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表面活性剂在皮革工业中的应用已经渗透到各个工序,在很大程度上影响着成革的品质和性能。本文就制革的每个工序所用表面活性剂进行了介绍,并对皮革用表面活性剂的发展提出若干建议。 相似文献
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表面活性剂在皮革生产中的应用 总被引:2,自引:0,他引:2
从生皮组织构造特点和皮革工艺要求出发,讨论了表面活性剂在皮革生产各工序中的作用和各工序对所有表面活性剂的性能要求,为皮革生产中正确选择和使用表面活性剂提供依据。 相似文献
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简要介绍了非离子表面活性剂的分类,较详细地叙述了常用非离子表面活性剂的乳化性能、润湿性能和配伍性能等相关性能,综述了非离子表面活性剂在制革工业准备工序、鞣制工序以及整饰工序中的作用与功能。 相似文献
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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。 相似文献
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造纸化学品氟表面活性剂性能介绍 总被引:1,自引:0,他引:1
《有机硅氟资讯》2006,(1):28-29
普通表面活性剂分子中碳氢链中的氢原子部分或全部用氟原子取代,就成为氟表面活性剂,从而具有许多普通表面活性剂不具有或者更优的性能,引起了人们普遍的重视,显示出越来越强的生命力,广泛应用于消防、化工、农药、选矿、造纸、皮革、纺织等各个领域。 相似文献
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磷酸酯类表面活性剂的合成及其在皮革加脂中的应用 总被引:1,自引:0,他引:1
磷酸酯类表面活性剂是分子中含磷酸酯基或磷酸酯盐这类亲水基的表面活性剂的统称。简述了磷酸酯类表面活性剂的性能特点,详细综述了磷酸酯类表面活性剂的各种合成方法,并比较了各方法的优缺点,对其在皮革加脂中的应用进行了介绍,最后对其研究前景进行了展望。 相似文献
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氟表面活性剂的工业应用 总被引:1,自引:0,他引:1
介绍了氟表面活性剂的分类、结构及性质;主要综述了由于氟表面活性剂具有"三高"、"两憎"的独特性能,广泛应用于消防、皮革、石油、造纸、纺织印染及金属材料加工等工业领域,起到普通碳氢表面活性剂所不能的作用;指出了根据应用领域的不同,应从分子结构设计入手,有针对性地、有目的地研发氟表面活性剂新品种新工艺,拓展应用领域,注重氟表面活性剂与普通表面活性剂的复配研究。 相似文献
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El-Shahat H. A. Nashy M. G. Megahed M. A. Abd EL-Ghaffar 《Journal of the American Oil Chemists' Society》2011,88(8):1239-1246
Jojoba oil is of immense importance for industrial applications. There are a lot of published articles concerning its various
uses in cosmetics, detergents, surfactants and lubricants. Therefore, this work was devoted to exploring its application for
further use in the leather industry as a fat-liquoring agent. The fat-liquoring process is one important step in leather manufacturing,
with the intention of obtaining leather of full, soft handle, flexibility, and pliability as well as improving its mechanical
properties. The study involved preparation of jojoba fat-liquor via a sulfitation process. An improvement of the sulfitation
process based on combined SO3 content was achieved under phase transfer catalysis (PTC). Two differently prepared types of phase transfer catalyst of phosphonium
and ammonium types were investigated, namely, benzyl tri-phenyl phosphonium chloride (BTPP) and tri-ethyl benzyl ammonium
chloride (TEBA). The fat-liquored leather led to an improvement in its mechanical properties such as tensile strength and
elongation at break. In addition, a significant enhancement of the texture of the treated leather by jojoba fat-liquor as
indicated in the scanning electron microscope (SEM) images was observed. 相似文献
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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 相似文献
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A series of polyethylene glycol-linked Gemini fatty alcohol phosphate surfactants (GFAP) were prepared with long chain n-alkanol (C = 8, 12, 16, 18), polyethylene glycol (PEG-200, PEG-400, PEG-600, PEG-800, PEG-1000) and phosphorus oxychloride (POCl3). The structure of the prepared surfactants was characterized by Fourier transform infrared spectrometer (FT-IR). The surfactants were employed for the modification of chrome-tanned leather. The morphological changes of chrome-tanned leather and modified chrome-tanned leather were observed by scanning electron microscopy (SEM). The relationship between the alkyl chain length and molecular weight of the PEG and the hydrophobicity, softness, mechanical strength of modified chrome-tanned leather was also discussed. The experimental results showed that the mechanical strength and softness of modified chrome-tanned leather were enhanced with an increase of alkyl chain length, while the hydrophobicity, mechanical strength and softness were decreased with an increase of molecular weight of the PEG. The hydrophobicity, mechanical strength and softness of modified chrome-tanned leather were optimized for an alkyl chain length of 16. Therefore, 16–200 Gemini phosphate surfactants with an alkyl chain length of 16 and a PEG molecular weight of 200 have a good comprehensive modification effect on Chrome-tanned leather, the tensile strength, tear strength and softness of modified chrome-tanned leather are 57.07 N mm−2, 79.49 N mm−1, 9.73 mm, respectively. 相似文献
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Edward M. Filachione 《Journal of the American Oil Chemists' Society》1971,48(7):334-339
There are about 25 operations in the process of converting hides and skins into leather. Surface active agents are important
in a number of these and find wide use in the leather-making industry. Both anionic and nonionic types are widely used while
cationics have more specialized use. Sulfated oils (especially cod, sperm and neatsfoot), soaps, sulfated higher alcohols
and alkylbenzene sulfonates are the main anionic surfactants used. The nonionics are principally condensation products of
ethylene oxide with a secondary alcohol of 11–15 carbons or with octyl and nonyl phenol, introducing 7–10 oxyethylene units.
Examples of the cationic type are the quaternary ammonium salts, i.e., lauryl, cetyl and stearyl dimethyl benzyl ammonium
chloride. Surface active agents are used at various stages of the leather-making process. They are used in soaking, unhairing,
bating, pickling, tanning and coloring, where they serve principally as processing aids. They find more important use in fatliquoring,
impregnation and finishing, where they become a part of the leather composition. Certain surfactants, namely, chrome complexes
of fatty acids and perfluoro acids, and long chain alkenyl succinic acid have been used to impart water repellent properties
to leather. Recent research shows promise of developing new uses for surfactants in the tanning industry. Long chain quarternary
ammonium salts have shown promise as a short term preservative for freshly flayed hides and skins. An amphoteric surfactant,
i.e., a long chain fatty amino acid of the structure RNHCH2CH2CO2H, has shown promise as leather lubricant with improved resistance to drycleaning solvents.
One of eight papers to be published from the Symposium “Surface Active Agents in the Textile Industry.”
E. Market. Nutr. Res. Div., ARS, USDA. 相似文献