| 多壁碳纳米管-丙烯酸酯嵌段共聚物共改性环氧树脂三元复合材料性能 |
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| 引用本文： | 李洪峰,刘仲良,白雪峰,乔英杰,曲春艳,王德志,张杨.多壁碳纳米管-丙烯酸酯嵌段共聚物共改性环氧树脂三元复合材料性能[J].复合材料学报,2020,37(4):741-748. |
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| 作者姓名： | 李洪峰 刘仲良 白雪峰 乔英杰 曲春艳 王德志 张杨 |
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| 作者单位： | 1.黑龙江省科学院 石油化学研究院, 哈尔滨 150040; |
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| 基金项目： | 黑龙江省自然科学基金（LH2019E089）；中国博士后科学基金（2018M640314）；黑龙江省博士后基金（LBH-Z18260） |
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| 摘 要： | 采用多壁碳纳米管(MWCNTs)和丙烯酸酯嵌段共聚物(ACRBC)协同改性制备了多壁碳纳米管-丙烯酸酯嵌段共聚物/环氧树脂(MWCNTs-ACRBC/EP)三元复合材料。通过FTIR、 XPS和SEM对强酸处理后的MWCNTs的性能进行表征,利用DSC法对MWCNTs-ACRBC/EP复合材料的固化反应参数进行表征,采用DMA对MWCNTs-ACRBC/EP复合材料的耐热性进行表征,采用电子力学试验机对MWCNTs-ACRBC/EP复合材料的力学性能进行测试。结果表明:强酸处理后在MWCNTs表面成功形成反应官能团。采用150℃×1 h+180℃×3 h作为MWCNTs-ACRBC/EP复合材料的固化工艺, MWCNTs-ACRBC/EP复合材料的玻璃化转变温度可达197.5℃,提高了13.3%, MWCNTs-ACRBC/EP复合材料的力学性能提高,抗弯强度为144 MPa,弯曲模量为3662 MPa,冲击强度为19.5 kJ/m^2。
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| 关 键 词： | 环氧树脂 碳纳米管 嵌段共聚物 复合材料 力学性能 耐热性 |
| 收稿时间： | 2019-04-18 |
Properties of multi-walled carbon nanotubes-acrylate block copolymers/epoxy resin ternary composites |
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| LI Hongfeng,LIU Zhongliang,BAI Xuefeng,QIAO Yingjie,QU Chunyan,WANG Dezhi,ZHANG Yang.Properties of multi-walled carbon nanotubes-acrylate block copolymers/epoxy resin ternary composites[J].Acta Materiae Compositae Sinica,2020,37(4):741-748. |
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| Authors: | LI Hongfeng LIU Zhongliang BAI Xuefeng QIAO Yingjie QU Chunyan WANG Dezhi ZHANG Yang |
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| Affiliation: | 1.Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, China;2.College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China;3.College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China |
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| Abstract: | The multi-walled carbon nanotubes(MWCNTs)-acrylate block copolymers(ACRBC)/epoxy resin(EP) (MWCNTs-ACRBC/EP) ternary composites were prepared. The acid-treated MWCNTs properties were characterized by FTIR, XPS and SEM. The curing process characteristic temperatures of MWCNTs-ACRBC/EP composites were investigated by non-isothermal DSC analysis. The thermal performance of MWCNTs-ACRBC/EP composites were investigated by DMA analysis. The mechanical properties of MWCNTs-ACRBC/EP composites were investigated by electronic tension machine. The results show that the functional groups emerge on the surface of MWCNTs successfully. The curing process of MWCNTs-ACRBC/EP composites is 150℃×1 h+180℃×3 h. The glass transition temperature(Tg) of MWCNTs-ACRBC/EP composites is 197.5℃, which increases by 13.3%. The mechanical properties of MWCNTs-ACRBC/EP composites are improved, the flexural strength of MWCNTs-ACRBC/EP composites is 144 MPa, the flexural modulus of MWCNTs-ACRBC/EP composites is 3662 MPa, and the impact strength of MWCNTs-ACRBC/EP composites is 19.5 kJ/m2. |
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| Keywords: | epoxy resin carbon nanotubes block copolymers composites mechanical properties thermal performance |
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