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51.
V. Shukla M. Singh D. K. Singh Ri Shukla 《Surface Coatings International Part B: Coatings Transactions》2005,88(3):217-220
Summary Over the past few years, the challenges of globalisation, consolidation and economical point of view have meant that manufacturers
of epoxy formulations have to constantly improve their capability to meet the needs of customers. An active area for advancement
is that of epoxy and polyamide resin with castor oil. Generally, people working in the coating industries are familiar with
castor oil, but this paper provides information on the new use of castor oil in epoxy and polyamide resin. This novel product
(castor oil-modified epoxy resin/castor oil-modified polyamide) provides a previously unattainable combination and improved
flexibility and toughness to a variety of ambient cure applications. This communication will review the performance of these
castor oil-modified epoxy and polyamide resin surface coatings and adhesives. Based on the results of this study, these systems
offer some advantages without much affecting the traditional properties of epoxy and polyamide resin in a variety of applications. 相似文献
52.
53.
采用脂环族环氧树脂、柔韧性环氧树脂、改性脂环胺类固化剂为主要原料,研制出户外像素管灌注软胶,产品具有耐紫外线辐照、耐冷热冲击、粘接性好等特点。介绍其制备方法、性能及用。 相似文献
54.
四官能环氧树脂的合成以及在覆铜板中的应用 总被引:1,自引:0,他引:1
对四官能环氧树脂[1,1,2,2-四(对羟基苯基)乙烷四缩水甘油醚]的合成与改性及在覆铜板中的应用作了初步探讨,并对其屏蔽紫外线与产生荧光的机理作用作了简单阐述。 相似文献
55.
以丙烯酸酯-叔碳酸乙烯酯共聚乳液为基料生产的天然石漆,具有形象逼真、不褪色、耐水耐碱性好、抗紫外线辐射性强等特点。 相似文献
56.
57.
Zinc Coated Steel/Epoxy Adhesive Systems: Investigation of the Interfacial Zone by FTIR Spectroscopy
The present study takes advantage of the ability of Fourier Transform Infrared Spectroscopy (FTIR) for the analysis of ultrathin organic films on metals. FTIR in the reflection mode (IRRAS) is used in order to study the interaction of ultrathin films of dicyandiamide (hardener of most one-pack epoxy resins) with various substrates, model ones such as gold or zinc and industrial ones such as steel and zinc-coated steels.
Pure zinc surfaces and, to a lesser extent, zinc-coated steels are shown to react with dicyandiamide after heating at 180°C, as evidenced by the frequency shift of the absorption band (at about 2200 cm-1) characteristic for nitrile groups. As real systems consist of thick layers of a fully formulated adhesive cured onto a metallic substrate, the direct investigation of such a buried interphase is no longer possible by FTIR and by most of the known spectroscopies. Some mechanically tested specimens are then analysed, after failure, by FTIR microspectrometry. The spectra obtained, corresponding to the fracture initiation zone which is about 100 μm in diameter, advocate for the presence of an ultrathin layer of modified polymer still covering the substrate. 相似文献
Pure zinc surfaces and, to a lesser extent, zinc-coated steels are shown to react with dicyandiamide after heating at 180°C, as evidenced by the frequency shift of the absorption band (at about 2200 cm-1) characteristic for nitrile groups. As real systems consist of thick layers of a fully formulated adhesive cured onto a metallic substrate, the direct investigation of such a buried interphase is no longer possible by FTIR and by most of the known spectroscopies. Some mechanically tested specimens are then analysed, after failure, by FTIR microspectrometry. The spectra obtained, corresponding to the fracture initiation zone which is about 100 μm in diameter, advocate for the presence of an ultrathin layer of modified polymer still covering the substrate. 相似文献
58.
59.
纳米碳酸钙在涂料中的应用研究 总被引:3,自引:0,他引:3
探究纳米碳酸钙先在溶剂中分散再与树脂进行调配的方法。利用正交设计法对其中高速搅拌法进行优惠条件实验,发现搅拌时间并非越长越好,优惠条件下涂料中纳米碳酸钙分散到原始粒径,涂料质量有较大提高。 相似文献
60.