以3,6-二氧杂-1,8-辛烷二硫醇(BOODT)与异氰酸酯后扩链制备端羟基聚丁二烯(HT-PB)型水性聚氨酯(WPUHS)分散液,再在紫外光照射下通过硫醇与双键的反应对水性聚氨酯分散液进行交联改性.研究了HTPB含量对分散液的稳定性、WPUHS的耐水性及力学性能的影响.结果表明:当HTPB含量约为4％时,分散液的粒径、WPUHS的耐水性及力学性能相对较好.同时探讨了交联改性中光引发剂种类及光照时间对胶膜交联密度及力学性能的影响,结果表明:安息香二甲醚为引发剂时,交联后胶膜的交联密度及力学性能较优;且光照时间为1h时胶膜力学性能最优.
参考文献
| [1] | 陈建兵;王宇;王武生;曾俊.聚丁二烯二醇改性水基聚氨酯分散体合成研究[J].皮革化工,2007(3):24-28. |
| [2] | 牛振斌;张兴元;戴家兵;张和平.基于HTPB的可紫外光固化聚氨酯丙烯酸酯水性体系的研究[J].高分子材料科学与工程,2006(3):199-203. |
| [3] | Yang, ZL;Wicks, DA;Yuan, JJ;Pu, HT;Liu, YS.Newly UV-curable polyurethane coatings prepared by multifunctional thiol- and ene-terminated polyurethane aqueous dispersions: Photopolymerization properties[J].Polymer: The International Journal for the Science and Technology of Polymers,20107(7):1572-1577. |
| [4] | 付长清;陈樟;乔永洛;陈义旺;申亮.蓖麻油改性巯基-烯UV固化水性聚氨酯分散体的制备[J].涂料工业,2012(10):37-40,44. |
| [5] | Tan, Jiaojun;Li, Chunmei;Li, Hui;Zhang, Hao;Gu, Junwei;Zhang, Baoliang;Zhang, Qiuyu.Water-borne thiol-isocyanate click chemistry in microfluidics: rapid and energy-efficient preparation of uniform particles[J].Polymer chemistry,201524(24):4366-4373. |
| [6] | Kuypers, Soren;Pramanik, Sumit Kumar;D'Olieslaeger, Lien;Reekmans, Gunter;Peters, Martijn;D'Haen, Jan;Vanderzande, Dirk;Junkers, Thomas;Adriaensens, Peter;Ethirajan, Anitha.Interfacial thiol-isocyanate reactions for functional nanocarriers: a facile route towards tunable morphologies and hydrophilic payload encapsulation[J].Chemical communications,201587(87):15858-15861. |
| [7] | Yu, Lei;Wang, Long-Hai;Hu, Zong-Tao;You, Ye-Zi;Wu, De-Cheng;Hong, Chun-Yan.Sequential Michael addition thiol-ene and radical-mediated thiol-ene reactions in one-pot produced sequence-ordered polymers[J].Polymer chemistry,20159(9):1527-1532. |
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%