|本期目录/Table of Contents|

[1]赵 文a,汤 琦a,徐一诺b,等.石墨烯-纳米金刚石/硅橡胶复合材料的制备与性能[J].合成橡胶工业,2024,1:78.
　ZHAO Wena,TANG Qia,XU Yi-nuob,et al.Preparation and properties of graphene-nano-diamond hybrid/silicone rubber composites[J].China synthetic rubber industy,2024,1:78.
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石墨烯-纳米金刚石/硅橡胶复合材料的制备与性能(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2024年1期
页码:
78
栏目:
出版日期:
2024-01-15

文章信息/Info

Title:
Preparation and properties of graphene-nano-diamond hybrid/silicone rubber composites
文章编号:
1000-1255（2024）01-0072-05
作者:
赵 文a; 汤 琦a; 徐一诺b; 季泽阳a; 曹 兰a; 宗成中a
青岛科技大学 a.高分子科学与工程学院；b.中德工程学院，山东 青岛 266042
Author(s):
ZHAO Wena;  TANG Qia;  XU Yi-nuob;  JI Ze-yanga;  CAO Lana;  ZONG Cheng-zhong a*
a. School of Polymer Science and Engineering; b. Sino-German College of Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
关键词:
硅橡胶; 石墨烯; 纳米金刚石; 导热性能
Keywords:
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分类号:
-
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2024.01.0078
文献标识码:
-
摘要:
利用多巴胺对几乎任何表现的适应性，将纳米金刚石负载到石墨烯表面，得到结构稳定的石墨烯-纳米金刚石杂化材料（GND）。控制GND中石墨烯与纳米金刚石的杂化比例，利用纳米金刚石和硅橡胶基体阻断石墨烯的导电通路，在保证绝缘的条件下提高了GND/硅橡胶复合材料的导热性能。研究结果表明，当GND的质量分数为4%且石墨烯与纳米金刚石的质量比为0.25/1.00时，GND/硅橡胶复合材料在25，50，75，100 ℃下的热导率均为最高，分别比只用纳米金刚石时提高20.5%、32.6%、52.8%和79.2%。
Abstract:
It has been proved that adding a single type of thermal conductivity filler is challenging to achieve a high theoretical thermal conductivity value of polymer composites. However, adding mixed thermal conductive fillers of different shapes to the polymer matrix makes it easier to form a thermally conductive path or reduce the voids in the matrix［1］. Hence, the polymer composite material has better thermal conductivity than the single-shape thermal conductive filling material. In this work, a structurally stable graphene-nano-diamond hybrid (GND) is obtained by taking advantage of dopamine’s adaptability to almost any expression. Graphene is a two-dimensional material, while nano-diamond is a zero-dimensional material. They can produce cooperative thermal conductivity when both are added to the polymer matrix simultaneously. Moreover, nano-diamond and silicone rubber (SR) can block the conductive path of graphene and prepare thermal-insulating SR composite mate-rials.　As seen in Fig 1(a), the graphene is transparent with some folds on the surface. As shown in Fig 1 (b), (c) and (d), there are many small particles on the surface of graphene, which are nano-diamonds, indicating that the preparation of GND hybrid materials is successful. The nano-diamond is fully loaded on the surface when more graphene exists, shown in Fig 1 (b). When there is less graphene, some nano-diamond particles hang outside the graphene lamella and are scattered around the graphene, and the nano-diamond agglomeration is severe.　As shown in Fig 2, the thermal conductivity of SR composites with GND of m(graphene)/m(nano-diamond) 0/1.00 added is unchanged with the temperature increase. However, the thermal conductivity of SR composites with GND of m(graphene)/m(nano-diamond) 0.17/1.00, 0.25/1.00, and 0.50/1.00 added increases with the increase in temperature. GND ［m(graphene)/m(nano-diamond) 0.25/1.00] / SR composite shows the most obvious increasing trend, and the thermal conductivity at 100 ℃ is 56% higher than that at 25 ℃. At 25, 50, 75, 100 ℃, the thermal conductivity of GND ［m(graphene)/m(nano-diamond) 0.25/1.00]/SR composite is increased by 20.5%, 32.6%, 52.8% and 79.2%, respectively, compared with GND［m(graphene)/m(nano-diamond) 0/1.00] / SR composite.

参考文献/References

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备注/Memo

备注/Memo:
Supported by Natural Science Foundation of Shandong Province (ZR 2020 QE 0720).
更新日期/Last Update: 1900-01-01