| 功能基化介晶高聚物增韧环氧树脂性能研究——材料断裂面形态结构与力学性能的关系 |
| |
| 引用本文： | 张保龙,唐广粮,由英才,石可瑜,郭淑华,杜宗杰,黄吉甫.功能基化介晶高聚物增韧环氧树脂性能研究——材料断裂面形态结构与力学性能的关系[J].高分子学报,1999(1). |
| |
| 作者姓名： | 张保龙 唐广粮 由英才 石可瑜 郭淑华 杜宗杰 黄吉甫 |
| |
| 作者单位： | 南开大学化学系,吸附分离功能高分子材料国家重点实验室,天津,300071 |
| |
| 基金项目： | 国家自然科学基金,天津市自然科学基金 |
| |
| 摘 要： | 在系统研究含介晶基团的高聚物ＬＣＥＵＰＰＧ增韧环氧树脂Ｅ ５１／双氰双胺（ｄｉｃｙ）固化体系固化反应活性、反应机制、动态力学行为及冲击性能的基础上，以扫描电镜（ＳＥＭ）为手段，对材料断裂面的形态结构进行了研究，并对体系的形态结构与动态力学行为、冲击性能之间的关系进行了探讨．结果表明，改性后材料断裂面的形态均呈微观两相网络结构，明显不同于未改性体系，正是由于两相网络结构的存在，导致了改性体系的冲击强度大幅度提高．
|
| 关 键 词： | 环氧树脂，形态结构，增韧，介晶结构单元 |
STUDIES ON THE PROPERTIES OF EPOXY RESIN TOUGHED BY A NOVEL REACTIVE TOUGHENING ACCELERATOR--INVESTIGATION ON THE FRACTURE SURFACE OF THE MODIFIED CURING SYSTEM |
| |
| ZHANG Baolong,TANG Guangliang,YOU Yingcai,SHI Keyu,GUO Shuhua,DU Zongjie,HUANG Jifu.STUDIES ON THE PROPERTIES OF EPOXY RESIN TOUGHED BY A NOVEL REACTIVE TOUGHENING ACCELERATOR--INVESTIGATION ON THE FRACTURE SURFACE OF THE MODIFIED CURING SYSTEM[J].Acta Polymerica Sinica,1999(1). |
| |
| Authors: | ZHANG Baolong TANG Guangliang YOU Yingcai SHI Keyu GUO Shuhua DU Zongjie HUANG Jifu |
| |
| Abstract: | Based on the detailed researching in the curing reactivity,reaction mechanism,dynamic mechanical behavior and impact strength for E 51/dicy curing system modified with LCEU PPG containing both the flexible spacer chain and rigid liquid crystal unit chain,the morphology of the fracture surface was observed by SEM.The relationships between the morphologies and dynamic mechanical behavior,impact strengths were also discussed.The results reveal that there exist two phase microstructure for the modified curing systems.This leads to the significant improvement in impact strength. |
| |
| Keywords: | Epoxy resin Morphology Toughening Liquid crystalline unit |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
