采用固体双酚A型环氧树脂与高分子量聚醚反应合成水性环氧树脂专用非离子型乳化剂,然后结合相反转技术制备水性环氧乳液.讨论了催化剂三氟化硼乙醚(BF3-乙醚)的用量对环氧树脂CYD011和聚乙二醇PEG6000反应体系环氧值的影响,并利用红外光谱和凝胶渗透色谱对合成乳化剂的结构进行表征,探讨了环氧树脂与PEG6000的摩尔比、乳化剂质量分数、乳化温度及不同分子量的环氧树脂对乳液性能的影响.结果表明,当环氧树脂的环氧当量为450 ～ 500,乳化温度为75℃、催化剂用量为0.40％、n(环氧树脂):n(PEG6000)=1:1、乳化剂质量分数为15％时,所制得的水性环氧乳液粒径小于1μm,稳定性高.由此乳液制备的涂料涂膜柔韧性为1mm,冲击强度为50 kg·cm,浸泡在质量分数为5％的NaCl溶液中17d完好,耐盐雾480 h完好.该乳液可应用于重防腐涂料.
参考文献
| [1] | PAN G R;WU L M;ZHANG Z Q et al.Synthesis and characterization of epoxy-aerylate composite latex[J].Journal of Applied Polymer Science,2002,83(08):1736-1743. |
| [2] | Sung PH;Lin CY .Polysiloxane modified epoxy polymer network .2. Dynamic mechanical behavior of multicomponent graft IPNs (epoxy/polysiloxane/polypropylene glycol)[J].European Polymer Journal,1997(3):231-233. |
| [3] | Zhaoying Zhang;Yuhui Huang;Bing Liao;Guangmin Cong .Studies of waterborne emulsion of chemically modified epoxy resin[J].Polymers for advanced technologies,2004(1/2):26-29. |
| [4] | BRIAND R;DUNCAN J A;FLORIOT Y et al.Two-part waterborne epoxy coating composition and method[P].US,2007/0224362,2007-09-27. |
| [5] | Almeida E;Santos D;Fragata F;de la Fuente D;Morcillo M .Anticorrosive painting for a wide spectrum of marine atmospheres: Environmental-friendly versus traditional paint systems[J].Progress in Organic Coatings: An International Review Journal,2006(1):11-22. |
| [6] | WEGMANN A .Novel waterborne epoxy resin emulsion[J].Journal of Coatings Technology,1993,65(827):27-34. |
| [7] | KOJIMA S;WATANABE Y .Development of high performance waterborne coatings.Part 1:Emulsification of epoxy resin[J].Polymer Engineering &Science,1993,33(05):253-259. |
| [8] | Mark D.Soucek;Ganghua Teng;Shaobing Wu .Cycloaliphatic Epoxide Crosslinkable Core-Shell Latexes: A New Strategy for Waterborne Epoxide Coatings[J].JCT,2001(921):117-125. |
| [9] | YANG Zhengzhong,XU Yuanze,WANG Shengjie,YU Hao,CAI Weizhen.PREPARATION OF WATERBORNE ULTRAFINE PARTICLES OF EPOXY RESIN BY PHASE INVERSION TECHNIQUE[J].高分子科学（英文版）,1997(01):92-96. |
| [10] | 施雪珍,陈铤,顾国芳.相反转法制备水性环氧乳液[J].涂料工业,2002(07):18-20. |
| [11] | 王进,杜宗良,李瑞霞,吴大诚.环氧树脂水基分散体系的相反转乳化[J].功能高分子学报,2000(02):141-144. |
| [12] | 陈永,杨树,袁金芳,高青雨.非离子型水性环氧树脂乳化剂的合成及特性研究[J].应用化工,2006(10):785-788. |
| [13] | BIRNBRICH P;THOMAS H J;SABBADINI G et al.Emulsifiers for epoxy resins[P].US,2009/0253860,2009-10-08. |
| [14] | 杨振忠;许元泽;赵得禄.制备高分子水基徽粒体系的相反转技术[J].高分子学报,1998(03):78-82. |
| [15] | 吕睿,张洪涛.窄分散大粒径交联聚苯乙烯功能微球的合成研究[J].功能高分子学报,2003(01):54-58. |
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%