On February 7, 2023, FJYX Advanced Materials Technology Corporation, a leading manufacturer of nano-silica in China, issued an announcement:
The company has signed a Strategic Cooperation Framework Agreement with the SZNW Institute of Nano-micro Advanced Microspheres Materials Application Technology (hereinafter referred to as the "Institute of Nano-microspheres"), which will jointly promote the industrialization of nanospheres and realize domestic substitution.
FJYX is an invisible champion in the field of nano-silica in China.
The Institute of Nano-microsphere is affiliated to the SZNW Nano-microsphere Technology Group
SZNW is the invisible champion enterprise in the field of high-performance nanosphere materials in China.
Nano-spheres, usually spherical particles with a particle size of 5 nm to 1000 nm, have a diameter equivalent to one thirtieth of that of hair, and are characterized by small volume but high specific surface area, so they have strong optical, electrical and magnetic properties.
From the perspective of application field, high-performance microspheres are indispensable as carriers in many application scenarios such as biomedicine, electronics, in vitro diagnosis, etc.
Biomedicine: biomedical nanospheres mainly refer to the chromatographic packing/chromatographic medium used in drug separation and purification. It can be said that without this material, there would be no chromatographic/chromatographic technology, and modern drug development would be difficult to sustain, so they are very important raw materials.
Flat panel display: in the field of flat panel display, spacer microspheres are used as LCD panels and PDLC intelligent dimming film box thickness control, which play a role in supporting the upper and lower substrates; The conductive gold ball connects the chip and the panel to conduct electricity, and is also an important component of the anisotropic conductive adhesive film ACF.
Due to the rapid development of downstream pharmaceutical, electronic and other industries, the development potential of nanospheres materials in the domestic and foreign markets, which are dominated by chromatographic fillers, is large.
However, the large-scale and precise preparation of this material is extremely challenging. The precise preparation and application technology of microspheres involves the interdisciplinary of materials, polymers, biotechnology, electronics and other disciplines. Although it is only a small sphere, it is very difficult to produce a specific size and uniform microsphere in a stable and large scale. The high technical threshold makes this material listed as one of the 35 "bottleneck" technologies that restrict the development of China's industry.
Traditional microspheres are mostly prepared by suspension polymerization, but the microspheres prepared by this method have a Gaussian distribution and a wide particle size distribution. It is necessary to use screening technology to obtain microspheres with uniform particle size. At present, screening technology has been blocked by overseas enterprises for a long time.
At this stage, most high-performance and high-value-added nanospheres in this field are monopolized by foreign enterprises, such as Merck, Cytiva, Thermo Fisher, JSR, etc