【摘要】：針對(duì)商用空調(diào)涂裝特點(diǎn),制備了一種涂層防銹性好、干燥速度快、初期耐水性優(yōu)良、可厚涂不流掛的水性雙組分環(huán)氧防腐底漆。闡述了其制備工藝與漆膜性能,并探討了主要成膜樹脂、環(huán)氧固化劑、觸變劑、防閃蝕助劑和顏料體積濃度(PVC)對(duì)涂膜性能的影響及作用機(jī)理。結(jié)果表明:選用水性環(huán)氧乳液樹脂PZ 3961制備防腐底漆A組分,采用自制的2種非離子胺類固化劑進(jìn)行復(fù)配作為B組分,A、B組分質(zhì)量比為8∶1時(shí),水性防腐底漆的綜合性能最佳;添加配方體系總質(zhì)量的0.5%~1.0%的防閃蝕劑,FA-579與10%亞硝酸鈉溶液質(zhì)量比為2∶1的混合液,能夠有效防止焊縫區(qū)和死角部位銹蝕的出現(xiàn);添加底漆體系配方總質(zhì)量的0.6%的有機(jī)膨潤土,可協(xié)助提升底漆體系的防沉淀效果,并實(shí)現(xiàn)厚涂不流掛。
[Abstract]:According to the characteristics of commercial air-conditioning coating, a kind of waterborne two-component epoxy anticorrosive primer with good rust resistance, fast drying speed, good initial water resistance and thick coating without flow hanging was prepared. The preparation technology and properties of paint film were described. The effects of main film forming resin, epoxy curing agent, thixotropic agent, anti-flashover agent and pigment volume concentration (PVC) on the performance of coating film were discussed and the mechanism of action was discussed. The results showed that the waterborne epoxy emulsion resin PZ 3961 was used to prepare component A of anticorrosive primer, and two kinds of non-ionic amine curing agents were used as component B, A, and the mass ratio of component B was 8: 1. The comprehensive performance of waterborne anticorrosive primer is the best; The addition of 0.5% / 1.0% anti-flashover inhibitor and 2:1 mixture of FA-579 and 10% sodium nitrite solution can effectively prevent the occurrence of corrosion in the weld zone and dead corner region, and the corrosion of the weld zone and the dead corner can be prevented effectively by adding the mixture of 0.5% and 1.0% of the total mass of the formulation system. Adding 0.6% of the total mass of organic bentonite to the primer system can help to improve the anti-precipitation effect of the primer system and realize the thick coating without flowing hanging.
【作者單位】： 廣州擎天材料科技有限公司;
【基金】：廣東省中國科學(xué)院全面戰(zhàn)略合作專項(xiàng)資金資助(201313091500074)
【分類號(hào)】：TB657.2;TQ637

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 李小萍;李靜;高穩(wěn)成;劉慧;;水性環(huán)氧防腐涂料的研究及展望[J];化工新型材料;2014年05期

2 張婷;王r，

本文編號(hào)：2438821