共查询到18条相似文献,搜索用时 78 毫秒
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通过对高模数无机硅酸盐进行改性,使无机富锌底漆的质量与施工使用得到改善与提高,实现了水性富锌底漆与溶剂型富锌环氧底漆施工使用同样方便,性能更好,尤其是产品的环保性能和良好的防腐性能。 相似文献
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高锌粉含量的单组分环氧富锌底漆的研制 总被引:2,自引:0,他引:2
以自制的改性环氧树脂为基料,锌粉为防锈颜料,制备出干膜中锌粉含量达96%以上的单组分环氧富锌底漆。同时考察了影响漆膜防腐蚀性能和涂料贮存稳定性的因素。实验表明:锌粉的含量在95%~97%时,漆膜的防腐蚀效果最好,经过1 000 h的耐盐雾试验后,漆膜保持完好;采用0.2%有机膨润土和1%聚酰胺蜡搭配使用,有效地解决了单组分环氧富锌底漆中锌粉沉降结块的问题,根据实验结果得到最佳单组分环氧富锌底漆配方,同国外同类型的产品相比具有更好的性价比。漆膜性能优异,VOC含量较低,环保性能好。 相似文献
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C. A. Giúdice J. C. Benítez A. M. Pereyra 《Journal of Coatings Technology and Research》2004,1(4):291-304
The objective of this work was to gain a deeper insight into the behavior of zinc primer, containing either lamellar zinc
alone or lamellar zinc mixed with an extender by means of accelerated tests in salt spray (fog) chamber and a 100% relative
humidity cabinet. Mica, kaolin, and synthetic calcium silicate were used as extenders.
Several series of coatings were designed and manufactured employing the following binders: 20 cP chlorinated rubber, a vinyl
copolymer, an unsaturated polymer, or an epoxy resin.
A simultaneous analysis of the experimental data was performed taking into account that the best performance is attained at
pigment volume concentration (PVC) values equal to or slightly lower than the critical one (CPVC). Results indicate that for
every lamellar zinc primer, it is possible to select an extender of high oil absorption as the spacer of the zinc particles
attaining both very good blistering resistance and anticorrosive performance. 相似文献
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介绍了无机硅酸锌预涂底漆成膜机理、硅酸乙酯水解、改性及主剂的制备。通过对硅酸乙酯改性,增加了无机硅酸锌预涂底漆漆膜的柔韧性;采用耐盐雾实验选择了防锈颜料磷酸锌、B-004磷铁粉及5%的锌粉添加量;通过对比无机硅酸预涂底漆的施工性、耐盐雾性及储存稳定性,确定了聚乙烯缩丁醛树脂液的加量,选用了HX-8800和BYK-420作为产品防沉剂,调整溶剂体系添加1%CB溶剂控制漆膜干燥速度,并最终确定了产品配方。此产品满足流水线自动喷涂工艺,干燥时间短、防锈性能好、可与多种面漆配套使用,并且不影响焊接和切割。 相似文献