| 透明聚氨酯树脂材料的热性能和力学性能 |
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| 引用本文： | 薛锋,黄树槐.透明聚氨酯树脂材料的热性能和力学性能[J].高分子材料科学与工程,2004,20(4):214-218. |
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| 作者姓名： | 薛锋 黄树槐 |
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| 作者单位： | 华中科技大学塑性成形模拟及模具技术国家重点实验室,湖北,武汉,430074;华中科技大学塑性成形模拟及模具技术国家重点实验室,湖北,武汉,430074 |
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| 基金项目： | 863重大科技专项资助项目(2002AA6Z3083) |
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| 摘 要： | 以4，4′-二环己基甲烷二异氰酸酯(H12MDI)、聚醚多元醇、交联扩链剂、催化剂及助剂合成了一些透明聚氨酯树脂材料。用FT—IR对其结构进行了表征。DSC、TGA测试其玻璃转化温度为95℃～110℃，质量损失5％和10％的热分解温度为265℃、280℃～286℃。SEM对其断口形貌分析表明，其断裂为脆性断裂或韧性断裂。力学性能测试其拉伸强度49MPa～56MPa，断裂伸长率11％～16％，抗弯强度106MPa～116MPa，弹性弯曲模量2006MPa～3089MPa，冲击强度19kJ／m^2～35kJ／m^2，邵氏硬度80D。透先率91％～93％。实验结果表明，透明聚氨酯树脂材料具有卓越的光学性能，优良的力学性能和中等的热稳定性能。
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| 关 键 词： | 透明聚氨酯树脂 热稳定性 力学性能 形态结构 光学性能 |
| 文章编号： | 1000-7555(2004)04-0214-05 |
| 修稿时间： | 2003年12月8日 |
THERMAL AND MECHANICAL PROPERTIES OF TRANSPARENT CASTING POLYURETHANE RESIN |
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| XUE Feng,HUANG Shu-huai ould Technology,School of Material Science and Engineering,Huazhong University of Science and Technology,Wuhan ,China.THERMAL AND MECHANICAL PROPERTIES OF TRANSPARENT CASTING POLYURETHANE RESIN[J].Polymer Materials Science & Engineering,2004,20(4):214-218. |
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| Authors: | XUE Feng HUANG Shu-huai ould Technology School of Material Science and Engineering Huazhong University of Science and Technology Wuhan China |
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| Affiliation: | XUE Feng,HUANG Shu-huai ould Technology,School of Material Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | A series of transparent casting polyurethane resins (TCPU) were synthesized from cycloaliphatic diisocyanate (H_(12)MDI), polyols, crosslinking agent, catalyst, and special aids (T). They were characterized by FT-IR. the thermal stabilities of the obtained TCPU were examined by DSC and TGA. The morphologies fractured surfaces of TCPU were revealed by SEM. The crystalline-amorphous characters of TCPU were studied by WAXD, The optical properties of TCPU were studied by a visible light absorbance measurement. The mechanical properties of TCPU were measured, the results show that it has excellent mechanical properties. |
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| Keywords: | transparent casting polyurethane resin thermal stability mechanical property morphology optical property |
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