Epoxy curing agent News Graphene paper preparation technology continues to upgrade and the industry development trend continues to improve

Graphene paper preparation technology continues to upgrade and the industry development trend continues to improve

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​ ​ ​ Graphene paper, also known as graphene thermal paper, is a new synthetic material based on graphite raw materials. Graphene paper has the advantages of light weight, high hardness, flexibility, good strength, and good thermal conductivity, and has broad application prospects in the fields of aerospace and automobile manufacturing.

The main raw material of graphene paper is graphite. my country is the world’s largest natural graphite producer, and Heilongjiang, Jilin, Shandong, Hunan, Inner Mongolia and other places are the main producing areas of natural graphite in my country. In 2021, my country’s natural graphite output reached 814,000 tons, a year-on-year increase of 16.9%. Benefiting from the sufficient supply of raw materials, my country’s graphene paper industry has developed rapidly.

According to the “2022-2027 China Graphene Paper Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center, The preparation process of graphene paper is relatively complicated. It is necessary to first use graphite as raw material, use liquid phase oxidation method to prepare graphene oxide, and then use thermal reduction method to prepare graphene paper. The thermal reduction method is subdivided into pre-reduction method and post-reduction method. This method has problems such as poor conductivity of the finished product and is not suitable for large-scale production. In 2021, Xi’an University of Science and Technology developed a preparation process for graphene paper using a one-step reduction method. This method has the advantages of convenient operation and low production cost, and is expected to realize large-scale production of graphene paper in my country.

​ ​ Graphene paper has a wide range of applications, including aerospace and automobile manufacturing. As the concept of environmental protection continues to deepen, graphene paper, as a new environmentally friendly material, has continued to expand its industry development space. In recent years, my country’s manufacturing companies and related scientific research institutions have continued to increase research and development efforts, driving the further expansion of the application scope of graphene paper, mainly including electronic products, thermal interface materials, etc. In the field of electronic products, graphene paper has ultra-high thermal conductivity and can be used as a uniform heat film for mobile phones and other electronic products; in the field of thermal interface materials, using graphene paper as the main filler of thermal interface materials can effectively solve the third-generation Thermal management issues in semiconductor material devices.

At present, the world’s leading graphene paper companies are mainly concentrated in Europe, the United States, Japan and other countries, including Japan’s Kaneka, Japan’s Panasonic, the US SOTK company Sono-Tek, the US 3M company, etc. Driven by technological innovation, my country’s graphene paper industry has developed rapidly. Nanjing Muke Nanotechnology Co., Ltd., Nanjing Jicang Nanotechnology Co., Ltd., Shandong Lite Nanotechnology Co., Ltd., and Hefei Kejing Material Technology Co., Ltd. are the main graphene paper manufacturers in my country.

Industry analysts said that graphene paper, as a new environmentally friendly material, has broad application prospects in many fields. As market demand gradually releases As well as the continuous innovation of production technology, the development space of my country’s graphene paper industry will continue to expand. In recent years, my country’s manufacturing enterprises and related scientific research institutions have continued to increase their research and development efforts, which will further accelerate the industrialization process of graphene paper in my country.

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