24 years of professional research and development, production of chemical silicone products


Call Us
+86 27 8877 2208


China has made a major breakthrough in the field of gas phase nano-silicon dioxide international standardization

Recently, a new batch of standard project documents published by the International Organization for Standardization (ISO) showed that two international standards for nanomaterials proposed by China - "Method for Determining Silicon Hydroxyl Content on gas phase nano-silicon" and "Photocatalytic Nano-TiO2 "The ISO/TC 256 committee successfully passed the project and became the new international standard-setting project of ISO. This is a new major breakthrough made by China's nano-enterprises in the field of nano-materials international standardization after the international standard (ISO 18473-3:2018) for the release of fumed silica for silicone rubber in 2018. Nano-enterprises continue to actively participate in international standardization practices and help China's manufacturing of nanomaterials “go global” to achieve new results.

According to Dr. Wang Yuelin, the head of the International Standard for the Determination of Silicon Hydroxyl Content on the Surface of Fused Nano-Silica, and Dr. Wang Yuelin, Dean of Hubei Yichang Huifu Silicon Materials Co., Ltd. The standard proposal is the idea that emerged from the discussion of experts in the early stage of the development of fumed silica for silicone rubber. Experts at home and abroad have found that the content of silanol has a significant impact on the quality and application properties of fumed silica. However, there is no reliable and accurate measurement method in the industry, and it is urgent to establish corresponding testing techniques and standards. Dr. Wang Yuelin sharply captured this information, organized the company's internal research team in time, and jointly conducted research with Sichuan University and Beijing Physical and Chemical Analysis and Testing Center. After more than a year, he finally developed a method with high measurement accuracy. After the introduction of the method at the ISO/TC 256 annual meeting in October 2018, it was widely recognized by international experts and agreed to initiate the development of the international standard.

The international standard of "Photocatalytic Nano-TiO2" was presided over by Anhui Xuancheng Jingrui New Material Co., Ltd., and Xu Jin, chairman of the company, said that after nearly 10 years of development, the company has become a leader in the domestic titanium dioxide product industry for photocatalysis. With the world's advanced technology and domestic nano-materials, the top technology and R&D equipment team, the formulation, preparation and particle size control technology, calcination technology control system has reached the international leading level. The developed JR05 nano titanium dioxide can be compared with similar international products. Comparable, some performance indicators are at the international leading level. Since 2010, Xuancheng Jingrui New Materials Co., Ltd. has participated in the formulation of 9 national and international standards such as “Nano-alumina” and “Photocatalytic Nanomaterials Photolysis Index Test Method”, and now presided over the development of “Photocatalytic Nano-TiO2”. International standards are both positive contributors to standardization and beneficiaries of standardization.

"The formulation of these two international standards is not only a vivid microcosm of China's nano-enterprises actively participating in international standardization practices, issuing Chinese voices, and contributing to China's programs, but also will lay a solid foundation for China to win respect from international counterparts and win customer awareness." Dai Shifeng, convener of the International Working Group on Functional Pigments and Body Colors, ISO/TC 256/WG 7.

Nano-silica and nano-titanium dioxide are new materials with excellent properties and nano-effects. They are widely used in environmental treatment, energy-saving materials, advanced ceramics, medicine, and daily chemicals. They are the most widely used nano-powder materials. . However, the preparation process of the two nano materials is complicated, the equipment requirements are high, the engineering technology is difficult, and the scale preparation technology is difficult. Multinational corporations in Europe and the United States have achieved industrialization by virtue of their technological first-mover advantage, and have laid out a large number of patents, which have created many technical obstacles to technological innovation of Chinese enterprises. A group of Chinese nano-enterprises represented by Hubei Yichang Huifu Silicon Materials Co., Ltd., Anhui Xuancheng Jingrui New Materials Co., Ltd. and Shandong Guohua Functional Materials Co., Ltd. are not afraid of hardships and difficulties, overcoming industrialization. Through various technical difficulties and equipment difficulties, through more than ten years of efforts, the scale of localization of nanomaterials has been successfully realized, and core technologies and industrialized equipments with independent intellectual property rights have been formed, breaking the long-term monopoly of foreign enterprises and setting international standards. Foundation.