几种阴离子表面活性剂的国内市场

针对2018年国内阴离子表面活性剂的生产、市场和产品价格优势进行详细分析,指出目前阴离子依然是日化行业主流产品,产品消化以烷基苯磺酸和脂肪醇醚硫酸盐为主,国内外经济形势和下游行业消费特征决定行业发展趋势。绿色化、功能化成为亮点。     

阴离子表面活性剂

摩那工业(Mona Industries)公司推出一种商品名为“Monafax”1214的阴离子表面活性剂。这种表面活性剂在漂白液中较其他次氯酸盐稳定(hypochlorite stable),能保持较高的氯含量。据说“Monafax”1214具有降低表面张力和润湿作用,能用于使用     

国内表面活性剂市场分析

表面活性剂作为精细化工的主要分支,其规模发展将在全球尤其亚太地区呈稳步增长趋势,表面活性剂在全球稳定增长的趋势为我国相关行业的发展和壮大提供了良好的外部环境,但由于与发达国家在产品结构与技术上的差距,行业也面临着严峻的考验。     

新的阴离子表面活性剂

未来的表面活性剂应对皮肤无刺激(用于化妆品中),性质稳定(用于工业及家庭用清洁剂中),并可生物降解以保护环境。为了满足这种要求,美国PPG公司于     

表面活性剂分析进展-阴离子表面活性剂

<正> 阴离子表面活性剂是我国产量最大的一种合成洗涤剂,其中尤以LAS的产量,约占合成洗涤剂年产量百万吨的90％以上。主要用于家庭和工业洗涤,其次是用作乳化     

阴离子表面活性剂测定方法综述

主要综述了目前国内阴离子表面活性剂的测定方法,包括分光光度法、流动注射法、两相滴定法、高效液相色谱法和光谱法,并总结了这些方法的优缺点。     

阴离子表面活性剂AES-A通过鉴定

由浙江大学应化所与浙江建德有机化工厂共同承担的省级新产品——月桂醇聚氧乙烯醚硫酸酯铵盐(简称AES-A),在建德有机化工厂建成300t/a生产装置。已通过省级技术鉴定,填补了国内空白。该新产品系新一代阴离子表面活性剂,具有去     

AGS氨基酸阴离子表面活性剂

江苏省南通县兴仁合成化工厂研制成功AGS氨基酸阴离子表面活性剂,于1988年12月28日在南通通过由江苏省南通市科委组织的技术鉴定。该产品的研制成功,填补了国内空白。目前已投入批量生产。     

新的温和性阴离子表面活性剂

日本第一工业制药公司实现了一种新的温和性阴离子表面活性剂醚羧酸盐“ネオハイラノ ルＥＣＬ系列”的商品化 ,其对皮肤与眼的刺激性很轻微 ,具有适度的洗净力和优良的起泡性。醚羧酸盐型表面活性剂可用如下通式表示 :ＲＯ(ＣＨ２ＣＨ２Ｏ) ｎＣＨ２ＣＯＯＮａ分子中有聚氧乙烯链和羧基这样的亲水基 ,具有烷基醚型非离子表面活性剂和类似肥皂的结构 ,故兼具两者的优点。该公司对疏水基（Ｒ）、ＥＯ加成摩尔数（ｎ）与表面化学特性、性能的关系进行了研究 ,决定实现Ｒ为月桂基 ,ｎ等于３和４ ５的ＥＣＬ -３０与ＥＣＬ -４５的商品化。Ｒ以…     

我国阴离子表面活性剂的生产近况及展望

综述了我国几种主要阴离子表面活性剂的生产近况、近年来产量、进出口量和表观消费量,并展望了我国表面活性剂工业的未来发展。     

阴离子和两性表面活性剂的相互作用

一、前言 个人护理品配方里的原料混合时发生的相互作用,要比每种原料的性质的总和还要多.其中有些相互作用还能形成自络合物,这些络合物对配方的功能特性有增强或减弱的作用.     

Determination of sultones in anionic surfactants

Saturated and unsaturated 1,3- and saturated 1,4-sultones in anionic surfactants are identified and measured by a series of separation maneuvers. The sultones are separated from the surfactant by ion-exchange treatment and concentrated by thin layer chromatography. By the use of high performance liquid chromatography, the sultones are identified on the basis of their retention times and are measured by comparing their peak areas with those of reference compounds. Adequate responses are obtained from 5 μg quantities of sultone, corresponding to 0.1 ppm sultone in a 50 g sample of alkylethoxy sulfate paste. All the sultones of interest are separated from each other. Chlorosultones can be determined after first treating them with collidine, which dehydrohalogenates them to the unsaturated sultones.     

Electrochemical degradation of anionic surfactants

This study was performed to investigate the electrochemical oxidation of anionic surfactants. In particular, a synthetic solution of sodium dodecyl benzene sulfonate and a real car wash wastewater were treated by galvanostatic electrolysis using a Ti–Ru–Sn ternary oxide and a boron-doped diamond (BDD) anode. Measurements of the Chemical Oxygen Demand (COD) and the concentration of the anionic surfactants were used to follow the oxidation. Using the Ti–Ru–Sn ternary oxide anode, the complete removal of COD and sodium dodecyl benzene sulfonate was obtained only in the presence of chloride ions that act as inorganic mediators. The oxidation rate was almost independent of current density and electrolyte flow rate. In the case of BDD the mineralisation of the sodium dodecyl benzene sulfonate was achieved in all experimental conditions due to reaction with hydroxyl radicals electrogenerated on the diamond surface during electrolysis. The COD removal rate increased with increase in electrolyte flow rate, indicating that the oxidation was mass-transfer controlled. Comparison of the results of the two electrodes showed that chlorine mediated oxidation at the Ti–Ru–Sn ternary oxide anode allowed a faster COD removal of both the synthetic solution and real car wash wastewater.     

阴离子表面活性剂在制革工业中的应用

简要介绍了表面活性剂的分类,综述了其在制革生产工序中常用的羧酸盐、磺酸盐、硫酸酯盐和磷酸酯盐型阴离子表面活性剂的结构和性能,着重阐述了阴离子型表面活性剂在浸水、脱脂、脱毛、脱灰、染色、加脂、涂饰等工序中的应用。     

Ion-chromatographic characterization of ethoxylated anionic surfactants

Alkyl ether sulfates (AES), analyzed by nonsuppressed or single-column ion chromatography with conductivity detection, generate profiles that are characteristic of the ethoxylate content. Identification of ethoxylation content was accomplished by calculating the slope of the log of the peak area for each homologue vs. the number of ethoxyl groups in the homologue. Quantitation of ethylene oxide content as well as quantitation of mixed alkyl sufates in the presence of AES in mixed surfactant systems is possible. Raw materials require only dilution in mobile phase, while finished products must be subjected to a solid-phase extraction by means of a reverse-phase cartridge and an ion-pair reagent. The chromatogram of the anionic surfactant yields the moles of ethoxylation and the characterization of the ethoxyl chain distribution. Anionic surfactant mixtures in products are identified and quantitated by reference to AES raw materials with a similar slope.     

国内磺化类绿色表面活性剂的应用与发展

综述了磺化类绿色表面活性剂在中国的应用与发展。介绍了几种来源于可再生资源的生物基磺化类表面活性剂的生物降解性和环境相容性等。为消费者在产品设计和消费倾向等方面提供相关信息。磺化类绿色表面活性剂已成为阴离子表面活性剂未来发展的方向之一。     

新型缩醛型阴离子表面活性剂的合成

在三氟化硼乙醚溶液的催化下,庚醛与环氧氯丙烷反应生成2-己基-4-氯甲基-1,3-二氧杂环戊烷。中间体再与亚硫酸钠进行磺化反应,合成缩醛型可分解表面活性剂（2-己基-1,3-二氧杂环戊烷-4）甲烷-1-磺酸钠盐。考察了原料摩尔比、催化剂用量、反应温度和反应时间对合成2-己基-4-氯甲基-1,3-二氧杂环戊烷产率的影响。最佳反应条件为n（环氧氯丙烷）∶n（庚醛）=1.125∶1,催化剂用量为0.5 mL,反应温度为55℃,反应时间6 h,产率为44.5%。所得中间体及目标产物经核磁及红外表征,并测定产物的临界胶束浓度cmc为3.0×10-3 mol/L。