| 浇注型聚酯聚氨酯弹性体的合成与性能研究 |
| |
| 作者单位： | 中国科学技术大学 |
| |
| 摘 要： | 通过聚巳二酸乙二醇酯和甲苯二异氨酸酯（ＴＤＩ）预聚后，用芳香族胺（ＭＯＣＡ）扩链合成浇注型聚酯聚氨酯弹性体，用ＦＴＩＲ法跟踪研究了不同软、硬段配比对固化初始反应转化率的影响。发现了浇注液的凝胶时间随预聚体ＮＣＯ含量的降低或添加ＫＤ添加剂而被延长．对合成的不同硬段含量聚酯聚氨酯弹性体的应力一应变行为进行了讨论．
|
| 关 键 词： | 聚酯聚氨酯，弹性体，合成，固化，凝胶时间，应力－应变 |
STUDIES ON SYNTHESES AND STRESS-STRAIN PROPERTIES OF CASTING POLYESTER-URETHANE ELASTOMERS |
| |
| Liu Jin, Luo Xiao lie. STUDIES ON SYNTHESES AND STRESS-STRAIN PROPERTIES OF CASTING POLYESTER-URETHANE ELASTOMERS[J]. Journal of Anhui Institute of Architecture(Natural Science), 1995, 0(1) |
| |
| Authors: | Liu Jin Luo Xiao lie |
| |
| Affiliation: | Liu Jin; Luo Xiao lie |
| |
| Abstract: | In the paper, hydroxyl terminated polyadipic - ethanediol - ester with 2, 4 -TDI form NCO terminated prepolymer. When MOCA are used as chain extenders, the polyester urethane elastomers have been synthesized. The effect of the various ratios of soft segment to hard segment on the preliminary curing reaction conversion rate is studied by FTIR tracing method. It is found that the gelation time of casting liguid is prolonged with decreasing of the NCO content of prepolymers or using the additive KD. The influence of different molar ratios of polyester/TDI/MOCA on the stress-strain behavior of polyester-urethane elastomers is dealt with as well. |
| |
| Keywords: | Polyester -urethanes synthesis elastomer curing extension reaction gelation time stress - strain |
| 本文献已被 CNKI 等数据库收录！ |
