| 用FTIR研究环氧化天然橡胶的热老化 |
| |
| 引用本文： | 李思东 余和平. 用FTIR研究环氧化天然橡胶的热老化[J]. 应用化学, 1999, 16(2): 111-112 |
| |
| 作者姓名： | 李思东 余和平 |
| |
| 作者单位： | 华南热带农产品加工设计研究所 |
| |
| 摘 要： | 与天然橡胶（ＮＲ）相比，环氧化天然橡胶（ＥＮＲ）具有良好的耐油性和气密性［１，２］，并由于环氧基团而有一定的极性，同其它高聚物的相容性较好．通过环氧基团的二次反应，ＥＮＲ分子链可接上其它的功能团，满足一些特殊的用途［３，４］．对于ＥＮＲ的力学性能、共...
|
| 关 键 词： | 环氧化天然橡胶，热老化，红外差示光谱法 |
Thermal Aging of Epoxidized Natural Rubber by FTIR |
| |
| Li Sidong,Yu Heping,Peng Zheng,Chen Ying,Li Peisen. Thermal Aging of Epoxidized Natural Rubber by FTIR[J]. Chinese Journal of Applied Chemistry, 1999, 16(2): 111-112 |
| |
| Authors: | Li Sidong Yu Heping Peng Zheng Chen Ying Li Peisen |
| |
| Affiliation: | Li Sidong*,Yu Heping,Peng Zheng,Chen Ying,Li Peisen |
| |
| Abstract: | The thermal oxidative and thermal aging behaviour of epoxidized natural rubber(ENR) have been studied by FTIR. The results showed that the thermal oxidative aging reaction of ENR in air is an autocatalytic oxidation, the aging destruction occurrs in the epoxy and carboncarbon double bonds of the ENR molecule and the products of aging are alcohols, aldehydes, ketones, carboxylic acids and esters. The destruction of double bonds is more serious than that of epoxy bonds in the earlier stage, but in the later stage the destruction occurs mainly in epoxy bonds. The thermal aging of ENR in vacuum is also an autocatalytic reaction, the products of aging are similar to that after thermal oxidative aging, but the destruction of epoxy bonds always takes place at first. |
| |
| Keywords: | epoxidized natural rubber thermal aging differential FTIR |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
