共查询到19条相似文献,搜索用时 109 毫秒
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二环戊二烯双酚型环氧树脂及环氧酯漆的合成研究 总被引:2,自引:0,他引:2
本文用二环戊二烯和苯酚合成二环戊二烯双酚,再用它与环氧氯丙烷合成二环戊二烯双酚型环氧树脂,并用这种环氧树脂与亚麻油酸合成气干型环氧酯漆,测试了漆膜的性能。实验证明,适当的酚超量和较低的滴加二环戊二烯的反应温度可控制二环戊二烯的自聚反应。 相似文献
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用环戊二烯和顺丁烯二酸酐代替苯酐合成半干性油气干型醇酸树脂漆,明显地提高了漆膜的实干性,硬度,开发了应用石油化工副产品C5组份环戊二烯(二环戊二烯)的新方法,并可以用半干性油合成气干性好的醇酸树脂漆。 相似文献
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本文概述了以二环戊二烯及其衍生物为基础的脂环/芳香族环氧树树研究与开发近况;并介绍了这些树脂的主要特性及其在电子工业中的一些应用。 相似文献
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高强度丙烯酸酯双面压敏胶带的研制 总被引:5,自引:2,他引:3
介绍了一种高强度丙烯酸酯双面压敏胶带的制备和性能。选用了一种新的功能单体二环戊二烯马来酸酯(DHCM)参与丙烯酸酯共聚,讨论了丙烯酸树脂、增粘树脂、交联剂等双面压敏胶带性能的影响。该胶带能够满足汽车、冰箱等生产工艺要求。 相似文献
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Tannin, a natural polymer belonging to the polyphenolic group of compounds, is widely used in the leather industry, specifically as a tanning agent for the conversion of putrescible collagen fibers into leather matrix during the leather‐manufacturing process. Unspent tannin poses a serious environmental threat to the public because it has a very high half‐life, leading to groundwater pollution when discharged into soil. Attempts have been made to separate tannins through chemical means and recovered tannin needs to be encapsulated for its safe disposal. In the present study the recovered tannin was impregnated in phenol–formaldehyde (PF) resin. Spectroscopic and thermogravimetric (IR, NMR, TGA and DSC) studies revealed that the modified polyphenol was held physically in the impregnate. The impregnated matrix showed resistance to mineral acids, strong alkalis and organic solvents and was tested for its adhesive property on leather sheets. The leather that bonded with PF‐modified polyphenol impregnate (PFT) had a 27% increase in peel strength and a 40% increase in lap shear strength as compared to the sample bonded with PF resin. The corrosive resistance result of the PFT resin shows it has potential application as an anticorrosive paint in the paint industry. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 1567–1571, 2001 相似文献
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路标漆用橡胶接枝丙烯酸树脂的制备 总被引:1,自引:1,他引:0
研制了路标漆用橡胶接枝丙烯酸树脂,以提高其耐磨性,由其配制路标漆的各项性能指标符合国标,介绍了该树脂及其路标漆的制法和性能指标。讨论了溶剂,橡胶用量,过氧化苯甲酰引发剂用量与加入方式,树脂的玻璃化温度对树脂和路标漆性能的影响。 相似文献
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气干性不饱和聚酯树脂的合成及其性能 总被引:2,自引:0,他引:2
讨论了阻聚剂(对苯二酚)的用量对不饱和聚酯树脂凝胶时间及贮存期的影响;同时使用了烯丙基醚基团(CH2=CH—CH2—O—)作为气干性基团,对传统不饱和聚酯树脂进行改性,讨论了烯丙基醚用量对不饱和聚酯树脂气干性的影响。实验结果表明,最佳对苯二酚用量为0 016%,烯丙基醚用量>20%。 相似文献