Yu Shuhong, academician of the Chinese Academy of Sciences: Biomass base materials are key new materials in the post -petroleum era

Economic Observation Network reporter Li Jingheng "The core driving force of human society development (one) is material innovation, and new materials appear in each era." On July 5th, the eighth global deep business conference and Guangming in Shenzhen were held in Shenzhen. At the Science City Conference, Yu Shuhong, an academician of the Chinese Academy of Sciences and a professor at the Southern University of Science and Technology, said in the speech of "Industrial Manufacturing Materials".

Yu Shuhong said that in ancient times, from the stone era to the iron era, and in various high -tech fields in modern times, it would also be used to innovate the new materials. For example, new materials such as polymer, alloy, semiconductor, carbon material, new compound materials, etc. are widely used in computers, environmental protection, aerospace, new energy and other fields.

Therefore, Yu Shuhong believes that new materials are the material basis for the development of modern science and technology. New material industry has high technical barriers, difficult to develop research and development, and rely on the close cooperation of upstream and downstream enterprises in the industrial chain.

Taking plastic materials as an example, he introduced his research team's research progress in this field. The pollution problem brought by the plastic industry is very common. The ocean in the world can now be said to be clean. The current sea water is contaminated by micro -plastic, and its size is micron -level and nano -level, and it is invisible at all with the naked eye. On the surface, the seawater is blue, but it has actually been polluted. In addition, micro -plastic has entered a global circular system, including rivers, atmosphere, soil, etc.

In June 2022, the latest research released by the international frozen circle top journal The Cryosphere (Cryosphere: Frozen Circle) showed that micro -plastic was found in Antarctic Snowfall. And in the air in the Antarctica, the pollution of micro -plastic is becoming more and more common.

Yu Shuhong said that human beings have developed from agricultural civilization to industrial civilization, and plastic is the product of industrial civilization. The raw materials of plastic are coal and oil, but coal and petroleum will be used up one day.

"So we have to think about what kind of materials should we use in the post -oil era? And as long as agriculture has photosynthetic, it has been growing, including shrubs outside the window. After you cut it off The endless use, "said Yu Shuhong.

Therefore, Yu Shuhong believes that new materials in the age of plastics based on renewable biomass raw materials are a key way to solve plastic pollution. Yu Shuhong's laboratory has been studying how to use chemical methods and design in the past ten years to create new materials through biomass.

For example, their laboratory first created the method of rapid separation of biomass nanopal fibers. Cellulose has a lot of content in vegetables, and the difficulty is how to achieve a large amount of extraction. According to its introduction, the practitioners can already achieve a few tons of high -quality nanoconulse in one hour. In addition, the raw materials of the paper are mainly plant fibers. If the technology of Yu Shuhong's team is used, a piece of A4 paper can be turned into many Nano -scale A4 paper.

"Our technology is to turn a fiber into tens of thousands of millions of nano fibers. And after using this paper, put it in the soil, and will automatically digest the bacteria in the soil after three weeks." Yu Shuhong said Essence

At the same time, compared with polypropylene plastic, the materials they develop can tolerate high temperature areas. Zero to 200 to zero 200

With the degree of degrees Celsius, their materials are almost inflated. It is difficult to find such materials now, and the temperature does not swell as the temperature changes. Therefore, Yu Shuhong believes that their materials hope to develop in high -end fields, such as improving the tolerance of electronic devices to temperature and environment.

In addition, the environmental protection packaging materials made of biomass bases are far better than traditional commercial food packaging films, and the cost is lower than the existing degradable packaging film. Taste. Moreover, the bionic structural material made of nano -fiber group is far better than engineering plastics.

Yu Shuhong said that in the future, this high -performance material can be widely used in biomedical, aerospace, military defense and other fields.

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