以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)、丙烯酸(AA)和双丙酮丙烯酰胺(DAAm)为共聚单体,采用半连续种子乳液聚合工艺,合成了具有核-壳结构的室温自交联水性聚丙烯酸酯乳液.以十二烷基硫酸钠(SDS)与辛基酚聚氧乙烯醚(OP-10)为复合乳化剂,研究了其用量对聚合反应稳定性的影响,讨论了不同DAAm用量下乳胶粒的粒径分布、漆膜耐水性和力学性能,确定了较佳的用量:复合乳化剂用量为单体质量的3.0%,w(DAAm)为4%.透射电镜(TEM)分析表明,乳胶粒具有明显的核-壳结构.热分析表明,以己二酰肼(ADH)为交联剂,交联后漆膜的玻璃化转变温度明显提高,红外光谱分析证明了酮肼交联反应的发生.
参考文献
[1] | Steward PA.;Wilkinson MC.;Hearn J. .An overview of polymer latex film formation and properties [Review][J].Advances in Colloid and Interface Science,2000(3):195-267. |
[2] | 王亚茹,陈文钦,马敬红,杨曙光,徐坚.水性室温自交联聚丙烯酸酯乳液的制备及性能[J].高分子材料科学与工程,2012(08):9-13. |
[3] | 唐黎明,张晓龙,金凤友.室温固化丙烯酸酯乳液涂料的研究[J].化学世界,2003(11):580-581. |
[4] | 邱义鹏,唐黎明,王浩.基于羧基和氮丙啶基的室温固化水性聚氨酯涂料[J].清华大学学报(自然科学版),2008(09):1490-1493. |
[5] | Coogan RG. .POST-CROSSLINKING OF WATER-BORNE URETHANES[J].Progress in Organic Coatings: An International Review Journal,1997(1/4):51-63. |
[6] | Mohammed S.;Sperling LH.;Klein A.;Elaasser MS.;Daniels ES. .ISOCYANATE-FUNCTIONALIZED LATEXES - FILM FORMATION AND TENSILE PROPERTIES[J].Journal of Applied Polymer Science,1997(10):1869-1884. |
[7] | Zhang JD;Yang MJ;Zhu YR;Yang H .Synthesis and characterization of crosslinkable latex with interpenetrating network structure based on polystyrene and polyacrylate[J].Polymer international,2006(8):951-960. |
[8] | 张继德,杨慕杰,贺全国,王吉清,苏伟.核/壳乳液聚合工艺中乳化剂的定量研究[J].高分子学报,2008(09):855-860. |
[9] | Nakayama Y .Development of novel aqueous coatings which meet the requirements of ecology-conscious society: novel cross-linking system based on the carbonyl-hydrazide reaction and its applications[J].Progress in Organic Coatings: An International Review Journal,2004(4):280-299. |
[10] | 罗春晖,瞿金清,陈焕钦.自交联封闭性乳液的合成与性能[J].化工学报,2009(07):1823-1830. |
[11] | 张庆思,朱晓丽,李俊英,李鹏,张江华,李宝海,高彦慧.聚氨酯水分散体交联剂的合成及结构表征[J].应用化学,2004(11):1123-1126. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%