| 买淑芳,方文时,杨伟才,李敬玮.海岛结构环氧树脂材料的抗冲磨试验研究[J].水利学报,2005,36(12):1498-1502 |
| 海岛结构环氧树脂材料的抗冲磨试验研究 |
| Experimental study on abrasion resistant performance of epoxy resin with sea island structure |
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| DOI： |
| 中文关键词: 多相多组分 海岛结构 环氧树脂砂浆 断裂韧性 抗冲刷磨损 高速水流 水工建筑物 |
| 英文关键词: epoxy resin sea island structure fracture toughness abrasion resistant cracking prevention |
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| 中文摘要: |
| 本文首先分析了海岛结构环氧材料的增韧、抗冲磨机理。通过断裂韧性、抗冲磨性能及强化开裂试验得出，与环氧-固化剂体系相比，加入增韧剂ZRJ后制成的海岛结构环氧树脂其断裂韧性提高约9～20倍；抗高速含砂水流冲磨强度提高46%；在-20℃～80℃强化开裂试验中的抗裂性能也显著提高，其中增韧剂为环氧树脂的80%时效果最佳。文中还给出了各种配方的海岛结构环氧材料的扫描电子显微照片，从中可观测到微观形貌的变化，看到粒径为0.2μm的海岛结构。试验结果证明，具有海岛结构的环氧树脂材料可用于水工建筑物表面抗含砂水流冲磨破坏和低温环境防裂环氧砂浆涂层，极具实用价值。 |
| 英文摘要: |
| The mechanism of sea island structure in improving the fracture toughness and abrasion resistant performance of epoxy resin is analyzed. The experimental study on fracture toughness, abrasion resistant performance and reinforced split test show that the epoxy resin with sea island structure by adding additive ZRJ is much better than ordinary epoxy resin adding curing agent. The fracture toughness is elevated by 9～20 times, the abrasion resistant performance is elevated by 46% and the split resistant performance for temperature from -20℃ to 80℃ is also remarkably improved. It shows that this kind of epoxy resin is suitable for reinforcing the concrete surface to against the abrasion of high velocity silt flow and preventing cracking of concrete due to low environmental temperature. |
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