以甲苯二异氰酸酯(TDI)、三羟甲基丙烷(TMP)为原料,采用金属离子催化聚合法合成了低游离TDI含量的聚氨酯固化剂.结果表明:自制的金属离子催化剂A101的催化效果最佳.合成的产品符合国家标准,残留TDI单体的含量小于0.5%.探讨了A101的催化机理,并计算了反应体系的活化能.计算表明:添加A101催化剂能够有效降低反应的活化能.
参考文献
| [1] | 刘庄励.应重视解决聚氨酯涂料中游离TDI的毒性问题[J].中国涂料,1999(04):17-18. |
| [2] | 于滨;高玉红 .气相色谱法测定聚氨酯涂料中的游离甲苯二异氰酸酯含量[J].涂料工业,1999,29(08):36-39. |
| [3] | JIANDING CHEN;JEAN PIERRE PASCAULT;MOHAMED TAHA.Systhesis of polyurethane oligomers based on polybutadiene polyol[J].Journal of Polymer Science Part A:Polymer Chemistry,1996(134):2889-2907. |
| [4] | FERNANDA.Kinetic study of the reaction between hudroxylated polybatadienes and isocyanates[J].Journal of Polymer Science Part A:Polymer Chemistry,1986(24):3021-3032. |
| [5] | RAJ DURAIRAJ;JASON BURCHIANTI;JOE dE ALMEIDA.Lower durometer TDI elastomers in extended"plasticizer free"[A].Toronto,Canada,2001:17-25. |
| [6] | S SUBRAMANI;YOUNG-JUN;YOUNG-SOO LEE.New development of polyureth-ane dispersion derived from blocked aromatic diisocyanate[J].Progress in Organic Coatings,2003(48):71-79. |
| [7] | KWEAN,DANG-KENCHE;DONG-SOO PARK;HYUN-JIN.Starch-palycaocalactone copoly-menzation using diisocyanate intermediates and thermal charecteristics of the coplymeis[J].Journal of Applied Polymer Science,2000(78):986-993. |
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%