化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (12) : 220-224.

开发与应用

多巴胺-Fe³⁺/天然橡胶复合材料的制备及性能研究

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Preparation and property of DOPA-Fe³⁺/NR composite

Liu Xuetong¹, Zhang Zhifei¹, Yang Kun^1,2

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文章历史 +

Received		Published
2018-08-03		2019-12-20
Issue Date	Revised Date
2020-01-03	2018-08-03

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摘要

将多巴胺(DOPA)和Fe³⁺的动态可逆配位键引入到高分子材料中,是制备具有自修复性能高分子材料的有效方法。利用碳纳米管(CNT)表面包覆的DOPA与Fe³⁺之间的配位作用,制备出具有自修复性能的复合材料。结果表明:Fe³⁺与DOPA可形成3种配位结构,其中三配位复合材料的力学强度最高可达4.3MPa。另外,DOPA与Fe³⁺的配位结构及DOPA含量都会影响复合材料的修复性能。随DOPA含量增加,复合材料中配位键含量提高,修复后强度可达1.2MPa。

Abstract

The introduction of dopamine (DOPA) and Fe³⁺ dynamic reversible coordination bonds into polymer materials was an effective method for preparing polymer materials with self-healing properties.The composite materials with self-repairing properties was prepared by introducing the coordination between Fe³⁺ and DOPA coated on carbon nanotube (CNT) surface into NR.The results shown that three coordination structures were obtained between Fe³⁺ and DOPA,and the mechanical strength of the three-coordinate composite can reach 4.3MPa.In addition,the coordination structure and DOPA content both had an effect on the repair performance of the composite.With the increase of DOPA content,the content of coordination bond in the composite material increased,and the strength after repair can reach 1.2MPa.

关键词

自修复 / 碳纳米管 / 配位键 / 天然胶乳

Key words

self-healing / CNT / coordination bond / natural latex

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多巴胺-Fe³⁺/天然橡胶复合材料的制备及性能研究[J]. 化工新型材料, 2019, 47(12): 220-224 DOI:

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