以异佛尔酮二异氰酸酯(IPDI)、聚己二酸乙二醇酯(721)、聚四氢呋喃二醇(PTHF)为基本原料,以2,2-二羟甲基丙酸(DMPA)和磺酸盐(HSJ)为亲水扩链剂,采用自乳化和外乳化相结合的方法合成阴离子型高固含水性聚氨酯乳液；考察了R值、聚酯/聚醚(-OH物质的量)比、DMPA、磺酸扩链剂和外乳化剂用量对乳液性能的影响.结果表明:R值为1.4,聚酯/聚醚(-OH物质的量)比为2∶1,DMPA用量为1.6％,磺酸扩链剂为0.25％,外乳化剂用量为1.6％时,合成的乳液固含量可高达55％,黏度低,力学性能优异.
参考文献
| [1] | 许戈文.水性聚氨酯材料[M].北京:化学工业出版社,2006 |
| [2] | Lee, S.K.;Kim, B.K. .High solid and high stability waterborne polyurethanes via ionic groups in soft segments and chain termini[J].Journal of Colloid and Interface Science,2009(1):208-214. |
| [3] | 颜志鸿,徐强,朱宏,王晓鸣,胡春圃.制备高固含量水性聚氨酯乳液的影响因素[J].合成橡胶工业,2007(02):93-96. |
| [4] | Lee, S.K.;Kim, B.K. .High solid and high stability waterborne polyurethanes via ionic groups in soft segments and chain termini[J].Journal of Colloid and Interface Science,2009(1):208-214. |
| [5] | Tian HuaFeng;Wang YiXiang;Zhang Lina;Quan ChangYun;Zhang XianZheng .Improved flexibility and water resistance of soy protein thermoplastics containing waterborne polyurethane.[J].Industrial Crops and Products,2010(1):13-20. |
| [6] | Meng, QB;Lee, SI;Nah, C;Lee, YS .Preparation of waterborne polyurethanes using an amphiphilic diol for breathable waterproof textile coatings[J].Progress in Organic Coatings: An International Review Journal,2009(4):382-386. |
| [7] | Jung, D.H.;Kim, E.Y.;Kang, Y.S.;Kim, B.K. .High solid and high performance UV cured waterborne polyurethanes[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2010(1/3):58-63. |
| [8] | DA-KONG LEE;HONG-BING TSAI.Aqueous polyurethane dispersions derived from polyearbonatediols[J].Journal of Applied Polymer Science,2004(94):1723-1729. |
| [9] | 巫淼鑫,杜郢,杨阳,王刚,姚致远,高山.红外光谱法测定聚氨酯预聚体中异氰酸酯基含量[J].涂料工业,2010(07):69-72. |
| [10] | 王世荣;李祥高.表面活性剂化学[M].北京:化学工业出版社,2005 |
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%