| 端羧基液体丁腈橡胶改性环氧结构胶的研究 |
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| 引用本文： | 姚兴芳,张世锋,李军伟.端羧基液体丁腈橡胶改性环氧结构胶的研究[J].热固性树脂,2008,23(2):33-36. |
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| 作者姓名： | 姚兴芳 张世锋 李军伟 |
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| 作者单位： | 1. 天津城市建设学院材料科学与工程系,天津,300384
2. 北京林业大学材料与技术学院,北京,100083 |
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| 基金项目： | 建设部耐高温建筑结构胶的研制及应用项目 |
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| 摘 要： | 采用端羧基液体丁腈橡胶(CTBN)增韧环氧树脂,制备了双组分室温固化环氧结构胶。利用傅里叶变换红外光谱仪(FTIR)、微机控制万能材料试验机及扫描电镜(SEM)对固化过程、固化产物剪切强度及固化产物微观形态进行了表征。该胶树脂甲组分的最佳制备条件如下:环氧树脂与CTBN的质量比8∶1,反应温度200℃,保温时间2.5 h。该胶在室温下固化24 h,室温剪切强度可达29.24 MPa,耐介质性能良好,CTBN改性环氧树脂增韧效果显著。
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| 关 键 词： | 端羧基液体丁腈橡胶 改性 环氧树脂 结构胶 |
| 文章编号： | 1002-7432(2008)02-0033-04 |
| 修稿时间： | 2007年10月31 |
Study on CTBN modified epoxy resin adhesive |
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| YAO Xing-fang,ZHANG Shi-feng,LI Jun-wei.Study on CTBN modified epoxy resin adhesive[J].Thermosetting Resin,2008,23(2):33-36. |
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| Authors: | YAO Xing-fang ZHANG Shi-feng LI Jun-wei |
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| Abstract: | Two-component liquid carboxyl terminated nitrile rubber(CTBN) modified epoxy adhesive was prepared in room temperature.The curing progress,shear strength and micrograph of the adhesives were tested by fourier transform infrared spectroscopy(FTIR),universal testing machine and scanning electronic microscope(SEM).The optium preparation conditions of resin component were as follows:weight ratio of epoxy resin to CTBN 8∶1,reaction temperature 200 ℃,reaction time 2.5 h.The results showed shear strength of the adhesive could reach 29.24 MPa after cured 24 h at room temperature,and the medium-resistant was excellent.The toughening effect of CTBN on epoxy resin was remarkabe. |
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| Keywords: | the liquid carboxyl terminated nitrile rubber modification epoxy resin structural adhesive |
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