| E-300扩链聚氨酯弹性体的力学性能研究 |
| |
| 引用本文： | 洛桂娥,贾林才,刘红梅,刘凉冰.E-300扩链聚氨酯弹性体的力学性能研究[J].特种橡胶制品,2005,26(2):6-9. |
| |
| 作者姓名： | 洛桂娥 贾林才 刘红梅 刘凉冰 |
| |
| 作者单位： | 山西省化工研究所,山西,太原,030021 |
| |
| 摘 要： | 以多元醇(PEA，PPG，PTMG)，PDI，E-300为原料，制备了PU弹性体。研究了多元醇类型，NCO基含量，扩链剂用量和硫化时间等因素对PU弹性体力学性能的影响。结果表明：拉伸强度、拉断伸长率和冲击弹性最高的分别是PEA-PU，PPG-PU和PTMG-PU；PU的硬度、强度和模量随预聚体NCO基含量增加而增加；扩链剂的用量为90％时，PU的力学性能最佳。
|
| 关 键 词： | 聚酯 聚醚 聚氨酯弹性体 E-300 DMTDA |
| 文章编号： | 1005-4030(2005)02-0006-04 |
| 修稿时间： | 2005年1月5日 |
Study on Mechanical property of Polyurethane Elastomer based on E-300 Chain Extender |
| |
| LUO Gui-e,JIA Lin-cai,LIU Hong-mei,LIU Liang-bing.Study on Mechanical property of Polyurethane Elastomer based on E-300 Chain Extender[J].Special Purpose Rubber Products,2005,26(2):6-9. |
| |
| Authors: | LUO Gui-e JIA Lin-cai LIU Hong-mei LIU Liang-bing |
| |
| Abstract: | Polyurethane elastomers based on glycols(PEA,PPG PTMG), diisocyanate(TDI) and chain extender(E-300) were prepared. The effects of glycol, NCO content, chain extender and curing time on mechanical property of polyurethane elastomer were studies. The results showed that the tensile strength, elongation at break and elasticity of PEA/PU were better than that of PPG/PU and PTMG/PU, the hardness, strength and modulus of PU increased with the increasing percentage of available NCO, when the amount of chain extender was the percentage of ninty in stoichiometry and the curing time was ten hours, the PU elastomer had the best mechanical property. |
| |
| Keywords: | polyester polyether PU elastomer E-300 DMTDI |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
