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本文论述的聚氨酯弹性涂料包括地下钢筋混凝土油罐耐油抗渗涂料,塑胶跑道铺面材料和弹性有机硅聚氨酯涂料,着重介绍了其组成配方,制备方法,施工工艺以及应用情况。 相似文献
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《化学推进剂与高分子材料》2016,(2)
简述了阻隔防爆材料分类和基本性能要求,试验测定了目前铝合金、聚氨酯泡沫、球形非金属等3大类阻隔防爆材料的滞留率、置换率、有效容积降低率;并对当前最有开发前途的球形非金属阻隔防爆材料的压缩强度和体积电阻率进行了测试。结果表明:目前聚氨酯泡沫阻隔防爆材料对油罐有效容积影响最大,降低率最大为6.7%,其次是球形非金属材料为5.6%,铝合金材料为3.3%;球形非金属材料的压缩强度超过10 MPa,体积电阻值远小于1.0×1012Ω·cm,在油箱油罐填充使用中不会塌陷和引起静电积累,可以很安全地在油箱油罐中填充使用。 相似文献
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美军当前拥有大量织物增强的弹性体油罐用于野外储存燃料和别的液体,这些罐的容量从400L于80万L。软体油罐必须有能力满足在极其苛刻的条件下长期储存碳氢系燃料如喷气燃料、柴油和汽油的要求。应用于软体油罐胶层的弹性体通常是聚酯型聚氨酯弹性体。聚酯型聚氨酯具有优异的耐油性和耐磨性,但它的耐水性和耐紫外线辐射能力不太好。通常通过添加防护助剂来防止胶料受到以上各种破坏。 相似文献
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综述了油罐内壁防腐涂料的特点及研究现状,其中包括环氧树脂涂料,聚氨酯涂料等,并对其发展趋势进行了分析。 相似文献
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采用双面涂覆热熔性聚醚型聚氨酯(TPU)涂层织物和高频焊接技术研制了变压器用TPU软体运油罐。结果表明,该型罐体吊运方便,具有可折叠性,而且折叠体积小,易存放,已获国家知识产权专利。 相似文献
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Traditional multilayer epoxy/polyurethane type anticorrosive paint systems are widely employed in the protection of steel structures due to their high efficiency against atmospheric corrosion. However, the use of isocyanate in the curing process, and the high volatile organic compound (VOC) content of such systems, makes it necessary to search for new isocyanate-free paints. 相似文献
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叙述了冰箱门体塑料件喷涂双组分聚氨酯漆的工艺,实践证明脂肪族聚氨酯漆具有优异的耐化学性和良好的机械性能。通过调整漆与固化剂比例,讨论了固化时间对漆膜硬度的影响,同时论述了喷涂过程中产生的缺陷和采取的措施。 相似文献
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Though blending polymers to obtain high performance materials is an old practice, the new trend in such an approach is the
emergence of interpenetrating polymer networks (IPNs) as binders for protective coatings with improved properties. In this
study, one ambient curing IPN-type polymer alloy developed out of epoxy and acrylic polyurethane systems as a high performing
binder was formulated into paints and evaluated in comparison with the currently used conventional epoxy polyamide and polyurethane
systems. A three-coat system consisting of a zinc phosphate primer, a micaceous iron oxide (MIO) undercoat, and a topcoat
was formulated out of the IPN along with a similar system of epoxy primer, epoxy undercoat, and a PU topcoat. A two-coat system
of the same primer with an IPN clear topcoat and a similar system with epoxy has also been studied. All the systems were studied
under accelerated laboratory tests and field tests at a corrosive location. The results are reported and conclusions are drawn
in this article.
An erratum to this article can be found at 相似文献
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介绍了一种蓖麻油改性的环氧聚氨酯防腐蚀涂料.以蓖麻油改性异氰酸酯预聚物和环氧树脂为基料,以价格较为低廉的滑石粉、钛白粉、沉淀硫酸钡为颜填料制备了成本较低,性能较为优异的防腐蚀涂料.检测了优化条件下制备的涂料的性能.以蓖麻油改性环氧聚氨酯防腐蚀涂料和未经蓖麻油改性的环氧聚氨酯防腐蚀涂料进行防腐蚀性能对比,蓖麻油改性环氧聚氨酯防腐蚀涂料的耐酸、碱、盐水等防腐蚀性能更好. 相似文献
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