文章信息/Info

Title:

Modification of Graphene Oxide and Its application in Silicone Rubber

作者:

王華蘭1; *; 劉日勝1; 胡應乾1; 鄔繼榮1; 張國棟1; 周旭峰2; 劉兆平2

(1. 杭州師范大學，有機硅化學及材料技術教育部重點實驗室 浙江 杭州 311121

(2. 浙江省石墨烯應用研究重點實驗室，中國科學院寧波材料技術與工程研究所，浙江 寧波 214122)

Author(s):

WANG Hualan 1; *;  LIU Risheng 1;  HU Yingqian 1;  Wu Jirong1;  Zhang Guodong1;  ZHOU Xufeng 2;  LIU Zhaoping 2

（1.? Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education，Hangzhou Normal University, Hangzhou 311121, China）

（2.? Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Zhejiang 315201, China）

 

關鍵詞:

氧化石墨烯; 有機硅; 硅橡膠; 黏合劑; 力學性能

Keywords:

graphene oxide;  silicone;  silicone rubber;  adhesive;  mechanical properties

DOI:

10.7502/j.issn.1674-3962.2018.03.06

文獻標志碼:

A

摘要:

科技的飛速發展為有機硅新材料帶來了新的機遇和挑戰。為了改善目前有機硅黏合劑的力學強度和黏合性能，以適應不斷發展變化的工業應用新需求，本文設計制備了一種全新的功能性氧化石墨烯/SiO2（GOS）復合填料，并制備了相應的GOS/室溫硫化硅橡膠（RTV SR）復合材料。研究了GOS對硅橡膠復合材料力學性能的影響，并考查了硅橡膠復合材料對基材金屬鋁的黏合性能。首先采用正硅酸四乙酯和氧化石墨烯（graphene oxide, GO）為原料，用原位合成法將納米SiO2修飾到GO的片層上，制備了跨維度的新型功能填料GOS。然后在無溶劑條件下將GOS引入到硅橡膠基體中，經固化后制備了具有良好力學性能和黏合功能的硅橡膠復合材料。研究結果表明：在室溫下即能實現SiO2對GO的有效修飾，修飾后的GO更易于在硅橡膠中均勻分散，所得硅橡膠復合材料的力學強度和黏合性能均得到有效提升。

Abstract:

The rapid development of science and technology has brought new opportunities and challenges for new silicone materials. In order to improve the mechanical strength and adhesive properties of the present silicone adhesive and to meet the new requirements of evolving industrial applications, a new functional graphene oxide/SiO2 (GOS) filler and the corresponding GOS/room temperature vulcanized silicone rubber (RTV SR) composites were prepared. The effects of GOS on the mechanical properties of silicone rubber composites were investigated, and the adhesion of silicone rubber composites to the aluminum substrate was also investigated. Firstly, tetraethyl orthosilicate and GO were used as raw materials, and the in-situ synthesis method was used to introduce the nano-SiO2 onto the GO layer to prepare GOS. Then GOS was integrated into the silicone rubber matrix under solvent-free conditions, and the silicone rubber composite with good mechanical properties and adhesion was prepared by vulcanization. The results show that SiO2 can effectively modify GO at room temperature, and the modified GO is more easily dispersed in the silicone rubber. The mechanical strength and adhesive properties of the obtained silicone rubber composite thus increase significantly.