Properties of water blown rigid polyurethane foams with different functionality
文献类型：期刊论文
| 作者 | Li Xiaobin1,2; Cao Hongbin1; Zhang Yi1 |
| 刊名 | JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 23期号:1页码:125-129 |
| 关键词 | polyether polyol rigid foam viscosity compressive strength dimensional stability cell size glass transition temperature |
| ISSN号 | 1000-2413 |
| 其他题名 | J. Wuhan Univ. Technol.-Mat. Sci. Edit. |
| 中文摘要 | Water blown rigid polyurethane foams with different functionality were prepared. The physical properties of rigid foams were measured with rotational viscometer (NDJ-1), universal testing machine (Instron3365), scanning electron microscope (SEM) and differential scanning calorimeter (DSC). The results show that the viscosity of polyether polyol increases exponentially from 62 mPa s to 6 000 mPa s with the increase of functionality from 2 to 5.6, respectively. The overall density of foam increases slightly from 31.7 kg/m(3) to 37.4 kg/m(3) with increasing functionality while core density exhibited little difference. Compressive strength of foam shows the similar behavior wit h density except for 2-functional sample. At the same time, dimensional stability becomes better with increasing functionality except for 5.6-functional foam that has worse stability than 4.8-functional foam. From the SEM results, the functionality is not an important factor in determining distribution of cell size of foam. According to the results of thermal analysis, the glass transition temperature (T-g) shifts to a higher temperature from 128.9 degrees C to 166.3 degrees C for the 2 to 5.6 functional foam, respectively. |
| 英文摘要 | Water blown rigid polyurethane foams with different functionality were prepared. The physical properties of rigid foams were measured with rotational viscometer (NDJ-1), universal testing machine (Instron3365), scanning electron microscope (SEM) and differential scanning calorimeter (DSC). The results show that the viscosity of polyether polyol increases exponentially from 62 mPa s to 6 000 mPa s with the increase of functionality from 2 to 5.6, respectively. The overall density of foam increases slightly from 31.7 kg/m(3) to 37.4 kg/m(3) with increasing functionality while core density exhibited little difference. Compressive strength of foam shows the similar behavior wit h density except for 2-functional sample. At the same time, dimensional stability becomes better with increasing functionality except for 5.6-functional foam that has worse stability than 4.8-functional foam. From the SEM results, the functionality is not an important factor in determining distribution of cell size of foam. According to the results of thermal analysis, the glass transition temperature (T-g) shifts to a higher temperature from 128.9 degrees C to 166.3 degrees C for the 2 to 5.6 functional foam, respectively. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | DISTILLED WATER |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000253787500028 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2795]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Xiaobin,Cao Hongbin,Zhang Yi. Properties of water blown rigid polyurethane foams with different functionality[J]. JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION,2008,23(1):125-129. |
| APA | Li Xiaobin,Cao Hongbin,&Zhang Yi.(2008).Properties of water blown rigid polyurethane foams with different functionality.JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION,23(1),125-129. |
| MLA | Li Xiaobin,et al."Properties of water blown rigid polyurethane foams with different functionality".JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION 23.1(2008):125-129. |
入库方式： OAI收割
来源：过程工程研究所
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