以阳离子丙烯酸/醇酸树脂乳液、钛白粉、分散剂、增稠剂、消泡剂等原料制备一种阳离子丙烯酸/醇酸树脂水性涂料.主要研究了涂料的稳定性、流变行为、热性质、表面形貌和防腐性能,研究表明,分散剂用量为1．5％(质量分数)(占涂料总质量,下同),增稠剂用量为0．9％(质量分数)时,涂料的稳定性最好；在最佳稳定条件下,涂料的流变行为表明涂料具有触变性,有利于涂料的施工和贮存；热重分析表明,涂料的热分解温度为215．3℃,可适用于温度低于200℃的工业环境；防腐性能表明,涂料的腐蚀电流密度为1．076×10－4 A/cm2,具有240 h 的耐盐雾性能；原子力显微镜表明涂层表面粗糙度为3．893 nm,并呈现出纳米级的凹凸结构.
A cationic acrylic/alkyd resin coating was successfully prepared using cationic acrylic/alkyd resin e-mulsions,titanium dioxide,dispersant,thickener and defoamer as raw materials.The stability,rheological property,thermal property,surface morphology and anti-corrosion property of coating were characterized.The result suggested the stability of coating was best with dispersant dosage of 1.5wt% and thickener dosage of 0.9wt%.The result also showed the coating displayed good thixotropic property that favored to storage and bush coating.In addition,the coating could apply to industry under 200 ℃ with the degradation temperature at 5% weight loss of 2 1 5 .3 ℃.The anti-corrosion property test suggested the coating showed corrosion current of 1.076×10-4 A/cm2 and exposure in salt spray for 240 h.Meanwhile,the film also showed concavoconvex struc-ture with surface roughness of 3.893 nm.
参考文献
| [1] | 崔锦峰,李军,罗志河,盛永宁,李华明,陈碧碧,郭军红,周应萍,杨保平.醇酸-丙烯酸酯杂化乳液的制备及其性能研究[J].涂料工业,2013(03):58-62. |
| [2] | 赵其中,刘伟峰,时海峰.水性醇酸树脂及其涂料的发展现状[J].上海涂料,2011(02):21-22. |
| [3] | Mongi E;Ayman B M .Synthesis and properties of hybrid alkyd-acrylic dispersion and their use in VOC-free water-borne coating[J].Progress in organic Coatings,2013,3274(2):1-8. |
| [4] | 刘迎新,曾力华,徐伟箭.自干型改性水溶性醇酸树脂的研制[J].现代涂料与涂装,2006(06):4-6. |
| [5] | Weissenborn PK.;Motiejauskaite A. .Emulsification, drying and film formation of alkyd emulsions[J].Progress in Organic Coatings: An International Review Journal,2000(1/4):253-266. |
| [6] | 李晴龙,沈一丁,费贵强,王海花,陈宗明.KH550交联改性无溶剂聚氨酯/丙烯酸酯乳液的合成应用[J].功能材料,2013(18):2706-2709,2714. |
| [7] | 刘峰,王国建,刘琳.水分散性醇酸树脂的研究[J].材料工程,2006(04):12-15,36. |
| [8] | 唐文华,张艾飞,邹洪涛,刘华,刘吉平,吕广庶.载气种类对单壁碳纳米管管径的影响研究[J].功能材料,2006(04):639-641,645. |
| [9] | 余葆莉,张志焜.锐钛矿型纳米级TiO2改性内墙乳胶漆的性能研究[J].功能材料,2005(11):1750-1752. |
| [10] | 蔡玲.改性水性醇酸树脂的合成及底漆的制备[J].涂料工业,2005(09):39-40. |
| [11] | Liu Hua;Chen Chunlin;Zhang Huaijun.Air dry water-borne alkyd resin and primer[J].Paint &Coating Indus-try,1993(3):9-14. |
| [12] | 周克尧.水性金属闪光漆的流变行为控制[J].上海涂料,2013(07):12-15. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%