通过环氧树脂改性以及多元醇内交联、六甲撑二异氰酸酯(HDI三聚体)交联改性、固化剂交联和紫外光交联等四重交联,并加入季戊四醇三丙烯酸酯(PETA)作为接枝化合物,合成了紫外光固化水性聚氨酯丙烯酸酯分散体(WPUD).研究了环氧树脂改性以及PETA含量对漆膜性能的影响.结果表明,经过环氧改性,采用2.5%的HDI三聚体和13.6%的PETA合成的水性聚氨酯丙烯酸酯分散体,其漆膜吸水率为6.3%,耐丙酮擦洗360次,摆杆硬度0.79.所得漆膜达到或超过了溶剂型紫外光固化涂料的要求.
参考文献
| [1] | Kim HD.;Kim TW. .Preparation and properties of UV-curable polyurethane acrylate ionomers[J].Journal of Applied Polymer Science,1998(13):2153-2162. |
| [2] | Zhiming Wang;Dongbo Gao;Jianwen Yang;Yonglie Chen .Synthesis and Characterization of UV-Curable Waterborne Polyurethane-Acrylate Ionomers for Coatings[J].Journal of Applied Polymer Science,1999(14):2869-2876. |
| [3] | TAUBER A;SCHERZER T;MEHNERT R .UV curing of aqueous polyurethane acrylate dispersions.A comparative study by real-time FTIR spectroscopy and pilot scale curing[J].Journal of Coatings Technology,2000,72(911):51-60. |
| [4] | Kim YB.;Kim HK.;Yoo JK.;Hong JW. .UV-curable polyurethane dispersion for cationic electrodeposition coating[J].Surface & Coatings Technology,2002(1):40-46. |
| [5] | Yang JW.;Wang ZM.;Zeng ZH.;Chen YL. .Chain-extended polyurethane-acrylate lonomer for UV-curable waterborne coatings[J].Journal of Applied Polymer Science,2002(10):1818-1831. |
| [6] | Anila Asif;Wenfang Shi .UV curable waterborne polyurethane acrylate dispersions based on hyperbranched aliphatic polyester: effect of molecular structure on physical and thermal properties[J].Polymers for advanced technologies,2004(11):669-675. |
| [7] | Bai CY;Zhang XY;Dai JB;Li WH .A new UV curable waterborne polyurethane: Effect of C=C content on the film properties[J].Progress in Organic Coatings: An International Review Journal,2006(3):291-295. |
| [8] | Kim BK;Ahn BU;Lee MH;Lee SK .Design and properties of UV cured polyurethane dispersions[J].Progress in Organic Coatings: An International Review Journal,2006(2):194-200. |
| [9] | 杨建文,曾兆华,陈用烈.丙烯酸树脂接枝聚氨酯光固化水性体系研究[J].材料研究学报,2000(01):109-112. |
| [10] | 杨建文,曾兆华,王志明,杨小毛,陈用烈.紫外光固化水性涂料的发展概况[J].信息记录材料,2001(01):32-35. |
| [11] | 杨建文,曾兆华,王志明,陈用烈.聚甲基丙烯酸酯改性聚氨酯光固化水性体系研究[J].应用化学,2001(08):631-635. |
| [12] | 沈效峰,郁建华.光交联型水性聚氨酯乳液的研究[J].聚氨酯工业,1998(02):9-12. |
| [13] | 虞浩,袁荞龙,王得宁,孔兰芳.紫外光固化水性聚氨酯丙烯酸酯分散液流变行为[J].合成橡胶工业,2004(03):168-171. |
| [14] | 韩仕甸,金养智.紫外光固化水性聚酯型聚氨酯丙烯酸酯的合成及性能[J].北京化工大学学报(自然科学版),2001(04):19-22. |
| [15] | 魏丹,叶代勇,黄洪,陈焕钦.多重交联紫外光固化水性聚氨酯涂料[J].涂料工业,2008(05):4-7. |
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%