synthesis,Characterization and Properties Evaluation

Imidazolinium surfactants belong to the category of cationic surfactants that have already gained the great interest of researchers due to their varied range of commercial applications. With the advancement in the field of surfactants research, imidazolinium surfactants are being converted into their corresponding gemini surfactants. Gemini surfactants are known to have exceptional self‐assembling characteristics and exclusive interfacial activity that include much lower CMC and better ability to reduce surface tension than their conventional monomeric counterparts. Long reaction time associated with conventional thermal synthetic procedures and high production costs are the two major issues involved in the synthesis of gemini surfactants. The present research work involves the microwave synthesis of novel gemini imidazolinium surfactants with carbonate linkage. In order to synthesize cost effective gemini surfactants, waste cooking oils have been used as raw materials. Structural characterization of synthesized gemini surfactants has been achieved through ¹H‐NMR, ¹³C‐NMR and FT‐IR.     

Recent advances in gemini surfactants: oleic Acid-based gemini surfactants and polymerizable gemini surfactants

Gemini surfactants recently developed by our research group are introduced from the standpoints of their syntheses, aqueous solution properties, and potential applications. Two series of gemini surfactants are introduced in this short review, the first of which is the oleic acid-based gemini surfactants, and the second is the polymerizable gemini surfactants. These gemini surfactants have been developed not only as environmentally friendly materials (the use of gemini surfactants enables the reduction of the total consumption of surfactants in chemical products owing to their excellent adsorption and micellization capabilities at low concentrations) but also as functional organic materials.     

Quaternary pyridinium salts: a review

Cationic surfactants are being used in various applications industrially and domestically for a long time. Pyridinium salts come under the category of cationic surfactants. These are unsaturated heterocyclic compounds having different functional groups present either on pyridine ring or at nitrogen atom. Initially, they were only considered as effective germicides. Several researches have been done for the modification of the properties of these salts, making them important for various applications. This paper reviews the types, synthesis, properties, and applications of quaternary pyridinium salts.     

表面活性剂在污染土壤生物修复中的应用

评述了表面活性剂在疏水性有机物污染土壤生物修复中的应用。从表面活性剂、污染物、土壤及微生物之间相互作用的角度讨论了表面活性剂的作用机制。指出导致污染土壤生物修复效率低的一个很重要原因是传递问题,而表面活性剂的加入可以加快疏水性有机物污染物从土壤表面到水相的传质过程。目前已经发现某些表面活性剂能够促进疏水性有机污染物的生物降解,但并未发现一致的规律。