| 含异氰酸酯基的低聚物和聚醚增容改性POM/TPU共混物 |
| |
| 引用本文： | 刘春林,周如东,吴盾,陈玲红.含异氰酸酯基的低聚物和聚醚增容改性POM/TPU共混物[J].化工学报,2008,59(9):2377-2383. |
| |
| 作者姓名： | 刘春林 周如东 吴盾 陈玲红 |
| |
| 作者单位： | 江苏工业学院材料科学与工程学院; 常州市高分子新材料重点实验室 ; |
| |
| 摘 要： | 利用双螺杆挤出机制备了聚甲醛(POM)/热塑性聚氨酯弹性体(TPU)、POM/TPU/含异氰酸酯基的低聚物(Z)以及POM/TPU/Z/聚醚3种共混物。采用力学性能测试、差示扫描量热分析(DSC)、偏光显微镜(PLM)、傅里叶转换红外线光谱 (FTIR)、扫描电子显微镜(SEM)、动态力学性能分析(DMA)等，研究了3种共混物的力学性能、结晶行为及形态结构。结果表明：共混物的缺口冲击强度和断裂伸长率随TPU含量的增加而提高;异氰酸酯基低聚物（Z）和聚醚在促进分散相分散、增强两相间的相容性方面发挥重要作用，降低了聚甲醛的结晶度，能够有效地提高共混物的缺口冲击强度和断裂伸长率。
|
| 关 键 词： | 聚甲醛 热塑性聚氨酯弹性体 形态结构 力学性能 相容性 |
| 收稿时间： | 2007-12-11 |
| 修稿时间： | 2008-4-23
|
Isocyanate oligomer and polyether extended to modify POM/TPU blends |
| |
| LIU Chunlin,ZHOU Rudong,WU Dun,CHEN Linghong.Isocyanate oligomer and polyether extended to modify POM/TPU blends[J].Journal of Chemical Industry and Engineering(China),2008,59(9):2377-2383. |
| |
| Authors: | LIU Chunlin ZHOU Rudong WU Dun CHEN Linghong |
| |
| Abstract: | The blends of polyoxymethylene (POM)/thermoplastic polyurethane elastomer (TPU) , POM/TPU/isocyanate oligomer (Z) and POM/TPU/Z/polyether were prepared by using twin-screw extruder.Mechanical properties, crystallization behavior and morphology were studied through mechanical properties testing, differential scanning calorimetry(DSC), polarizing microscopy (PLM), Fourier transform infrared spectrometer (FTIR)，scanning electron microscopy (SEM) and dynamic mechanic analysis (DMA).The results showed that with increasing content of TPU, elongation at break and notched impact strength of the blends increased.Z and polyether played an important role in promoting the dispersion of TPU in POM and enhancing compatibility of two phases.The crystallinity of POM in the blends decreased.Elongation at break and notched impact strength of the blends were improved. |
| |
| Keywords: | polyoxymethylene thermoplastic polyurethane elastomer morphology mechanical properties compatibility |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
