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| 硬质聚氨酯泡沫塑料室内贮存老化机理研究 | |
| 引用本文： | 刘元俊,贺传兰,邓建国,尤瑜升,冀克俭,张银生,孙思修. 硬质聚氨酯泡沫塑料室内贮存老化机理研究[J]. 含能材料, 2006, 14(1): 56-58 |
| 作者姓名： | 刘元俊 贺传兰 邓建国 尤瑜升 冀克俭 张银生 孙思修 |
| 作者单位： | 1. 山东大学化学与化工学院,山东,济南,250100;中国兵器工业集团第五三研究所,山东,济南,250031 2. 中国工程物理研究院化工材料研究所,四川,绵阳,621900 3. 中国兵器工业集团第五三研究所,山东,济南,250031 4. 山东大学化学与化工学院,山东,济南,250100 |
| 基金项目： | 国家自然科学基金，中国工程物理研究院基金资助项目(10176027) |
| 摘 要： | 采用室内贮存试验、人工加速湿热老化试验和红外光谱法研究了硬质聚氨酯泡沫塑料在室内贮存条件下的老化机理。结果表明:随着老化时间的增加,10%定应变压缩应力和氨基甲酸酯指数不断下降,二者之间具有显著的相关性,室内贮存过程中,酯基水解是导致硬质聚氨酯泡沫塑料压缩性能下降的主要原因。 |
| 关 键 词： | 高分子材料 硬质聚氨酯泡沫塑料 贮存 老化 |
| 文章编号： | 1006-9941（2006）01-0056-03 |
| 收稿时间： | 2005-04-22 |
| 修稿时间： | 2005-10-08 |
Aging Mechanism of Rigid Polyurethane Foams at Indoor Storage Conditions |
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| LIU Yuan-jun,HE Chuan-lan,DENG Jian-guo,YOU Yu-sheng,JI Ke-jian,ZHANG Yin-sheng and SUN Si-xiu. Aging Mechanism of Rigid Polyurethane Foams at Indoor Storage Conditions[J]. Chinese Journal of Energetic Materials, 2006, 14(1): 56-58 | |
| Authors: | LIU Yuan-jun HE Chuan-lan DENG Jian-guo YOU Yu-sheng JI Ke-jian ZHANG Yin-sheng SUN Si-xiu |
| Affiliation: | School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; Shandong Non-metallic Material Institute, Jinan 250031, China; Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China |
| Abstract: | The aging mechanism of rigid polyurethane foams at indoor storage conditions was investigated with indoor storage tests, accelerated hygrothermal aging tests and IR spectra. The results show that compressive stress at 10% strain and amino formic acid ester index decrease with aging time. It indicates that the hydrolysis of ester group is the main reason resulting in the decrease of compressive property of rigid polyurethane foams at indoor storage conditions. |
| Keywords: | polymer materials rigid polyurethane foam storage aging |
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