共查询到20条相似文献,搜索用时 78 毫秒
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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。 相似文献
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表面活性素(surfactin)是一类由革兰氏阳性的枯草芽孢杆菌产生的脂肽(lipopeptide)型生物表面活性剂,因其具有优于化学合成表面活性剂的若干优点,如低毒性、高生物降解性、更好的环境相容性,且在极端环境下稳定性好,在提高石油采收率方面有较好的应用潜力,但是目前只有少数的生物表面活性剂可以大规模生产实现工业化应用。本文介绍了surfactin生物表面活性剂的化学结构和生物合成机制,并对其发酵生产过程的影响因素进行分析,为提高其生产经济性探索不同的策略,例如使用更便宜的原材料、优化培养基组分、优化反应器等,系统论述了surfactin生物表面活性剂的驱油机理和其与化学合成表面活性剂的复配研究,同时针对其应用时的不足之处提出研究新思路。 相似文献
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刘军海 《中国洗涤用品工业》2008,(3):45-46
用丙烯酸酯法合成了N-十二烷基-β-氨基丙酸型两性表面活性剂,并介绍了合成该类表面活性剂的一些其他方法,同时将该表面活性剂应用于洗涤剂配方中测试了其应用性能。 相似文献
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作为捕收剂使用的表面活性剂在矿物加工中是最重要的浮选药剂。它们分为含硫表面活性剂和不含硫表面活性剂,分别用于硫化矿和非硫化矿的浮选。本文回顾了表面活性剂在矿物浮选发展中的地位和作用,介绍了表面活性剂在浮选工作中的应用现状以及表面活性剂的性质对其浮选性能的影响。 相似文献
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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。 相似文献
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The objective of this review is to outline the beneficial role of surfactants as corrosion inhibitors in the petroleum field. After an introduction and brief notes on fundamentals of surfactants, the article shows the most important corrosion problems in the oil industry and the effective role of surfactants to solve these problems. The reported mechanisms of corrosion inhibition by surfactants are also considered. Key results are extracted from publications covering the past 50 years. 相似文献
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Dembitsky VM 《Lipids》2004,39(10):933-953
Alkyl and fatty acid glycosides have become of great commercial interest in general and specifically for the pharmaceutical,
cosmetic, and food industries. Natural surfactants are good sources for future chemical preparation of these glycosides. This
review article shows an astonishing diversity of natural surfactants that could be used in laboratories and industry. More
than 250 natural surfactants, including their chemical structures and biological activities, are described in this review
article. 相似文献
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Fu Han Yun-yun Deng Ya-wen Zhou Bao-cai Xu 《Journal of surfactants and detergents》2012,15(2):123-129
Silicone surfactants have been widely used in our daily life and many industrial fields on the basis of their unusual properties.
Only in the past decades has the use of silicone as a hydrophobic building block for the preparation of surfactants become
common. The recent trend to combine silicone, polyoxyalkylene and carbohydrate moieties in the same molecule has resulted
in a plethora of new compounds with new properties. The generic structure and surface activity of silicone surfactants are
reviewed in this article. Especially, the preparation, properties and application of carbohydrate-modified silicone surfactants
such as glucosamide-containing and glycoside-containing silicone surfactants are described in detail. In addition, the future
development of silicone surfactants is discussed. 相似文献
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Ming Zhou Yiping Chen Jiaxi Zou Juncheng Bu 《Journal of surfactants and detergents》2018,21(4):443-453
Sulfonated Gemini surfactants are a relatively new class of anion surfactants, composed of 2 or more sulfonated surfactant monomers connected by a spacer at or near the head groups through a covalent bond. In general, the sulfonated Gemini surfactants show better properties compared to conventional anionic surfactants including better surface activity, a lower critical micelle concentration, enhanced detergency, excellent compatibility with other surfactants, and better solubility in high ionic strength systems. This article reviews the synthesis of the sulfonated Gemini surfactants using different raw materials. Based on the existing information in the literature, new ideas are proposed for the synthesis and application of the sulfonated Gemini surfactants. 相似文献
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Dembitsky VM 《Lipids》2005,40(7):641-660
FA amide glycosides are of great interest, especially for the medicinal and pharmaceutical industries. These biologically
active natural surfactants are good prospects for future chemical preparation of compounds useful as antibiotics, anticancer
agents, or for industry. More than 200 unusual and interesting natural surfactants, including their chemical structures and
biological activities, are described in this review article.
For previous article in this series see Reference 1. 相似文献
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Ana B. Moldes Lorena Rodríguez-Lpez Myriam Rincn-Fontn Alejandro Lpez-Prieto Xanel Vecino Jos M. Cruz 《International journal of molecular sciences》2021,22(5)
This article includes an updated review of the classification, uses and side effects of surfactants for their application in the cosmetic, personal care and pharmaceutical industries. Based on their origin and composition, surfactants can be divided into three different categories: (i) synthetic surfactants; (ii) bio-based surfactants; and (iii) microbial biosurfactants. The first group is the most widespread and cost-effective. It is composed of surfactants, which are synthetically produced, using non-renewable sources, with a final structure that is different from the natural components of living cells. The second category comprises surfactants of intermediate biocompatibility, usually produced by chemical synthesis but integrating fats, sugars or amino acids obtained from renewable sources into their structure. Finally, the third group of surfactants, designated as microbial biosurfactants, are considered the most biocompatible and eco-friendly, as they are produced by living cells, mostly bacteria and yeasts, without the intermediation of organic synthesis. Based on the information included in this review it would be interesting for cosmetic, personal care and pharmaceutical industries to consider microbial biosurfactants as a group apart from surfactants, needing specific regulations, as they are less toxic and more biocompatible than chemical surfactants having formulations that are more biocompatible and greener. 相似文献