加载金属催化剂在碳纤维表面生长多尺度碳纳米管增强体

doi:10.11901/1005.3093.2018.423

材料研究学报

2018, Vol. 32

Issue (7): 495-501 DOI: 10.11901/1005.3093.2018.423

研究论文

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加载金属催化剂在碳纤维表面生长多尺度碳纳米管增强体

王延相¹, 苏顺生¹(

), 范汶鑫^1,², 秦建杰¹, 瞿策¹, 王成国¹

1 山东大学材料科学与工程学院材料液固结构演变与加工教育部重点实验室济南 250061
2 青岛大学材料科学与工程学院青岛 266071

Metal Catalyst for Preparation of Multiscale Reinforcement of Carbon Nanotubes on Carbon Fibers

Yanxiang WANG¹, Shunsheng SU¹(

), Wenxin FAN^1,², Jianjie QIN¹, Ce QU¹, Chengguo WANG¹

1 Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, China
2 School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China

引用本文:

王延相, 苏顺生, 范汶鑫, 秦建杰, 瞿策, 王成国. 加载金属催化剂在碳纤维表面生长多尺度碳纳米管增强体[J]. 材料研究学报, 2018, 32(7): 495-501.
Yanxiang WANG, Shunsheng SU, Wenxin FAN, Jianjie QIN, Ce QU, Chengguo WANG. Metal Catalyst for Preparation of Multiscale Reinforcement of Carbon Nanotubes on Carbon Fibers[J]. Chinese Journal of Materials Research, 2018, 32(7): 495-501.

全文: PDF(4459 KB) HTML

摘要:

用化学气相沉积法在高强度碳纤维表面生长碳纳米管(CNTs)多尺度增强体,研究了加载金属催化剂成分对CNTs生长前后碳纤维强度的影响。结果表明：在500℃金属催化剂成分对还原后催化剂颗粒的形貌和碳纤维的强度影响不大,但是对CNTs的生长速度和碳纤维表面生长CNTs多尺度增强体的强度有显著的影响。高催化效率不仅有利于碳纤维表面CNTs的高效合成,还促进碳纤维表面损伤的修复。Fe-Cu和Ni-Cu催化体系具有较高的催化效率,碳纤维表面催化生长CNTs后其拉伸强度分别提高了12.26%和12.80%。

关键词 ：无机非金属材料, 金属催化剂, 碳纳米管, 碳纤维, 拉伸强度, 多尺度增强体

Abstract：

Carbon nanotubes (CNTs)-grafted carbon fibers, which can significantly improve the tensile strength of carbon fibers, were successfully prepared via chemical vapor deposition (CVD) process. It was found that the metal catalyst composition had a little influence on the morphology of catalyst particles and tensile strength of carbon fibers after the reduction of catalyst precursor, but significantly affected the growth rate of CNTs and the corresponding tensile strength of CNT-grafted carbon fibers. High catalyst activity not only contributes to the high-efficiency for the synthesis of CNTs, but also facilitate the healing of damages on surface and strengthening of carbon fibers. Fe-Cu and Ni-Cu catalysts were found to be high efficient catalyst for CNTs growth. Therewith, the tensile strength of the CNTs grafted carbon fiber prepared in the presence of catalysts of Fe-Cu and Ni-Cu increased by 12.26% and 12.80% respectively.

Key words： inorganic non-metallic materials metal catalyst carbon nanotubes carbon fibers tensile strength CNT-grafted carbon fibers

收稿日期: 2018-01-23

ZTFLH:

TQ342.31

基金资助:山东省自然科学基金(ZR2017MEM011,2018GGX104022),国家自然科学基金(51573087)

作者简介:

作者简介王延相,男,1972年生,教授

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https://www.cjmr.org/CN/10.11901/1005.3093.2018.423 或 https://www.cjmr.org/CN/Y2018/V32/I7/495

图1 碳纤维表面生长CNTs的工艺流程图

图2 碳纤维表面涂覆不同成分催化剂后还原所得各种催化剂颗粒的形貌

图3 催化剂前驱体浓度对碳纤维表面(a)催化加载量与(b)催化剂颗粒粒径及CNTs/CNFs直径的影响

图4 表面加载不同成分催化剂颗粒后碳纤维的强度和拉曼光谱

图5 用不同催化剂催化合成碳纤维表面生长CNTs多尺度增强体的表面形貌

图6 不同催化剂催化合成碳纤维表面生长CNTs多尺度增强体的拉伸强度和在不同温度下金属催化剂颗粒对碳纤维强度的影响

图7 不同催化剂催化合成碳纤维表面生长CNTs多尺度增强体的表面形貌与拉伸强度

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