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采用氟烯烃与丙烯酸酯共聚的方法合成了氟含量(质量分数)分别为20%,35%的氟碳树脂,采用含氟丙烯酸酯直接共聚的方法合成了氟含量为50%的氟碳树脂。采用傅里叶变换红外光谱分析氟含量为20%和35%的氟碳树脂结构,结果表明合成的这两种氟碳树脂中含有氟基团;采用椭偏仪测试了树脂的折射率,结果表明3种氟碳树脂的折射率均低于丙烯酸树脂,氟含量为20%和35%的氟碳树脂的折射率相差不大,而氟含量为50%的氟碳树脂的折射率相对较高;采用X射线光电子能谱仪分析了3种氟碳树脂涂覆膜正反面的氟元素分布情况,结果表明随着氟含量的增加,膜正面氟含量逐渐增加至饱和,继续增加氟含量只会增加膜反面的氟含量;最后分别测试了树脂的抗污性能和附着力,结果表明氟含量为20%及35%的氟碳树脂在具有较低折射率的同时兼具良好的附着力及抗污性能。 相似文献
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氟碳粉末涂料种类与性能关系浅述 总被引:3,自引:0,他引:3
简要介绍了我国粉末涂料的发展现状、重点介绍了氟碳粉末涂料的种类和发展,概述了热塑性和热固性氟碳粉末涂料性能,对两类氟碳粉末涂料做了各种性能比较,简单介绍了两类氟碳粉末涂料在工业领域的应用。 相似文献
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玻璃钢复合材料基体树脂的发展现状 总被引:8,自引:4,他引:8
本文主要介绍玻璃钢复合材料基体树脂近几年发展情况,介绍基体树脂改性和应用,主要包括:不饱和聚酯树脂、环氧树脂、乙烯基酯树脂、酚醛树脂,还简单介绍了热塑性基体树脂及应用。 相似文献
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概述了植物油基树脂制备方法与原理,讨论了植物油基环保树脂的优势及存在的缺陷。此外,还介绍了植物油基环保树脂在零溶剂或低溶剂树脂、高固体分树脂、水性树脂以及紫外光固化树脂方面的最新研究成果,并分析了植物油基环保型树脂的发展趋势。 相似文献
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环氧丙烯酸树脂合成条件的优化 总被引:1,自引:0,他引:1
用双酚A环氧树脂与丙烯酸反应合成环氧丙烯酸树脂。利用正交试验研究了反应温度、催化剂种类和用量、阻聚剂用量对合成反应的影响,得到了合成反应的优化条件。用FTIR对环氧树脂和合成的环氧丙烯酸树脂的结构进行了表征。 相似文献
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The degree of resin cure achievable in urea formaldehyde (UF) resin is known to influence the hydrolytic stability of UF resin. In the current study, a significant difference in water extractable resin components has been observed between cured pure resin and that from medium density fiberboard (MDF) panels. Results show some 50 to 70% of resin components may be removed on water extraction from resinated MDF fiber and panel samples. In contrast, cured pure UF resins have only a small fraction of resin mass extractable into water with nitrogen-containing components remaining incorporated into the cured resin. The relatively high resin mass losses from panel material together with loss of nitrogen-containing components suggest not only free urea, but urea-methylene species are labile and readily extractable into water. Wax contributes to differing panel extractability when pressed at either 100 or 160°C, whereas panel resin loading has a significant effect on extractable resin components. A lower resin loading led to relatively greater resin extractability, which was corroborated by the extractability of resin-fiber mixtures up to 50% resin content. An assessment of extracted panel residues suggests a relative decrease of urea and urea-formaldehyde condensation products after water extraction. With UF resin highly mobile on fiber during MDF manufacture, the results suggest resin components may separate, leading to their incomplete incorporation into a cured, cross-linked UF resin matrix, with an implication that resin cure on fiber may not be complete compared to that found with pure resin. 相似文献