新型结构表面活性剂在涂料中的应用

从分子结构的角度,介绍了新型表面活性剂在涂料中的应用.着重介绍了Gemini型、Bola型、AB嵌段型、Dendrimer型表面活性剂的特点及功能,给出了各种表面活性剂用作助剂的动态.     

有机硅表面活性剂的特性及在农药中的应用

概述了有机硅表面活性剂的结构、制备方法、特性及用途,着重介绍了作为农药助剂用的有机硅表面活性剂对农业的独特作用,并且分析了农药用有机硅表面活性剂的市场现状及发展趋势。     

印染助剂发展的回顾与展望

回顾了我国印染助剂,特别是表面活性剂的发展状况。重点介绍了前处理助剂的革新和Gemini表面活性剂及树状聚合物的合成方法、性能及应用。提出行业应注重创新,以促进我国印染助剂发展。     

印染助剂发展的回顾与展望(续)

回顾了我国印染助剂,特别是表面活性剂的发展状况。重点介绍了前处理助剂的革新和Gemini表面活性剂及树状聚合物的合成方法、性能及应用。提出行业应注重创新,以促进我国印染助剂发展。     

含氟表面活性剂研究的热点及发展方向

简要介绍了含氟表面活性剂的种类和特性及其在洗涤助剂及其他领域中的应用状况，综述了当前含氟表面活性剂的合成方法，并探讨了目前含氟表面活性剂的研究热点和今后的发展方向。     

低VOC含量的水性建筑涂料体系中的磷酸酯

配制水性建筑涂料时，有些成分是必需的——乳液(基料)、颜料、成膜助剂、增稠剂和助剂。这些助剂包括表面活性剂，它能提供分散稳定性、底材施工的润湿性和增加光泽及展色性。本文主要介绍了这些表面活性剂(特别是磷酸酯类表面活性剂)在半光水性建筑涂料中所起的作用。     

水分散粒剂中助剂的性能及发展分析

对助剂在水分散粒剂中的作用原理、应用现状、发展趋势进行了综述。重点介绍了分散剂的作用及应用品种。着重论述了表面活性剂在水分散粒剂中的发展趋势,指出了专用型表面活性剂、分子量大的分散剂、表面活性高、环境相容性好的新型表面活性剂是当今表面活性剂发展的主要方向。     

含氟表面活性剂在农药中的应用

当使用常规助剂(碳-氢链组成)不能发挥药剂的药效时,使用含氟表面活性剂助剂,能起到理想的效果。论述含氟表面活性剂的性能和应用,在10%啶虫脒微乳剂中加入不同助剂,进行了对蚜虫的室内毒力试验。结果表明,使用含氟表面活性剂助剂有明显增效作用;其中含氟表面活性剂OBS助剂增效作用最大(91.70%),有机硅助剂次之(87%)。当含氟表面活性剂OBS与常规助剂JFC复配使用,发挥了最大协同增效作用(96.59%),远胜于含氟表面活性剂OBS助剂单用和与其他含氟表面活性剂助剂复配使用的效果。     

造纸工业中表面活性剂的应用现状与发展

介绍了由表面活性剂制备造纸助剂的功能、作用以及目前国内外表面活性剂的应用现状和趋势 ,最后提出了国内应重点开发的几类造纸工业用表面活性剂     

表面活性剂的工业应用及展望

表面活性剂是精细化工的重要门类之一,根据化工部精细化工产品分类暂行规定,精细化工产品共分十一大类,其中第九大类“催化剂和各种助剂”又分为二十类。表面活性剂虽仅属于二十类之一类,但实际上其余各类中绝大部分均与表面活性剂有密切关系,有的大多数品种就是表面活性剂,如:印染助剂、塑料助剂、橡胶助剂、皮革助剂等,有的则要用表面活性剂作为组分之一,如农药、染料、涂料、食品及饲料添加剂等。可以说,表面活     

洗衣粉的发展趋势

随着洗涤剂工业的发展,洗衣粉在洗涤剂工业中仍占有重要地位和最大份额。指出了洗衣粉的浓缩化,以及更高浓缩化的片状剂型的发展趋势。对洗衣粉的无磷化问题以有洗衣粉的配方设计进行了讨论。并就洗衣粉今后的发展提出了几点建议。     

CREEPING MOTION OF A BUBBLE WITH FIXED SURFACE CHARGE IN A UNIFORM ELECTRIC FIELD

Approximate solutions of the shape function and the electrophoretic movement of a bubble in an aqueous medium with ionized detergent and a small number of electrolytes under the influence of uniform electric field are derived. Specifically, a bubble that has the interface saturated and densely packed with detergent molecules is considered, and the charges were deemed to be fixed provided the position change among the detergent molecules is hindered relative to the free molecule. The surface tension at the interface is weakened with the addition of the detergent, and the deformation can be significant. The variation of the shape of the bubble was represented by the Legendre polynomial and the perturbed velocity profile was used to derive the drag force for the deformed bubble. The speed and size of the bubble was assumed to be very small so that the flow around it is in the creeping flow regime. The shape of the bubble with fixed surface charge undergoes a prolate deformation with axial symmetry around the axis parallel to the direction of the electric field and exhibits asymmetry with respect to the plane that goes through the center of the bubble and is perpendicular to the axis. But this asymmetry is not significant unless the surface charge density and the electric field are very large. Only symmetric deformation governs the movement, and, consequently, the drag force is not dependent on the sign of surface charge. As the bubble becomes more slender with deformation, the movement is enhanced.     

CREEPING MOTION OF A BUBBLE WITH FIXED SURFACE CHARGE IN A UNIFORM ELECTRIC FIELD

Approximate solutions of the shape function and the electrophoretic movement of a bubble in an aqueous medium with ionized detergent and a small number of electrolytes under the influence of uniform electric field are derived. Specifically, a bubble that has the interface saturated and densely packed with detergent molecules is considered, and the charges were deemed to be fixed provided the position change among the detergent molecules is hindered relative to the free molecule. The surface tension at the interface is weakened with the addition of the detergent, and the deformation can be significant. The variation of the shape of the bubble was represented by the Legendre polynomial and the perturbed velocity profile was used to derive the drag force for the deformed bubble. The speed and size of the bubble was assumed to be very small so that the flow around it is in the creeping flow regime. The shape of the bubble with fixed surface charge undergoes a prolate deformation with axial symmetry around the axis parallel to the direction of the electric field and exhibits asymmetry with respect to the plane that goes through the center of the bubble and is perpendicular to the axis. But this asymmetry is not significant unless the surface charge density and the electric field are very large. Only symmetric deformation governs the movement, and, consequently, the drag force is not dependent on the sign of surface charge. As the bubble becomes more slender with deformation, the movement is enhanced.     

MES在浓缩洗衣粉中的应用研究

从α－磺基脂肪酸甲酯钠盐（MES）的去污力优势,优良的抗硬水能力及其物理形态阐述了MES应用于浓缩洗衣粉的优势,介绍了MES应用于浓缩洗衣粉的生产工艺,并展望了MES在浓缩洗衣粉中的应用前景。     

皂基在洗涤剂中的应用

皂基是一种最常用的表面活性剂,常在洗涤行业中被用作洗涤剂的活性组分,同时也是一种常用的控泡剂。通过在洗涤剂中添加几种不同的皂来研究皂的加入是否对体系的使用性能产生影响。结果表明,不同皂的抑制泡沫的性能大不相同,并且在洗涤剂中加入皂能显著减少洗衣后的漂洗次数,极大地节省了水资源。     

Detergent enzymes: Developments during the last decade

The decade of the seventies saw dramatic changes in the formulation of heavy duty laundry detergents. The reduction in the STPP content in laundry product formulations was a notable example. During the early 1970s, heavy duty liquid laundry detergents were introduced and today represent an estimated 20% of the heavy duty laundry detergent market. A significant trend during this decade toward lower wash temperatures also appeared. These developments in home laundry products and washing trends have been followed by collateral developments in detergent enzyme technology. During the 1970s, a new generation of high alkaline, active detergent enzymes were developed. This new group of alkaline proteases were characterized by greater activity and stability under conditions of alkalinity between pH 10.5 to near 12, thus favoring phosphate-free detergent formulations. These enzymes also were found to exhibit superior stability in nonbuilt liquid laundry detergent systems. Safety considerations at the plant operation level have resulted in a continual improvement in the quality of coated and encapsulated detergent enzyme granulates. During the past 10 years, detergent enzymes have passed through three generations of physical forms, from the powders to prills to encapsulates. The decade of the 1980s offers exciting possibilities for enzymatic laundry products. The trend toward lower wash temperatures, caused initially by the popularity of synthetic fabrics, is being compounded by a radical reappraisal of household energy consumption patterns. In this new atmosphere of energy conservation, detergent enzymes will offer energy-saving options in an assortment of laundry products. Finally, as we start this decade of the 1980s, the spiralling cost of petrochemical feedstocks will cause us to rethink laundry product formulations and here again, detergent enzymes offer an important alternative for the future.     

A study of detergent biodegradability as shown by various analytical techniques

The data discussed in this paper indicate the importance of the application of a number of different analytical procedures to a detergent biodegradation study, since no single technique is an adequate means of measuring the various aspects of detergent biodegradability. This paper describes surface tension, colorimetric, manometric, radioactive, and GLC analytical methods applicable to detergent biodegradation analyses, with an interpretation of the results given by each method. The biological system used in the studies is also described. Presented at the AOCS meeting in Toronto, Canada, 1962.     

全球洗涤剂最新发展和技术动态

对2000年全球和国内洗涤剂市场现状及发展趋势作了简要的分析和评述，主要讨论了洗涤剂原料技术、制造技术和新型洗涤产品，以及洗涤革新技术的创新和发展，并就未来洗涤业将面临的严峻课题提出了思考建议。     

Enzymes in detergents

Factors affecting the performance of proteolytic and amylolytic enzymes in an anionic and nonionic detergent formulation have been studied using stain removal from EMPA blood-milk-ink and cocoa-milk-sugar soil test cloths as a measure of enzyme activity in the detergent solution. Factors considered include enzyme concentration, and temperature and pH of the wash solution. Results on stability of these enzymes in the two detergent formulations under accelerated storage conditions are also given. Presented at the AOCS Meeting, New York, October, 1968.     

洗农剂市场的变革

分析了目前我国洗衣剂的市场状况及市场格局的变化.指出,价格依然是消费者对快速消费品最为敏感的话题,洗衣粉的价格已经基本透明,洗衣液与洗衣粉相比在价格上有更多的回旋余地.论述了推广浓缩洗衣粉的必要性和必然性,指出浓缩化洗衣粉是洗涤用品工业发展的大势所趋.