A New Polyurethane Material Has Been Developed By The Chinese Academy Of Sciences.

Recently,

The bio based and bionic polymer team led by Wan Xiaobo has successfully developed new polyurethane materials and is expected to break the monopoly of foreign enterprises on such materials.

Researchers at the Key Laboratory of bio based materials, Chinese Academy of Sciences, have carefully adjusted the molecular structure of hydrophilic polyurethane resin.

The density of the intermediate chain arrangement and functional groups promotes the formation of uniform and dense crosslinking network in gel, breaking through the related key technologies, and synthesizing polyurethane resin with high water holding capacity, high mechanical strength and excellent emulsifying properties.

At present, the team is on the right side.

The factors affecting water holding capacity and mechanical strength were further studied in order to further improve the water holding capacity and mechanical strength by optimizing the reaction conditions, and at the same time optimize the storage period, oxidation resistance and UV resistance.

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Yesterday, the eighty-ninth World Textile Conference opened in Han Dynasty, and nanofibers became a hot topic for experts.

Wang Xun, chairman of the World Textile Conference and Dean of textile School of Wuhan Textile University, is one of the authoritative experts in this field.

He revealed that the yarn made by his laboratory can now be thinner than 100 nm, and the fineness is only half that of the existing nanofibers in the world.

It is understood that the diameter of nanomaterials is smaller than that of bacteria and viruses. If we can achieve mass production, we will be able to withstand the overwhelming majority of bacteria and virus protection products, and deal with PM2.5.

Wang Xun introduced that nanofibers can be used as high-performance materials, including filter materials such as respirators, similar materials such as battery separator, and medical materials.

Compared with ordinary textile materials, high performance materials consume less raw materials and achieve better results.

For example, masks made of nanofibers, because the yarns have been thinner to the nanometer level, and bacteria and viruses are mainly microns, so they can withstand most of the bacteria and viruses, which are much better than the existing masks.

"Like PM2.5, fine masks made of nanofibers can resist 100%.

Of course, if we are to resist Ebola virus, we need more layers of protection, and we need to solve problems such as respiratory obstruction. "

According to Wang Xun, although nanofibers have mature samples in the laboratory in recent years, they have not been able to mass produce, which is exactly what the global textile industry is trying to solve.

There are two main reasons: first, mass production is technically difficult, and the two is high production cost.

At present, Wuhan Textile University is working with relevant enterprises in Jiangsu, and has already been in the forefront of domestic industrialization in the field of nanofiber technology.

It is estimated that the mass production of nanofiber materials will be achieved in the next 3 years and will go to the market.