研究了普通Novolac线性酚醛、氨催化resol型酚醛的炔丙基化树脂的简便合成;采用FTIR、HNMR、GPC等表征了其分子结构;研究影响热固化过程的因素(分子量、炔基含量、羟甲基含量)和典型树脂的固化动力学.黏度测定、DMA、TGA等分析结果表明该类树脂具有良好的工艺性,100℃的黏度不超过400 mpa·s;树脂可以在200～250℃进行热固化;热固化物耐热性比传统酚醛树脂有明显改进,DMA表明树脂固化物具有高达370℃的玻璃化温度,TGA则表明其初始热分解温度在400℃以上;XRD结果表明树脂固化物的碳化物是典型的玻璃碳.
参考文献
| [1] | KopfPW;Little A D;In:Mark H F;Bikales N M, Overberger C G, Meenges G eds.Phenolic Resin in Encyclopedia of Polymer Science and Engineering[M].2nd. New York:John wiley & Sons,1998:45. |
| [2] | Fukada A.Phenolic resins[A].Florida:CRC Press,1996:5035. |
| [3] | Reghunadhan Nair C P .Non-conventional phenolic resin-an overview on recent advances[J].Journal of Scientific & Industrial Research,2002,61:17-33. |
| [4] | Bindu R L;Reghunadhan Nair C P;Ninan K N .Addition cure phenolic resins based on propargyl ether functional novolacs: synthesis , curing and properties[J].Polymer International,2001,50:651-658. |
| [5] | 徐积功.有机化学[M].北京:高等教育出版社,1990:380-383. |
| [6] | Kissinger H E .Reaction kinetics in differential analysis[J].Analytical Chemistry,1957,29(11):1702-1706. |
| [7] | Crane L W;Dynes P J;Kaelble D H .Analysis of curing kinetics in polymer composites[J].Journal of Polymer Science Part C:Polymer Letters,1973,11:533. |
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%